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Call for book chapter abstracts on “Policy implications of AVs” (Elsevier)

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I am pleased to announce the Call for book chapter abstracts on “Policy implications of AVs” (Elsevier book series: Advances in Transport Policy andPlanning). Submission deadline: 15.01.2019 (max 400 words).Editors: Dimitris Milakis, Nikolas Thomopoulos, Bert van Wee.

Thus far, research on policy implications of AVs has been mostly country agnostic. In this edited book volume, we focus on country-specific and cross-country/city variations of AV implications. For more information click here.



My new position at the Institute of Transport Research, German Aerospace Center (DLR)!

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Excited to announce my new position as Head of the (new) research group on ‘Automated driving and new mobility concepts’ at the Institute of Transport Research, German Aerospace Center (DLR) in Berlin!

Our new article on accessibility implications of AVs is featured in Elsevier’s latest key research list on AVs

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Our new article with Maarten Kroesen and Bert Van Wee on accessibility implications of AVs is featured in Elsevier’s latest key research list on AVs and is now offered free to access until September 30, 2018 (available here)!
In this article, we applied Q-method among a sample of 17 international accessibility experts and concluded that changes in accessibility because of automated vehicles are expected to (a) be highly uncertain, (b) induce both densification and further sprawl, (c) be distributed unequally among social groups.
Here is the abstract of the article:
In this paper, possible accessibility impacts of fully automated vehicles (AVs) are explored. A conceptual framework for those impacts is developed based on the model of four accessibility components (i.e. land use, transport, temporal and individual) of Geurs and van Wee (2004). Q-method is applied among a sample of seventeen international accessibility experts to explore heterogeneity among experts with respect to the impa…

New book chapter: The case of Mobility as a Service. A critical reflection on challenges for urban transport and mobility governance

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In our new book chapter with Kate Pangbourne, Dominic Stead, and Miloš Mladenović, we critically reflect on the “(false) promise of freedom” that accompanies MaaS. We contend that MaaS could feed unsustainable travel behaviours and pose threats to transport and social resilience and we discuss the implications for governance.

Here is the abstract of our book chapter:

This chapter provides a reflective critique of Mobility as a Service (MaaS), an emerging development seeking a role within the Smart Mobility paradigm. We assess a range of its future implications for urban policymakers in terms of governance and sustainability (i.e., social and environmental impacts). We begin by describing the origins of the MaaS concept, along with the features of precursor technologies and current early examples. We then reflect on the marketing of MaaS and use it to consider how we might anticipate some potentially less desirable aspects of the promoted business models. Finally, we discuss the implica…

What is your acceptable commute time?

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Have you ever thought what is your acceptable commute time? A Google search on the term “acceptable commute time” returns a long list of people’s posts discussing (views on) their acceptable commute time (see here). It is true that quite frequently people consider a potential destination as not realistic choice compared to others, because it would require too much time to reach it or simply as people put it “this is too far for me”.  
The obvious question that arises here is how someone decides how far is too far to travel to a particular destination. In other words, do people identify an acceptable travel time for each trip they want to make?

We explored this question in two articles. In the first article, published in Journal of Transport Geography (2015, available here) we developed the theoretical concept of acceptable travel time and explored the validity of the concept based on semi-structured in-depth interviews with a stratified, according to commuting mode, random sample of 20 …

New article: Towards a quantitative method to analyze the long-term innovation diffusion of automated vehicles technology using system dynamics

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This paper presents a novel simulation model that shows the dynamic and complex nature of the innovation system of vehicle automation in a quantitative way. The model simulates the innovation diffusion of automated vehicles (AVs) on the long-term. It looks at the system of AVs from a functional perspective and therefore categorizes this technology into six different levels. Each level is represented by its own fleet size, its own technology maturity and its own average purchase price and utility. These components form the core of the model. The feedback loops between the components form a dynamic behavior that influences the diffusion of AVs. The model was applied to the Netherlands both for a base and an optimistic scenario (strong political support and technology development) named “AV in-bloom”. In these experiments, we found that the system is highly uncertain with market penetration varying greatly with the scenarios and policies adopted. Having an ‘AV in bloom’ eco-system for AV…

New article: Built Environment, Travel Attitudes and Travel Behaviour. Quasi-Longitudinal Analysis of Links in the Case of Greeks Relocating from US to Greece

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In this study, the possible causal links between the built environment, travel attitudes and travel behaviour of people that have moved between totally different urban and transportation contexts were investigated. A quasi-longitudinal design was developed to collect data about the perceived neighbourhood characteristics, neighbourhood preferences, travel attitudes and changes in car, walking and bicycle usage of 51 Greeks who relocated from the US to Greece. Variable reduction techniques were applied prior to developing our models because of the small sample size. The results of this study offer support for a causal relationship between the built environment and travel behaviour identified in the existing literature. For instance, longer travel time to city center was associated with higher car use, higher density neighbourhoods and increased accessibility to local amenities were associated with increased bike use and better access to a district shopping center was associated with mo…