Assessing the Potential for Densification and Reduction of Vehicle Miles Traveled in Areas Without Rail

Status

Complete

Project Timeline

June 21, 2022 - October 31, 2023

Principal Investigator

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Campus(es)

UC Davis, UC Irvine

Project Summary

While transportation infrastructure and efficiency should inform where to build more housing, little is known about how housing allocation and development processes can be coordinated more systematically with transportation. To date, transportation-housing coordination has often relied on the densification of areas near rail transit stations, putting heavy
burdens on these locations and their residents. Much less attention has been paid to how densification can be achieved in a more equitable manner by encompassing other sites.

This research seeks to better understand equity issues and other challenges that may arise in pursuing transportation-informed densification. The research includes two components: 1) a scenario analysis of the potential impacts of SB 743 that highlights equity concerns, as well as difficulties in identifying low vehicle miles traveled locations, and 2) a qualitative, in-depth investigation, including interviews with policy experts, creators, implementers, and advocates that explore ways to achieve more inclusive densification of non-rail transit areas, which have long been neglected in the literature. Overall, the findings suggest that transportation-informed densification is a challenging process, and this is particularly true when it comes to implementation and inclusive place-making. More needs to be known about how densification can take place in a way that promotes diversity, equity, and inclusion rather than causing disproportionate impacts on disadvantaged communities and their residents.

research report

Is Micromobility Being Used in Place of Car Trips in Daily Travel (or “Trip Chains”)?

Publication Date

September 1, 2024

Author(s)

Hossain Mohiuddin, Dillon Fitch-Polse

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Abstract

To understand the extent to which micromobility services such as bike-share and scooter-share are enabling car-lightlifestyles by replacing driving, this report explores the trip-chaining patterns of micromobility users. The research team used travel diary data collected from micromobility users in 48 cities across the US. Findings from their analysis shows that a considerable portion of car owners are leaving their cars at home when using micromobility. This suggests that, for a subset of users, micromobility can form part of a car-free or car-light day of travel, despite having a car available. In addition, micromobility services are supportive of complex trip chains that include both work and non-work trips with reduced reliance on cars. The use of micromobility services tends to entirely replace shorter car trips on shorter-length trip chains.

Our Experts

Nicholas Marantz

Associate Professor, Department of Urban Planning and Public Policy, UC Irvine

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Jae Hong Kim (lead), Jesus Barajas, Douglas Houston, Nicholas Marantz

UC Campus(es):

UC Davis, UC Irvine

Research Team:

Nicholas Marantz (lead), Jae Hong Kim, Douglas Houston, Moira O'Neill, Eric Biber

UC Campus(es):

UC Irvine

Research Team:

Nicholas Marantz (lead), Douglas Houston

UC Campus(es):

UC Irvine

Our Experts

Michael Manville

Professor, Department of Urban Planning, UCLA

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Safety, Public Health, & Mobility Justice Transportation Economics, Funding, & Finance Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Michael Manville (lead)

UC Campus(es):

UCLA

Research Team:

Paavo Monkkonen (lead), Shane Phillips, Michael Manville

UC Campus(es):

UCLA

Research Team:

Michael Manville (lead), Gregory Pierce

UC Campus(es):

UCLA

Our Experts

Pei (Peggy) Wang

Research Engineer, California Partners for Advanced Transportation Technology (PATH), UC Berkeley

Areas of Expertise

Intelligent Transportation Systems, Emerging Technologies, & Big Data Safety, Public Health, & Mobility Justice Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Pei (Peggy) Wang (lead), Rui Lin

UC Campus(es):

UC Berkeley

Research Team:

Pei (Peggy) Wang (lead), Rui Lin

UC Campus(es):

UC Berkeley

Research Team:

Pei (Peggy) Wang (lead)

UC Campus(es):

UC Berkeley

Our Experts

Joan Walker

Professor, Department of Civil and Environmental Engineering, UC Berkeley

Areas of Expertise

Intelligent Transportation Systems, Emerging Technologies, & Big Data Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Jane Macfarlane (lead), Joan Walker

UC Campus(es):

UC Berkeley

Research Team:

Joan Walker (lead), Johanna Zmud

UC Campus(es):

UC Berkeley

Our Experts

Jeffrey M. Vincent

Director, Public Infrastructure Initiatives, UC Berkeley

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Jeffrey M. Vincent (lead), Sandra Mukasa, Jamie Albrecht

UC Campus(es):

UC Berkeley

Our Experts

Jamey Volker

Professional Researcher, National Center for Sustainable Transportation, UC Davis

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Adam Millard-Ball (lead), Jamey Volker, Elisa Barbour

UC Campus(es):

UC Davis, UCLA

Research Team:

Jamey Volker (lead)

UC Campus(es):

UC Davis, UC Irvine

Our Experts

Brian D. Taylor

Professor, Department of Urban Planning and Public Policy, UCLA

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Safety, Public Health, & Mobility Justice Transportation Economics, Funding, & Finance Travel Behavior, Land Use, & the Built Environment

Recent Projects

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Research Team:

Brian D. Taylor (lead), Susan Pike

UC Campus(es):

UC Davis, UCLA

Research Team:

Brian D. Taylor (lead), John Gahbauer, Juan Matute

UC Campus(es):

UCLA