TSRC

Exploring Electric Vehicle Carsharing As A Mobility Option for Older Adults: A Case Study of A Senior Adult Community in The San Francisco Bay Area

Shaheen, Susan, PhD
Cano, Lauren
Camel, Madonna
2015

By the year 2030, 57 million people will be over the age of 65 in the United States. Baby Boomers drive approximately 17% more than other age groups and are active well past retirement. This paper examines electric vehicle (EV) carsharing (short-term vehicle access) as a future alternative to vehicle ownership for older adults living on fixed incomes in a gated community to provide reduced cost mobility and eliminate vehicle maintenance hassles. The authors conducted a study of the response to the EV carsharing concept in a senior community in Northern California, between Winter 2009 and...

Mobile Apps and Transportation: A Review of Smartphone Apps and A Study of User Response to Multimodal Traveler Information

Shaheen, Susan
Martin, Elliot
Cohen, Adam
Musunuri, Apoorva
Bhattacharyya, Abhinav
2016

In recent years, technological and social forces have pushed smartphone applications (apps) from the fringe to the mainstream. Understanding the role of transportation apps in urban mobility is important for policy development and transportation planners. This study evaluates the role and impact of multimodal aggregators from a variety of perspectives, including a literature review; a review of the most innovative, disruptive, and highest-rated transportation apps; interviews with experts in the industry, and a user survey of former multimodal aggregator RideScout users. Between February...

Mobility on Demand (MOD) Sandbox Demonstration: BART Integrated Carpool to Transit Access Program, Final Report

Nabti, Jumana
2020

The Bay Area Rapid Transit District (BART), the Metropolitan Transportation Commission (MTC), and Scoop Technologies, Inc. (Scoop) partnered on a program to better integrate carpool access to public transit by matching transit passengers into carpools with a transit station as their destination using the carpool matching app Scoop and providing a seamless way to reserve and pay for highly-coveted parking spaces at BART stations. This report discusses how the project was developed and implemented and the project outcomes and lessons learned.

Carsharing's Impact on Household Vehicle Holdings: Results from a North American Shared-Use Vehicle Survey

Martin, Elliot
Shaheen, Susan A.
Lidicker, Jeffrey
2010

Carsharing has grown considerably in North America during the past decade and has flourished within metropolitan regions across the United States and Canada. The result has been a new transportation landscape, which offers urban residents an alternative to automobility without carownership. As carsharing has expanded, there has been a growing demand to understand its environmental impacts. This paper presents the results of a North American carsharing member survey (N = 6,281). The authors establish a “before-and-after” analytical design with a focus oncarsharing’s impacts on household...

Advanced Air Mobility: Opportunities, Challenges, and Research needsfor the State of California (2023-2030)

Cohen, Adam
Shaheen, Susan, PhD
2024

Advanced air mobility (AAM) is a broad concept that enables consumers access to air mobility, goods delivery, and emergency services through an integrated and connected multimodal transportation network. AAM can provide short-range urban, suburban, and rural flights of about 50-miles and mid-range regional flights up to a several hundred miles. State law delegates responsibility for oversight in aviation primarily to the California Department of Transportation (Caltrans). This white paper presents an overview of the state of the market, such as the aircraft under development and forecast...

Bicycle Evolution in China: From the 1900s to the Present

Zhang, Hua
Shaheen, Susan, PhD
Chen, Xingpeng
2013

This article examines four phases in bicycle evolution in China from initial entry and slow growth (1900s to 1978), to rapid growth (1978 to 1995), bicycle use reduction (1995 to 2002), and policy diversification (2002 to present). Two bicycle innovations, electric bikes, and public bikesharing (the shared use of a bicycle fleet), are also explored in this article. Electric bikes could provide a transitional mode on the pathway to bicycle and public transportation integration or to small battery electric cars. Four lessons have been learned from China’s electric bike experience relevant to...

Shared Micromoblity Policy Toolkit: Docked and Dockless Bike and Scooter Sharing

Shaheen, Susan, PhD
Cohen, Adam
2019

Shared Micromobility – the shared use of a bicycle, scooter, or other low-speed mode – is an innovative transportation strategy that enables users to have short-term access to a mode of transportation on an as-needed basis. Shared micromobility includes various service models and transportation modes that meet the diverse needs of travelers, such as station-based bikesharing (a bicycle picked-up from and returned to any station or kiosk) and dockless bikesharing and scooter sharing (a bicycle or scooter picked up and returned to any location). Early documented impacts of shared...

Behavioral and Sociodemographic Impacts of Carsharing

Shaheen, Susan A.
Pan, Alexandra
2024

The growth of carsharing in North America since the service was first introduced in 1994 has had notable impacts on travel behaviour, including vehicle ownership and modal shift. Existing forms of carsharing (e.g., roundtrip, one-way, and peer-to-peer) alter the conventional cost structure of driving from one of fixed cost to variable cost. Multiple studies have shown that overall, carsharing users increase public transit and non-motorized modal use, with some users also selling their vehicle or postponing future vehicle purchases as a result of being a carsharing member. These modal...

Improving California’s Bay Area Rapid Transit District Connectivity and Access with Segway Human Transporter and Other Low-Speed Mobility Devices

Shaheen, Susan
Rodier, Caroline
Eaken, Amanda
2005

To evaluate the potential for low-speed modes to improve transit access, the EasyConnect field test will offer shared-use Segway Human Transporters (HT), electric bicycles, and bicycles linked to a Bay Area Rapid Transit District station and surrounding employment centers in California. Because of safety concerns, research was conducted to understand the risks associated with these modes and potential risk factors. A review of the safety literature indicates that user error is the major cause of low speed mode crashes, and significant risk factors are poor surface conditions and...

Advancing Social Equity and Congestion Relief: Understanding the Travel Needs of Underserved Populations That Rely on Transportation Network Companies in the San Francisco Bay Area

Shaheen, Susan
Gosselin, Kate
Broader, Jacquelyn
Cohen, Adam
2022

Transportation Network Companies (TNCs) enable travelers to order and pay for rides on-demand using an online application that connects them with drivers using their personal vehicles. While these modes present opportunities to increase individual mobility and access, they also can worsen congestion and increase vehicle emissions. Researchers explored factors impacting the willingness to use pooled TNCs and identified strategies/policies that could be employed to reduce congestion from TNC use. Researchers conducted a literature review, interviews with TNC experts, semi-structured...