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Failure is the only option

Siddartha Khastgir - Medium blog image 1 - Ski accident.

I just celebrated (kind of) my 32nd birthday, so I thought of writing something that is very personal and close to my heart. Science and engineering have always fascinated me — being born in a family of medical doctors and being married to one, obviously played a role! Fundamentally what attracted me to science and engineering is their impact on people’s lives — one can see it now more than ever in our fight against COVID-19. But this attraction to science meant I also loved movies about science and/or engineering.

Back in 2004, I was scrolling through channels on a Saturday evening while having my dinner. I stumbled across a “science” movie — The Core. A lot has been said about the “bad” science in the movie (I wasn’t aware of that at the time), but one dialogue from the movie has stuck with me since then: Commander Bob (Bruce Greenwood) says to Major Beck Childs (Hilary Swank) –

“You are not really a leader until you have lost.”

As a fifteen-year-old, growing up in a middle-class family in India, this statement came as a huge shock and a surprise to me. Back home, and as a society, we had always looked down upon failures (and still continue to). This was ingrained in us, but it also motivated us to push harder and harder. It was not until 10 years later while working in the German auto industry at FEV GmbH in Aachen that I realised that experiencing failures is the best thing that can happen to me. I owe a lot to my FEV colleagues (and my time in Aachen), but the most important thing is, they taught me a way of life. One of my ex-colleagues once said to me: “sometimes you need to let it burn (fail), so that people (and you) feel the heat (learn the lessons)”.

The famous Apollo 13 movie and Gene Kranz’s (Apollo 13 Flight Director’s) subsequent book publicised the cult phrase — “Failure is not an option”. I humbly beg to differ. In the real-world, Failure is THE ONLY option.

Most of my learnings have come from my failures. I have had some very bad failures, some expected and some unexpected. Looking back, I am grateful I had them because it is only from my failures that I have learned what not to do or how to do it better, thus winning half the battle.

Formula Student

At IIT Kharagpur (KGP), in my UG third year, I founded and led the Formula Student (FS) team with a goal to have the first car built within 12 months. We had a super motivated team, all inspired by doing something that had never been done at IIT KGP — a student-led project making a full-size racing car. But like any engineering project, as we got to the nuts and bolts level, we experienced more and more challenges (technical and administrative). Deadlines came and went. We moved the target dates and moved them again. We registered for an event but couldn’t make it as the car just wasn’t ready. We finally got it ready almost 24 months after the project start. For most of my KGP friends and for me personally, the FS project defines my time at KGP.

Siddartha Khastgir - Medium blog image 2 - K1 — IIT Kharagpur’s first Formula Student car (Nov 2010).

I failed and we succeeded at the same time. I failed as what was supposed to be a 12-month project ended being 24 months long. We succeeded as we did get IIT KGP’s first-ever FS car running on campus, first of many in the following years.

On a personal level, the failure and the success of the project taught me to be optimistic, but to be realistically optimistic. Too often in our passion for the project, we agreed to impossible deadlines (sometimes I forced upon ourselves). Adrenaline is great, but adrenaline can’t create time or defy the laws of physics and engineering principles.

The PhD journey

In my first ever blog, I said — “Failures are an essential part of a PhD”. I have lived every word of this statement and the emotion associated with it. I was chuffed that my first three papers (of my PhD) were accepted, only for the next five to be rejected. To top it all, the results of my first experiments (second year of PhD) were just pathetic! I concluded that the experiment was a failure. It was then, my PhD supervisor (Professor Paul Jennings) said to me — “don’t worry if the experiment is not successful. At least you know what doesn’t work. Even that is a contribution to knowledge.” This has stayed with me ever since. It made me realise that every failed attempt meant I was wiser for the next one. The more we fail, the more intelligent we become in framing our next hypothesis and having the correct intuition.

Life as a researcher

Siddartha Khastgir - Medium blog image 3 - Rejection stamp. Being in academia can be interesting but also very frustrating. The lack of long-term thinking means we are always writing grant proposals to develop ideas. The mathematics of the funding process means that majority will have unsuccessful bids. I personally have had many grant proposal rejections! The first thing I do when I receive an unsuccessful bid notification is asking for feedback (if not already provided). Many times, funding organisations have gone beyond their standard processes and shared reviewer feedback with me. This feedback is absolutely key. I accept the fact that not every grant proposal I submit will be successful. But I don’t want to carry the mistakes that led to one rejection into the next proposal.

The chess grandmaster — Gary Kasparov once said: “find out the nature of your mistakes… be very honest. Brutally honest.”

In the life of a researcher, everyone has a role to play to help researchers succeed — from funding organisations to line managers. Feedback is key. Sometimes I have applied for grants where the funders have mentioned that they can’t provide feedback due to the number of proposals. To such funders I say — “if you can’t provide individual feedback, then please don’t run funding calls.” By not providing feedback we are preventing a person from improving on their shortcomings and growing professionally, and possibly even affecting their mental health negatively, as they keep guessing the reason for their rejections.

A Harvard Business Review article summed it up nicely for me — “to be successful, you need to understand the vital difference between believing you will succeed, and believing you will succeed easily”. And on that journey to success there will be innumerable failures, the big question to answer is — whether you choose to continue. So, let’s celebrate failure, because only when we fail, can we succeed.

Science and engineering have been and will remain a big part of my life. For scientists and researchers to impact people’s lives, we need to allow them to fail. Rarely do we see geniuses who get everything right for the first time. For the mere mortals (like me), the more I fail, the more I succeed. I will end by sharing my motto for life:

Siddartha Khastgir - Medium blog image 3 - Train tracks with leaves.

“It’s never over, depends on where you put the full stop.”

Don’t stop after a failure, take the next step. It will always be the first step towards success…

As always, a big thank you to my biggest critics — Dr Poonam Goyal (my wife), Professor Paul Jennings, and Dr David Bott, for the inspiration and feedback on earlier versions of this blog.

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Featured, Opinion piece

Five ways to get the most out of a PhD

Siddartha Khastgir PhD

The world is in an unprecedented situation amidst the COVID-19 outbreak, with uncertainty associated with every aspect of our lives, including the research community. Researchers are anxious about their funding and contracts, PhD students worried about finishing their PhD on time and industry cutting back their research plans. At the bottom of the pyramid, PhD students might well be worst hit. While it is great to see UKRI rising to the occasion and extending support to PhD students with up to six months extension, the PhD journey just got harder in these uncertain times. I have tried to pen a few thoughts on getting through a PhD, especially in uncertain times like now, based on my experiences and learning during mine at WMG, University of Warwick, UK.

1. Plan

Your PhD is one phase in your life where you are truly in control of your time. Later on your life will be controlled (to some degree) by your employer. It is best to leverage this precious gift as you are only accountable yourself. However, it can be difficult to see the end at the beginning of the PhD. Having an outline plan makes it easier to define your personal strategy. You can dictate the pace, assign the mini-goals and you yourself decide your research path. However, be ready to review and modify plans periodically. I found mind mapping exercises as a great way to add structure to your thoughts. It helps you to plan by enabling you to identify when to diverge and converge your research.

PhD supervisors should be a big part of your plan. Most supervisors are very busy people and respecting their time is key. When things need reviewing, you need to be disciplined to get work out to supervisors, giving them enough time for critiquing. One approach I used was to regularly send short chunks of work (thesis chapter or even sections) for comments to my supervisors.

2. Pragmatic

At the start of the PhD, every student has the aspiration of changing the world. I remember within a few weeks of starting my PhD, I created a huge mind map of everything I wanted to achieve. I honestly thought that in three years of my PhD, I would solve the “autonomous vehicle safety” question – an area in which the automotive industry has poured in billions of dollars over the last decade and still hasn’t found an answer. And today, here I am, two years after my PhD, starting my UKRI Future Leaders Fellowship focussed on solving the same question (although having a head start as I am building on what I learnt in the last five years).

So it is essential to manage your expectations (not to diverge too much in your research) and do something really in-depth with great rigour. Here the role of the supervisor is also key to enable the initial diverging nature of research but also ensure the students start converging their research at the appropriate juncture.

By the end of the PhD, it was clear to me that a PhD journey was as much about the tangible output of the PhD, as it was about the learning the process of exploring the unknown. I don’t mean to underplay the tangible impact of a PhD, but want to emphasise that the research approaches you learn in the three years of your PhD, you will apply them for the next thirty years of your professional career. In the long run, the story of your journey is more powerful than the destination itself. It was also one of my biggest motivations and something I realised during my time in the German auto industry while working in a team of PhDs at FEV GmbH.

3. Perseverance

It is essential to have constant curiosity and ask questions (no matter if the answer is not what you wanted or expected). My PhD supervisor, Professor Paul Jennings always said to me (which I now say to those who I supervise) – “If you don’t ask, you don’t get”. It is a simple thought but somehow our human nature makes it hard to put to practice.

Another aspect to overcome during your PhD are the “second year blues”. By mid-way in your PhD, the excitement of starting a PhD is long behind you while you don’t even see how the end product of your PhD would look like. Second-year blues are often cured by strong support, encouragement and constructive feedback (mostly by the supervisor but also your co-PhDs and wider friends).

As PhD students sometime we tend to work alone (especially during the finishing phase) or with limited collaboration, which can lead to feeling isolated and lacking in motivation. Speaking with friends, colleagues and supervisors, and sharing a few laughs (in the current situation virtually!) is essential to keep you going.

The finishing phase (last few months) is by far the toughest phase of a PhD. Writing your 70,000 words thesis can be lonely. For me (having previously been in industry) it was especially frustrating as I thought I would rather focus on the impact of the research I have already done, than write my thesis. However, what this phase teaches you is – finish what you started, no matter how tempting the lures of other things might be. It is your perseverance and discipline that will get you past the finish line.

4. Patience

By the time you hit the second year blues, you would have done lots and lots of reading, experiments may be in design phase, or results may not be what you expected. It will be very easy to get impatient. But then again, if you knew all the problems and their answers, you wouldn’t be doing a PhD!

One thing to always remember is that you are not the first to do a PhD and certainly you will not be the last. Like the clichéd saying – “time is the best healer”, in a PhD’s case, “time will teach you how to do research”. One of my biggest learnings has been to embrace uncertainty.

Whenever you take on a new project in academia or industry, there will always be uncertainty associated with it. You can either be patient and embrace it, or get stressed about it. If you chose the former, you would have taken one step towards success…

5. Positivity

Last, but the overarching thing to ensure you enjoy and succeed in your PhD journey is to be “realistically optimistic”. Every experiment you do will not be a success or every publication you submit will not be accepted in a top journal or conference. Failures are an essential part of your PhD, and learning from them will determine your success (not only in your PhD but also beyond).

However, some supervisors can be overly prescriptive with their students. To them I would say, you may think you are helping your students achieve quick results, but in the long run you are doing more harm. Allowing students to fail and learn from it, is the essence of a PhD. As long as you gave it your best shot, it is “absolutely OK” to fail, even that is a contribution to knowledge and one can (and should) be positive about it.

To top it all, your PhD is a piece of research that you understand the best. You know more about the subject that the examiners judging you in your final viva!

I will end by saying I will always cherish the walk from right to left of the Butterworth Hall (Warwick University graduation ceremony), being handed THE piece of paper. The emotion of those 15 seconds made the three years absolutely worth it. I spent a lot of thought and emotion in writing the “acknowledgement” section of my PhD thesis. Sometimes I still tend to read that section, it is my way of reliving each day of my three years of PhD and the emotion of my graduation…

To end in Paul’s words: “PhD is a training in research”, and personally a journey worth having. I am glad I did it and hope you do too, especially in these uncertain times…

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Find out more about Siddartha's research here.

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Featured, PhD

The Curious Case of Operational Design Domain: What it is and is not?

In a recent blog for Zenzic UK, I talked about why absolute safety is a myth and that there is a need to create Informed Safety to ensure safe deployment of Connected and Automated Vehicles (CAVs). The concept of Informed Safety is very apt in the current COVID-19 situation. The easing of lockdown rules doesn’t mean that it is absolutely safe to be going around mingling with people. However, it does mean that given we follow a set of rules (and we know why these rules exist), we may be safe. If anyone is guaranteeing your absolute safety in these times, they would be lying to you!

Similarly, the thought of proving or claiming absolute safety for CAVs is unreasonable. Safe deployment not only needs safe technology but also safe use of the technology, which can be achieved by imparting Informed Safety (which prevents misuse and disuse). Informed Safety essentially means the user is aware of what a system can and cannot do. An aspect of Informed Safety involves understanding ‘conditions’ in which the CAV is capable of operating safely. The CAV industry calls these ‘conditions’ — the Operational Design Domain (ODD). For example, the operating conditions (ODD) of a low-speed shuttle could include a city centre or a business park, and not a four-lane highway!

Siddartha blog pic

By defining the ODD, one is essentially in-part defining a CAV’s capabilities and limitations. I would like to point out here that defining the ‘limitations’ is more important (than capabilities). Why are limitations so important? Because limitations illustrate the boundaries of the ODD and when the CAV can no longer operate safely. Thus, the role of ODD is especially important for higher levels of automation — SAE level 3 and SAE level 4.

The Motivation

Be it the creation of the safety case for trials (or commercial deployment), or identifying test scenarios for CAVs, defining the Operational Design Domain (ODD) remains the first crucial step of the process. However, over the last six-seven months I have had innumerable discussions (both nationally and internationally) with industry, government, and academic experts about the concept of Operational Design Domain (ODD). On one hand, I feel super happy and on the other, I feel a bit frustrated! I feel happy because finally (after four years of hype) people are talking about ODD (and asking the right questions) which is fundamental to the safety of CAVs. But I feel a bit frustrated because everyone has their own understanding of what is an ODD, to fit their products or pre-conceived notions (a perfect example of their confirmation bias).

After speaking with much of the CAV community, I believe there is a need to address some of this seemingly apparent void in the industry and add clarity to the question: ‘what is an ODD?’

The Definition

Let us start with the original definition of the term ODD. The Society of Automotive Engineers (SAE) in their SAE J3016 (first published in 2014) introduced the term ODD in the context of CAVs. Since then it has been updated twice with the latest update being done jointly with ISO, which is happening as we speak. According to the 2018 version:

SAE J3016 defines ODD as “Operating conditions under which a given driving automation system or feature thereof is specifically designed to function, including, but not limited to, environmental, geographical, and time-of-day restrictions, and/or the requisite presence or absence of certain traffic or roadway characteristics”.

While some might say the definition is too wordy, it still provides what we need to know about an ODD. The key thing to keep in mind here is the words “operating conditions”.

The Confusion

Siddartha blog image.

While the definition of the term ODD does exist, in the last months, I have heard a variety of interesting ideas from many organisations about things that an ODD definition should include. Some of the interpretations did surprise me! From probabilities of pedestrians jumping in front of CAVs to the ability of a CAV to do an unprotected right (or left) turn manoeuvre, from ODDs for simulation to saying ODD is the same as test scenario: it is an interesting mix of ideas.

To be honest, ODD is not the first such instance when the industry and research community have been unable to agree on a definition. A classic example of such confusion is another widely used term — ‘scenario’. During my PhD, I created a glossary of terms after reading many international standards. To my surprise, I found eight (!) different definitions of the term scenario in as many standard documents. So much for standardisation…

Coming back to ODD: ODD is a characteristic of the system (a system property). The keywords in the SAE J3016 definition of ODD are ‘operating conditions’. A manufacturer would choose the specification of its CAV’s sensors depending upon its desired operating condition. For example, the sensors required for a motorway chauffeur system operating at 70 miles per hour on motorways, will be very different from the sensors required for a shuttle operating at 12 miles per hour, ferrying passengers in business parks, and which will be different from sensors required for operating in wintry conditions (like the one below).

Siddartha image 2

The thought of defining probabilities of ‘things’ happening (e.g. pedestrian jumping on the road) as a part of an ODD is a bit of an oxymoron. As ODD defines the operating conditions, the choice of sensors on the CAV should not be based on jumping from an assumption that there is a 50% probability of a pedestrian on the road, to a conclusion that only 50% accurate detection is required. That would be an unsafe system!

On the subject of CAV behaviour (e.g. vehicle manoeuvres): The behaviour of the CAV is not a part of the ODD but rather the outcome of the CAV responding to the driving environment (operating conditions) it encounters, based on its performance or technology limitations. However, when we define the maximum allowable speed of a CAV (not instantaneous behaviour), in terms of the performance limitations of the automation, that would be an ODD limitation. On the other hand, when the top speed was a limitation based on tire performance, it would be a vehicle limitation and thus not an ODD constraint.

ODD ≠ Scenarios (be it functional, logical or concrete)

To keep it simple — ODD is not the same as test scenarios.

If there is one message I would like you to take away after reading this blog, it is this. There is a sizeable section of engineers who are starting to use ODD and scenarios interchangeably. There is no doubt that ODD and scenarios are related and they absolutely should be. However, being related doesn’t mean that they are the same. For some reason, this is a fact I am finding the industry is having a hard time accepting. It might possibly be because the industry is getting indoctrinated with the scenario way of thinking (and rightly so when it comes to testing), and thus have a natural tendency to badge everything we do (or talk about) with the tag of ‘scenario’ — (fans of Daniel Kahnemann (like myself) will call it — the system 1 thinking).

This is possibly the biggest source of confusion leading to the concepts of manoeuvres, probabilities, use in simulation etc. within the concept of ODD. Rather these concepts (scenarios, simulation, and probabilities) are derived from ODDs.

So what is an ODD?

ODD essentially defines the operating environment for which a system is designed for. It may also be seen from the perspective of the end-user (e.g. city council authority) as the operating environment in which a system should be able to operate safely. It is essential that there is an overlap between the two perspectives of the ODD, manufacturer (or the system designer) and the end-user, for ensuring the safe deployment of CAVs. More often than not, one of these perspectives is forgotten. However, I must admit that SAE J3016 doesn’t provide this clarity either. Latest intel (from informed sources) suggests that a new SAE document will address this.

Siddartha blog image 3

One thing we as an industry have to accept is that an ODD definition will never be exhaustive. One can make a list of ‘n’ attributes used for an ODD definition, but there will always exist a ‘n + 1th’ attribute. Like all safety processes, our goal as engineers is to ensure we do our best! And we do (well, mostly!).

One of the first such attempts at defining a standardised way of specifying the ODD has been BSI PAS 1883 and SAE AVSC Lexicon. Inspired by the work carried out by PEGASUS project (Germany), NHTSA, University of Waterloo and WMG’s role in Streetwise project (UK) and OmniCAV project (UK), BSI PAS 1883 specifies a taxonomy for ODD attributes and has three high-level attributes:

  • Scenery: non-movable elements of the operating environment
  • Environment: weather and other atmospheric conditions
  • Dynamic elements: all movable objects and actors in the operating environment

An obvious question would be — why would anything I say, override the pre-conceived notions. Let me address this head-on, and I must make an honest confession here.

ODD as a term was coined by the SAE J3016 document, created by a team of experts on behalf of SAE’s ORAD standards committee (back in 2014). Initially, I too shared a lot of the confusion and it was not until two years back that I got the clarity in my head. I had the good fortune of having access to some of the authors of the original SAE J3016 and discussed the subject of ODD at length with them. In subsequent years, we have worked on the SAE J3016 revisions together, with most recently being in the joint ISO/SAE working group creating ISO 22736 (the ISO version of SAE J3016).

And as I thought I had mastered ODD, in comes the term ODC — (Operational Design Conditions).

Introducing ODC (Operational Design Condition)

In my more recent (last month) discussions, I have been introduced to the concept of Operational Design Condition (ODC) which is being advocated as a superset of ODD. I feel the concept of ODC, helps clear some of the confusion surrounded around ODD. ODC is said to consist of three things:

  • ODD
  • Subject vehicle (ego vehicle) capabilities (instantaneous)
  • Driver capabilities

ODC is a superset of conditions required for the CAV to operate safely. If we don’t have a detailed understanding of your system’s ODD and ODC, we are essentially creating an unsafe system.

Standardisation galore!

As I mentioned earlier, up until seven months back, there wasn’t much of a discussion around ODDs. All of a sudden, not only there are a lot of discussions, even the standardisation landscape has become a crowded field, with various national and international standardisation bodies wanting a piece of the pie (with their own interpretation of ODD and its usage). Be it ISO or BSI, SAE, or UL or even ASAM (standardisation bodies), everyone is interested in standardising something or the other for CAVs and ODDs.

It is absolutely fantastic to see so much interest in standardisation. However, in our recent BSI CAV Standards Advisory Board (SAB) meeting, it was evident that we need to be careful about things we standardise, and not to standardise immature technology or in an area where we (as an industry) still don’t know enough. For example, in some of the forums I have been involved in, we have spent days trying to get experts to understand what is an ODD before we actually start a standardisation project.

While BSI PAS 1883 defines a taxonomy for ODD definition, ISO 34503 adds a high-level definition format for ODD using the taxonomy, and ASAM OpenODD aims to provide a simulation level format for ODD. UL 4600 provides some considerations for ODD definition and SAE AVSC provides a lexicon for the ODD definition. The subject of ODDs and scenarios is large enough for everyone to have their niche areas. One word of caution here is that we need to avoid creating conflicting standards. Someone needs to play the role of coordinating these activities to ensure that there are no conflicts.

The Hope…

With all of the standardisation activities and confusion, what is refreshing to note is that people are starting to accept that there is a lack of understanding. ODD is key to CAV safety, and if we don’t have a common understanding of it, there will always remain a clinch in our logic for CAV safety. The key to the success of the CAV industry is knowledge sharing and collaboration. I personally have had discussions with SAE members, ISO and ASAM. And the great thing about the CAV industry is that we are willing to learn and accept, given logical arguments. With my mission to ensure the safe realisation of the CAV technology, that’s what keeps me going in this industry and in standardisation…

And while there is hope, great things can always happen…

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I serve as the work item leader for the ISO standard (ISO 34503) on Taxonomy for an Operational Design Domain which is building on the work I led for BSI and CCAV on PAS 1883. A big note of thanks to Dr Steven Shladover (UC Berkeley, PATH Program), Ryan Lamm (Southwest Research Institute, TX, USA), Dr Peter Burns (Transport Canada), David Webb (CCAV, HM Government), Kenji Okamura (JSAE, Japan), Dr Edward Griffor (NIST, USA), Dr George Economides (Oxfordshire County Council), Dr Dave Jones (UK’s Met Office), Dr David Bott (WMG) and Professor Paul Jennings (WMG) for their comments on this blog, and for all the discussions we have had over the past many years.

Original article source here.

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Featured, University of Warwick, Collaboration

AVs Must Protect Their Passengers Last

Pedestrians crossing a road. Article credit: Written by Graham Jarvis for TU Automotive in collaboration with Dr Siddartha Khastgir. Original article here.

Traditionally insurance policies focus on the vehicle and its users.

Even with fully autonomous vehicles (AVs) they will concentrate on the vehicles. However, liability may rest more with the automotive manufacturers than with an autonomous car, van or trucks users. What’s missing, says Tony Fish, chief executive of Digital20 and an artificial intelligence expert, is how policymakers, carmakers and insurers cover people outside of them in an accident, such as pedestrians and other road users.

He says there needs to be polarity in the thinking and that it’s not about a chicken-and-egg situation: “We can move away from the safety and protection of the driver, to super lightweight, highly energy-efficient vehicles that protect the public. Stop designing and building infrastructure to mimic what we have accepted, which was a poor idea at the start.”

Talking about when the law will change to protect people outside of the vehicles, he says he’s not convinced that there will be any radical change. In his view this is because there is a need to go through a step-process. He explains: “At the moment we insure the person who’s driving the car and the insurance is for that person inside the car. What we want to reach is for the protection of the person outside the [autonomous] car. We should insure both. Do we first insure that car, or the person driving the car, which is closer to New Zealand’s model.”

“In NZ, the car is insured, so anyone can drive that car, or any car that’s insured because the car has the insurance and not the individual. I suspect that the law won’t change overnight, but the law needs to think about what the journey needs to look like. I think there is no motivation to do it and so the question is why? There doesn’t seem to be timetable, a framework to have it in place in, say, ten years so that insurers can follow the timeline.”

Different models

He rightly comments that every country has its own view out how insurance should work. However, he argues that this is a tad confusing, perhaps exacerbated in the UK by insurance premiums often being paid up front for a year. There is, nevertheless, a market for premium finance and some insurance policies can be paid over the course of the year on credit. Despite this he asks whether the upfront payment model is the right one “in light of time of use-based insurance”. Fish adds that the law doesn’t seem to want to have that conversation, partly because they have built a model based on risk and premium’s being paid up front.

However, Siddartha Khastgir, head of verification and validation, intelligent vehicles at WMG at University of Warwick, points out that in 2018 the UK’s government brought into force the Automated and Electric Vehicles Act (AEVA) 2018. He comments: “The AEVA 2018 takes into consideration people outside the car and insures them in case they suffer damage owing to an automated vehicle being driven in automated mode. This is an important aspect of the Act, which enables automated vehicles to be deployed on UK roads.”

With regards to the safety and insurance cover of people outside of, for example, autonomous vehicles, Khastgir thinks there is a need for a systems approach in order to succeed. That may involve technology development, regulation, business models or insurance. “Therefore, the law not only needs to consider the safety of the people inside the AV but also the safety of the actors (pedestrians, cyclists, other vehicles etc.) around the AV,” he says.

“However, some autonomous may be designed to operate in areas where other actors are not allowed. In such a situation, it may be acceptable to consider the safety of those inside the vehicle only. Having said that, the AV will need to be able to implement a mechanism to continuously detect if other actors are present or not and safely cease operation in case of the presence of another actor in the surroundings.”

Setting standards

In response Fish comments that it’s not just about mandating law. To him it’s about setting standards to protect people. He claims that when we set standards to protect the person within the vehicle, lots of wasted energy is created in terms of designing something that’s not required, including wasted raw materials. This means, for example, a car may reach the end of its life without having been involved in a crash. “The level of waste we’ve created is pretty bloody mad and this has created a race to become bigger not smaller,” he suggests.

From an ethics perspective, Khastgir believes that both the person or persons inside the vehicle and those outside of it warrant cover: “For autonomous vehicle technology to succeed, it needs to be both. It is imperative that the safety of both in-vehicle occupants and actors outside the vehicles is considered in all technical development, regulatory and liability discussions.”

“An AV will interact with its operating environment. Therefore, one cannot design a safe AV without considering the interactions of the AV with its surroundings, for example with pedestrians, cyclists, infrastructure etc.” Subsequently vehicle manufacturers’ safety assurance processes for AVs will need to consider a variety of test scenarios to see how the autonomous vehicle handles oncoming pedestrians, cyclists, other vehicles. He says, as ‘actors’, they have to be part of the operational design domain (operating conditions) of the AV.

Economics of value

Fish nevertheless enquires: “Where are we having the discussion: whose life do we value more?” He believes the conundrum of whether the person in the vehicle if more of value, or the person outside the vehicle is more of value, falls down to the economics of value. “It’s the same question that COVID-19 has raised”, he suggests before adding:

“Both have an economic value impact on society, so why have we made a distinction between those two values. The insurance companies set a value on life, whether you die or kill someone while driving. That person who’s been hit then becomes a cost to society. So, why don’t we make cars safer for the people we hit? That’s the observation.”

Changing behaviour

He wonders what would have happened if seatbelts hadn’t been made mandatory. Would people have changed their behavior? He also considers whether lives would have been significantly saved and whether there would be fewer deaths if we had to drive slower than we do. “We have to deal with the infallibility of the system we want, versus the fallibility of the human,” he remarks.

He concludes that people are far too accepting of what they already have: “We are poor at looking back and asking whether we’d done anything different, would we have had a better outcome. People don’t want to lose their agency; they don’t want to give up driving their cars, even if there would be a better outcome. It’s a discussion that becomes very political, and individuals put themselves ahead of society.”

He also argues that there needs to be more polarity between genders, arguing that even seatbelts were designed with the average man in mind, making women an afterthought. So, from an insurance perspective, and to protect everyone, policies do more than cover the individuals with a traditional or an autonomous vehicle. To gain polarity, it’s ethically right for those outside it to also be covered.

However, this may lead to what he calls Peak Paradox, which he explains “sets off individuals against society and survival against work.” From an automotive perspective, he says driving [the ability to have agency], is put against a society that wants to have safer transport. He calls for a compromise and polarity can’t be gained without one. At the moment he declares there isn’t one but it’s the outcome that everyone should want. At the moment, we’re not heading in that direction.

Date
Wednesday, 14 April 2021
Tags
Featured, Showcase, Collaboration, Autonomous Vehicles, Safety

The CASE for Intuitive Mobility

Range Rover in WMG's 3XD Vehicle Simulator in the International Manufacturing Centre.

Article credit: Written by Graham Jarvis for TU Automotive in collaboration with Dr Siddartha Khastgir. Original article here.

Daimler predicts that connected, autonomous, shared and electric (CASE) ‘intuitive mobility’ will succeed in turning the automotive industry upside down.

It thinks a true revolution is afoot, combining each component into one comprehensive, seamless mobility package. The company adds on its website: “For many years, Daimler has been investing in mobility, which goes beyond the actual vehicle. In the future, we will continue to expand this commitment. Therefore, we look forward to innovative companies and start-ups willing to work with us.” So, there will be a brief discussion about the role that start-ups can play in offering automakers innovative solutions.

In a press release Sajjad Khan, member of the board of management of Mercedes-Benz CASE comments: “With our products and services, we play a key role in shaping the mobility of tomorrow – and we are always aware of our responsibility for sustainability. We are convinced that the future is connected, electric, shared and autonomous. Our vehicles and mobility solutions show the course we already have set for tomorrow and you can be sure, there is a lot more to come.”

User-centricity

Siddartha Khastgir, head of verification and validation, intelligent vehicles at WMG, University of Warwick says intuitive mobility is about putting the user at the center of the mobility system. It’s the important to design solutions with the user in mind, right from the start. He argues intuitive mobility can only succeed if it responds to two key factors: desirability and safety.

He explains: “For society to reap the many benefits of new technologies like autonomy, electric propulsion and connectivity, it is essential to ensure the technology can be reliably accepted and adopted. The key to desirability is building trust, while ensuring that that the technologies are safe and used in a safe manner. At WMG, University of Warwick, we created the concept of informed safety which enables the development of appropriate trust and also ensures safe use of technologies. Informed safety means that the users are aware of the true capabilities and limitations of the system. While no system, or technology, will ever be 100% safe, one can still reap the benefits of the new technology if we use it appropriately and within the designed operating boundaries.”

Identify operating boundaries

To achieve this there is a prerequisite to identify the operating boundaries, and then it becomes a necessity to convey them to the user in an intuitive manner. To him, this remains a key challenge for engineers. “Thus, the concept of intuitive mobility needs to take a systems thinking approach while combining design concepts, safety and new technology development,” says Khastgir.

However, to Mercedes-Benz it’s also about sustainable mobility – about the environment. The company’s Mercedes EQ release comments: “The outlook is clear for Mercedes-EQ: we understand the limits for our planet, and to ensure innovation. This is why Mercedes-Benz AG has had its climate protection objectives scientifically verified by the Science Based Targets Initiative (SBTI). This means that the company is in line with the requirements of the Paris World Climate Accord. Achieving these objectives requires sustainable products.”

“The CASE Intuitive Mobility concept will change the way public use and interact with mobility solutions,” argues Khastgir who thinks there is potential for change in the vehicle ownership model. Instead of owning a car, for example, users will be able to purchase journeys rather than buying a vehicle for their sole use. He nevertheless adds: “However, that is a utopian dream and not something that will happen in the near term.”

Proliferation of CASE

“In the next few years, we should see a gradual proliferation of each of the CASE technologies, and the introduction of new services and business models”, says Khastgir who adds: “For example, over the last nine months, e-scooters have gained traction in the UK with various trials being conducted.”

He says there are various ‘gigafactories’ being established in the UK and in Germany to meet the increasing demand for electric vehicle batteries. This is because he finds that the uptake of electric vehicles has increased substantially over the last few years. Yet, he underlines that there is some way to go in terms of autonomous, automated technologies.

He therefore comments: “The key to the success of CASE technologies is going to be conducting safe public trials of these technologies to not only introduce them to society but also to understand user interaction with the technology in a real-world setting. Incorporating learnings from such trials is essential for the uptake of these technologies when offered as commercial products.”

Immense challenge

To enable the revolution, start-ups can play a role in helping carmakers to discover innovative solutions. Khastgir warns that the challenge of realizing CASE intuitive mobility is immense. It can’t rely on just one organization alone to find all of the solutions and to answer all of the questions surrounding it. “Based on this, the principle of collaboration is essential if we are to collectively realize the vision. It is no longer an option, it has now become a necessity. In this mobility ecosystem, start-ups play a key role in understanding ever-changing user needs, creating disruptive solutions and, owing to their nimbleness, are even able to adapt their solutions faster than the larger corporate organizations.”

So, the next generation of mobility solutions will see disruption and innovation going hand-in-hand. Khastgir believes that automakers “will need to continue to partner with start-ups to bring in the disruptive mind-set and jointly develop innovative solutions”. Through collaboration, they can bring together the best of both worlds. For example, he reveals that car manufacturers have “acquired various autonomous driving technology start-ups to boost their stable and get themselves a head start”.

Beyond the actual vehicle

Gradually the mobility ecosystem will move beyond the actual vehicle and, as this happens, the software content will continue to increase exponentially. “This is an area where many start-ups are flourishing,” he says. To develop intuitive, sustainable mobility, there is a need to be realistic based on the current state of various CASE technologies.

Khastgir explains: “While the ultimate ambition for CASE will remain a connected autonomous shared and electric mobility service, we are just not there currently. More near-term targets will include electric vehicles with connected applications improving battery range of the vehicles.”

Nevertheless, he predicts that over the next five years there will be some autonomous or automated features deployed in limited operating conditions, which is also known as an operational design domain (ODD). There may also increasingly be applications and services such as autonomous valet parking and autonomous last-mile delivery. They are on the industry’s near-term horizon.

Regarding a post-pandemic era, he thinks the nature of the ‘new normal’ is still unclear. What is apparent is that there will be more people working from home. Yet, there will still be many averse to car-sharing, further disrupting the shared and services segment. Khastgir therefore concludes by calling for the introduction of new business models and further disruption in the mobility ecosystem.

Date
Wednesday, 14 April 2021
Tags
Featured, Showcase, Collaboration, Autonomous Vehicles, Safety

Preparing our road infrastructure for Autonomous Vehicles

Siddartha Khastgir - Head of Verification and Validation - WMG - Talks at his FLF launch. Siddartha Khastgir, Head of Verification and Validation - WMG.

Over many years we have seen the rise of hype around Autonomous Vehicles (AVs), but more recently the reality of the associated challenges has become more visible to the AV community.

One of the key challenges the community is dealing with is to prove that AVs are safe. Some studies have suggested that in order to prove that AVs are safer than human-driven vehicles, they need to be driven for over 11 billion miles. While this seems to be an improbable proposition, a more compelling argument is that using the number of miles driven as an individual metric is not a meaningful way to judge AV safety. Driving billions of miles up and down deserted pristine roads is of limited value if you want to deploy AVs in centre of London or in the notoriously rainy British weather. Thus the focus of evaluating AV safety needs to switch from number of miles to the types of scenarios encountered by the vehicles, which is much more important.

However, due to the unbounded number of scenarios that an AV may encounter in its lifetime, it is unreasonable to expect they will ever be 100% safe on their own. As a result, the concept of ‘absolute safety’ is actually a myth. Having said that, we can still reap the potentially enormous benefits of AVs (e.g. reduced number of accidents, lowered emissions, improved traffic throughput etc.) by creating Informed Safety. Informed Safety essentially means that the users are aware of the capabilities and limitations of the AVs. An aspect of Informed Safety involves understanding “conditions” in which the AV is capable of operating safely. An industry acronym already exists for this: ODD – Operational Design Domain. ODD has dominated a lot of the AV safety discussion in recent months.

What is an ODD?

ODD has been formally defined by SAE J3016 as “Operating conditions under which a given driving automation system or feature thereof is specifically designed to function, including, but not limited to, environmental, geographical, and time-of-day restrictions, and/or the requisite presence or absence of certain traffic or roadway characteristics”.

ODD essentially means the “operating conditions” under which an AV can safely drive itself. For example, the operating conditions (ODD) of a low-speed shuttle could include a city centre or a business park, and not a four-lane highway. On the other hand, the operating conditions of the recently announced Automated Lane Keeping Systems (ALKS) will include a motorway and not a city centre. They may additionally include specific lane dimensions and road markings too, along with weather conditions. In order to deploy AVs safely, not only do the AV manufacturers need to define their systems’ ODD, but they also need to convey that to the regulators and local authorities in a way that is understandable to them.

The need for ODD standardisation

As ODD is fundamental to AV safety, there is a requirement to have a common understanding and a way of expressing the operating conditions between various stakeholders. Various standardisation bodies (national and international) have acknowledged this and initiated projects on standardisation of ODD.

One such project was initiated by the British Standards Institution (BSI) who recently published the PAS 1883, which provides a hierarchical taxonomy for ODD definition. The project was sponsored by the Centre for Connected and Autonomous Vehicles (CCAV), HM Govt. and led by WMG at the University of Warwick along with a multi-stakeholder steering group. Other activities in this space include the international (ISO) standard ISO 34503 (led by WMG), which builds on the PAS 1883 work and outlines a high level definition format in addition to making the PAS 1883 ODD taxonomy internationally relevant.

Understanding ODD through categorisation

According to BSI PAS 1883, ODD is comprised of scenery (geo-stationary attributes e.g. roads, traffic lights, traffic signs etc.), environment (e.g. weather information) and dynamic elements (e.g. traffic). The scenery attributes are further classified into zones, drivable area (DA) (which may be roads or pedestrian pathways for low-speed shuttles), junctions, special structures, fixed road structures and temporary road structures. Expanding one of these attributes further, the drivable area is further classified into DA type, DA geometry, DA lane specification, DA signs, DA edge and DA surface.

Awareness of ODD attributes

While having a common taxonomy and language is important for AV safety, it is only part-of the puzzle. From an AV’s perspective, it needs to be aware of every ODD attribute used to define its safe operating conditions (e.g. rate of rainfall, lane dimensions, drivable are type etc.). An AV may get this information from on-board sensing or from external sources (e.g. HD maps, traffic management systems, weather stations or other road infrastructure).

When external sources are used to get the ODD attribute information, it is essential to ensure that they provide an accurate description of the “current” operating conditions. This means that the HD maps providing information about the road conditions need to be kept updated to reflect the changing road conditions. Similarly, any road side infrastructure providing information about lane specifications (closed lanes or lane markings) need to reflect the real-time conditions. ODD awareness is essential from an AV’s perspective as it will allow it to establish whether it is safe to operate or not. If the awareness of the attributes mean that the AV is outside its defined ODD, it may decide to come to a safe stop or hand control back to the driver.

ODD Awareness: The role of infrastructure

With a focus on safety, understanding an AV’s operating conditions relies on data, regardless of whether this is making decisions based on scenery, environment or dynamic situations. To do this effectively, the road infrastructure is crucial. This is one aspect in AV safety that has unfortunately received little attention but it is a pivotal factor in enabling ODD awareness and subsequently AV safety. As mentioned earlier, in order to measure or monitor many of the ODD attributes, an AV might need sophisticated and expensive sensing systems, which could potentially make them economically unviable.

However, infrastructure has the capability of both providing much of that information and also ensuring the information reflects the current state. For example, roadside weather stations can provide information about the rainfall rate to the AV. Similarly, infrastructure can also provide information about any accidents or lane closures or speed restrictions, or any local changes in road surface condition or road markings.

Connected and reliable roads for safe autonomy

Not only will we need to maintain our road infrastructure, but we need to be able to communicate their conditions to enable AVs to decide if it is safe to operate in those conditions or not. Connected road infrastructure will thus play a pivotal role in ensuring safe operation of AVs.

Find out more about WMG's Verification and Validation research here.

Article originally published in the Road Safety Markings Association's 'Top Marks' magazine here.

Date
Wednesday, 04 November 2020
Tags
Featured, Showcase, Autonomous Vehicles, Safety

Why is it wrong to ‘just’ talk about diversity?

Diversity.

I am no fan of Lewis Hamilton (due to my Ferrari allegiances), but developed immense respect for him on a personal level when I read about a conversation between Lewis and Toto Wolff (Mercedes Formula 1 boss):

“He (Lewis) once asked (Toto) me: ‘Have you had the active thought that you are white?’ I said: ‘No, I have never thought about it,’ and he said: ‘I need to think about it [my colour] every day because I am being made aware of it.’

As a six-time world champion, Lewis has achieved almost everything there is in the sport. If he is made aware of his colour, every day, imagine what others less privileged than he, feel like or are made to feel like every day. A lot has been said in recent years and (more so) in recent months about diversity; but the question remains, why are under-represented sections of society still forced to deal with the effects of under-representation every day of their lives?

Unfortunately, we live in a society that talks the talk about diversity but rarely walks the walk. Most conversations around diversity have a siloed approach. As a society living in the 21st century, we should be ashamed that we need a campaign like #BlackLivesMatter when by now we should actually have established that Black lives must matter just as much as White lives and all other lives. No one should have to fight to get what is rightfully theirs.

Given that we live in a society which has failed us, symbolism, role models and diversity champions are needed to raise awareness. However, championing diversity without creating a meritocratic environment will reduce that championing to a token gesture and a tick-box exercise, something most organisations are conveniently doing already.

Awards: A Polarising Subject

I volunteer some of my time for an engineering charity. Back in 2014, I floated the idea of a “woman engineer of the year award” to celebrate woman engineers who have reached great heights in their careers despite the societal and organisational hurdles and stereotypes they might have experienced. For me, awards not only recognise contributions but also create role models.

Gold trophy.

I was a bit naive in thinking that setting up of the award would be a no-brainer for the organisation’s awards committee. Little did I know that a bunch of white men (‘the awards committee’) sitting in a room in central London would decide that creating an award to celebrate women engineers would be discriminatory!

Everything about this statement is just so wrong.

This is even when I got a major British engineering giant to sponsor the award, so money wasn’t even an issue! To my surprise, the more I spoke to engineers (of all genders) in the UK and internationally, the more I realised that this is a polarising topic. Some of the white woman engineers were passionately against the idea of this award. To be fair, they have been fortunate enough to be brought up in families and organisations where bias was limited and people progressed on merit. But my biggest issue with them is that they wrongly (and perhaps naively) assumed that everyone else has been as fortunate as them.

This was six years ago, and to date, the organisation doesn’t have and doesn’t want to have an award for woman engineers!

The Flawed Argument

I was following the recent uproar on Twitter against the Institute of Physics (IoP) following an ignorant blog post by their Chief Executive and the lack of diversity in their honours and awards. I don’t belong to the institute and neither am I familiar with their way of working. But one statement from that blogpost jumped out for me: “nominate more people from under-represented groups for awards”.

At the face of it, the statement makes perfect sense and yes the responsibility lies with us. But let me give you another fact. A recent study on bias in science, of over 1.2 million PhD recipients found that ‘underrepresented groups have to innovate at higher levels to have similar levels of career success’.

Nominating more people from underrepresented groups wouldn’t help when the bar for giving them recognition is much higher than their peers. Isn’t this blatant discrimination? Just having more nominations will become a hollow act and sooner rather than later, people will not be motivated enough. This is an issue with our entire academic world, corporate world and society in general.

Applying Systems Engineering

Just speaking about diversity is a reactive approach to decades of the wrongdoings of bias. While I absolutely believe that we need to be vocal and promote diversity in our teams, organisations and society, the potential impact of all our work could be far-reaching if we are able to create a culture of meritocracy. Recognising people for their contribution (irrespective of their skin colour or race, religion, gender etc.) can be immensely empowering and motivating.

One big thing I have learnt in my career applying systems engineering is that context (by which I mean the environment in which something happens), is important. Actually, context is everything! A command from a controller or a piece of faulty code may be safe or hazardous depending on the context in which they are exposed.

Similarly, circumstances under which individuals’ contributions and achievements were made need to be contextualised. When I say, judge the person on merit, I include their journey towards their achievements (equality is not the same as equity). If we consider just “what” has been achieved, it means we are assuming that everyone in the society has had equal opportunities. And in our current societal setup, I would really like to meet any person who can guarantee that!

If you’re born to poor parents you are not going to have the same opportunities as someone born to rich(er) parents, it doesn’t matter how smart or naturally gifted you are.

There is a need for those at the top of organisations to foster a truly meritocratic environment, and for those within the organisation to celebrate and embrace diversity and create role models. Unless we have this combined approach, there will always remain a glass ceiling for the under-represented and we would have failed to deliver as a society.

Should meritocracy be chosen over diversity?

Truth is I don’t know the answer. However, I believe it’s the trait of a great leader to be able to contextualise the merit (laid on paper) with the fight an individual has had to endure to achieve it, to level up the playing field.

A recent TED post on qualities of an effective team player mentioned hunger as one of the three qualities (the other two being humility and emotional smartness). A few months back, I was speaking with a friend of mine who had to fight throughout her life (due to our societal bias and prejudices), but now that fighting spirit and the drive she has, is her biggest strength. So much so that she wants her son to also undergo some level of hardship to develop that inherent hunger and self-motivation. And I completely agree with her as too much lip service is being made in the name of diversity without creating a meritocratic environment for people to grow or get recognition.

In times to come, our biggest achievement as a society would be if we have created a society where everyone has had equal opportunities and we don’t have to make this decision of meritocracy over diversity or vice versa. Diversity will then be a by-product of meritocracy. However, until then, we need to ensure that we create and celebrate role models who have cut through the hypocrisy of our society and achieved due to their hunger and desire.

An appeal to the research community and industry

When we evaluate applications (be it for awards, research funding, and recruitment), we need to evaluate them in the context of the society we live in and the obstacles the applicants have had to overcome. The academic world is especially poor at this. Unfortunately, the ‘system’ doesn’t really allow for considering what people have experienced. However, the UKRI Future Leaders Fellowships is a scheme which I think does that as it is so focussed on the individuals. And I am not just saying that as a chosen fellow. I still vividly remember a UKRI FLF video (from last year) from Professor Fiona Watt (Executive Chair, Medical Research Council), saying this scheme is for “people who don’t fit neatly into boxes!” Never before, have I heard something like this in an academic world. Kudos to UKRI for creating such a programme.

Before making a decision on applications, just imagine what they could achieve if they were given the same resources and infrastructure (because of their fighting spirit) … If we do this, the number of awardees/lecturers etc. from under-represented sections of the society would increase dramatically, which in turn would inspire many others. However, this is a short term measure.

In the long term, we need to take both a top-down and bottom-up approach to get over the decades-long wrong of ‘biases’. Recognising that the playing field is uneven and that we are not all coming from the same starting point and appreciating this in our decision making would be a major step forward. I hope we can create research and organisational culture which has its foundations on meritocracy enabling diversity.

It is a marathon and we need a few 100m sprints wins to keep our spirits high to drive the long-term commitment to a holistic approach….

................

I must admit, I wasn’t sure how this blog will be received. I was so worried (borderline scared) that I reached out to a few of my friends and colleagues to get their opinion to gauge if I should even publish it. Big thank you to Professor Paul Jennings (WMG), Dr Poonam Goyal (my wife), Corrina Urquhart (WMG), Dr Izzy Jayasinghe (UKRI Future Leader Fellow, University of Sheffield), David Webb (CCAV, HM Government), Michaela Hodges (WMG), Jennie Martin (ITS UK), Nicola Jennings (University of Bath), Luke Logan (BAE Systems), and Dr David Bott (WMG) for their feedback on this blog.

I am an Indian national and a bit outspoken (especially on matters I deeply care), and have been told that if I do the right thing, I would have a good night’s sleep (however long or short it might be!).

This blog represents my personal opinion and not that of my employer or any organisation I am (even remotely) associated with.

**Original article written by Siddartha Khastgir, published to Medium here.

Date
Tuesday, 04 August 2020
Tags
Featured, Showcase, Opinion piece