Transportation |
Automobile use in the developed and developing world is driving environmental, health, and quality of life impacts in and around cities, from greenhouse gas emissions, to pollution and traffic accidents, to long commutes and heavy congestion. Mobility futures in urban areas will need to evolve away from their existing form in order to avoid continued negative outcomes. Autonomous (self-driving) vehicles (AVs) are an emerging technology that may drive much of this change. However, in the absence of suitable policy and planning, widespread use of self-driving vehicles could significantly increase motorized travel and many of its associated impacts.
Part of the urban mobility challenge will require shifting the public’s mode choices toward transit, biking, walking, and vehicle sharing (car-, bike-, or ride- sharing). This requires understanding human motivation at the individual and household scale, as well as understanding the land use patterns at a community and citywide level that are conducive to sustainable forms of urban mobility. At the city and regional scales, it is important to understand which factors shape how cities coordinate sustainable land use-transportation planning and finance in metropolitan planning organizations and across the governments and authorities within their boundaries.
The network’s transportation-related work is concerned with better understanding these, as well as other, multi-scale factors affecting sustainable mobility futures, while also making connections to key societal outcomes and pathways of change.
Active travel—biking and walking instead of driving—is important to both public health and the environment. This study sought to understand the collective influence of built environment features, such as distance … Read more
As improvements in automated vehicles (AVs) make them an increasingly viable mode of transportation, what types of people will use them? This journal brief summarizes results from two surveys that … Read more
Tao, T., Wu, X., Cao, J., Fan, Y., Das, K., & Ramaswami, A. (2020). Exploring the Nonlinear Relationship between the Built Environment and Active Travel in the Twin Cities. Journal … Read more
Zhao, Z, Feiock, R., Shen R., Lou, S., & Fonseca, S. (2020). Explaining Transit Expenses in US Urbanized Areas: Urban Scale, Spatial Form, and Fiscal Capacity. Urban Studies, doi: 10.1177/0042098019892582. … Read more
Tao, T., Wang, J., & Cao, X. (2020). Exploring the non-linear associations between spatial attributes and walking distance to transit, Journal of Transport Geography, 82, 102560. ABSTRACT: When examining environmental … Read more
This journal brief explores the how thresholds related to built environment characteristics affect transportation-related CO2 emissions. Download the two-page journal brief. This brief is adapted from the following peer-reviewed journal … Read more
Does the installation of more bike share stations increase use of the system among members? If so, is the effect the same for all members, in all areas of the … Read more
Nodojomian, A. & K. Kockelman. (2019). How does the built environment affect interest in the ownership and use of self-driving vehicles? Journal of Transport Geography, 78, 115-134. ABSTRACT: Connected and … Read more
Cao, J. & X. Wu. (2019). Exploring the importance of transportation infrastructure and accessibility to satisfaction with urban and suburban neighborhoods: An application of gradient boosting decision trees. Transportation Findings, … Read more
Wang, J. & G. Lindsey. (2019). Do New Bike Share Stations Increase Member Use: A Quasi-Experimental Study. Transportation Research Part A: Policy and Practice, 121, 1-11. ABSTRACT: As the number … Read more
Fan, Y., Brown, R., Das, K., & J. Wolfson. (2019). Understanding Trip Happiness using Smartphone-Based Data: The Effects of Trip- and Person-Level Characteristics. Transport Findings, 10.32866/7124. ABSTRACT: Understanding trip happiness—a … Read more
The localization and decentralization of key infrastructure systems has emerged as a potential strategy for helping cities achieve multiple sustainability outcomes spanning environment, economy, health, wellbeing, and equity. Examples of … Read more
With the ongoing advancement of electric, autonomous, and shared vehicle technologies, how readily will Americans adopt these technologies, and what are their opinions towards them? A survey of 1,426 adult … Read more
Wu., X., Cao., J. & J. Huting. (2018). Using three-factor theory to identify improvement priorities for express and local bus services: An application of regression with dummy variables in the … Read more
The ASEAN nations are a hot spot for rapid urbanization over the next 30 years: Between 2015 and 2050, ASEAN cities are projected to add 205 million new urban residents … Read more
Over the next 30 years, an additional 2.4 billion people are likely to be added to the global urban population. This increase in population will result in a significant expansion … Read more
One of the questions the Department of Transportation officials and state policy-makers face is how much to invest in bicycle infrastructure. Estimating how much bicycling occurs in a state may … Read more
Increasing psychology research suggests that emotional well-being contributes to human development in significant ways. Happier people often are more productive and creative, have better family and social relationships, and in … Read more
Waiting time in transit travel is often perceived negatively, and high-amenity stops and stations are becoming increasingly popular for improving transit riders’ aversion to waiting. Research by Yingling Fan, Associate … Read more
The “future” of self-driving vehicles is quickly becoming reality. As these technologies make their way into the vehicles that get us from point A to point B, they are beginning … Read more