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Topic: Autonomous

[Episode #283] – Transportation Beyond Electrification

Transportation continues to electrify, as a quarter of the world's new car market in 2025 was electric, both battery and plug-in hybrids. And this area of the energy transition is already showing up in metrics that matter for the climate. Recent data shows that running a battery electric car on Europe's grid cuts lifetime emissions by more than 70% against a comparable combustion car.

But even as progress on electrifying transportation continues, many other factors are holding back the deeper decarbonization we need. A switch to EVs won't remove traffic congestion on its own, or change how much of the street a passenger car consumes at the expense of smaller and lighter options. Vehicles turn over far faster than the streets they run on.

What can make our mobility system sustainable beyond the fuel? This is exactly the tension we were getting at in Episode #96. In this episode we return to our host Chris Nelder's 2019 conversation with Debbie Hopkins, now Professor of the Human Geographies of Mobility at the University of Oxford, who warned everyone working on the technology side. Swap the engine or change the fuel and you end up with the same unsustainable system.

When Chris and Debbie spoke, electric cars were about one in forty sold worldwide. Even though now it's one in four, that still won't get the job done as the energy transition's final answer. Transportation remains the single largest source of US greenhouse gas emissions, and it will take more than decisions about engines to tackle that.

Guest:

Debbie Hopkins is Associate Professor in Human Geography at the University of Oxford. Her position is split between the Sustainable Urban Development program, the Transport Studies Unit, and the School of Geography and the Environment. Debbie is a research affiliate of the Centre for Sustainability, University of Otago, New Zealand and Associate Editor of the Journal of Sustainable Tourism. Debbie has co-edited two books on transitions: Low Carbon Mobility Transitions (Goodfellow) in 2016, and Transitions in Energy Efficiency and Demand (Routledge) in 2018, both of which build upon her research interests across climate change, low-carbon futures and sociotechnical transitions. At Oxford, she leads research into expectations of automation in freight, everyday experiences of UK truckers, and novel methodologies for researching mobile work.

On Twitter: @debbiehopkins_
On the Web: Debbie Hopkins’ page at Google Scholar

Geek rating: 2

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[Episode #96] – Sustainable Mobility

Energy transition is happening quickly and disruptively in the transportation sector. But it is generally an open question whether the transition currently at hand is producing socially beneficial results. As we grapple with a sudden influx of new modes of mobility and business models, and contemplate the dawning of an entirely new mobility paradigm, are we just letting technology take us wherever it wants to go, or are we guiding technologies toward sustainable mobility? For that matter, what does sustainable mobility even mean? How can we weigh up all the pros and cons of new mobility modes—not just the social effects like safety and equity, but the environmental impacts, the total impact on the energy system, and the socioeconomic strategies we bring to our urban development and civic planning activities more generally? Can we hedge our bets against sudden and massive dislocations produced by autonomous vehicles? We explore all those questions and more in this episode with a researcher from Oxford University who has studied them deeply.

Geek rating: 2

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[Episode #75] – Transportation Transition

Vehicle electrification is gaining real momentum in 2018, from light duty passenger vehicles, to medium and heavy duty vehicles, port equipment, and even ferries. But this rapid transition in transportation isn’t without its risks, its critics, and its incumbent opposition. Will EVs take over the personal vehicle market, and if so, how quickly? How much of a role will ridesharing services play in the future? What’s the future of autonomous vehicles? How will the future of personal vehicle ownership look? Is there going to be enough supply of rare earth metals to support the EV revolution? Are lithium ion batteries going to become an environmental hazard or will we recycle them?  Are EVs cleaner than high-efficiency gasoline vehicles on a lifecycle basis? Will EVs or robotaxis increase the vehicle miles traveled, and if so, what will be the net effect on emissions in that scenario? How should we be planning to accommodate the loads of EV charging on the power grid? And what about the loads of the medium- and heavy-duty sectors? Can drivers and bicyclists and robotaxis learn to share the road? And what would a transition-friendly transportation infrastructure look like?

Our guest in this episode has researched all of these questions, and shares with us the best available knowledge on the rapidly evolving sector of new mobility. Costa Samaras is an associate professor in the Department of Civil and Environmental Engineering at Carnegie Mellon University who has published numerous studies related to new mobility and the effect of EVs on emissions and on the power grid.

Geek rating: 7

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