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

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

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 and April 2016, researchers conducted interviews with experts to gain a stronger understanding about challenges and benefits of data sharing between private companies and public agencies. Key findings from the expert interviews include the critical need to protect user privacy; the potential to use data sharing to address integrated corridor and congestion management as well as various pricing strategies during peak hours; along with the potential benefits for improving coordination between the public and private sectors. In March 2016, researchers surveyed 130 people who had downloaded the RideScout app to evaluate attitudes and perceptions toward mobile apps, travel behavior, and modal shift. The goal was to enhance understanding of how the multimodal apps were impacting the transportation behavior. The survey did found that respondents used multimodal apps in ways that yielded travel that was less energy intensive and more supportive of public transit. Looking to the future, smartphone applications and more specifically multimodal aggregators, may offer the potential for transportation planners and policymakers to enhance their understanding of multimodal travel behavior, share data, enhance collaboration, and identify opportunities for public-private partnerships....
Driving Down GHG Emissions with Carsharing

Driving Down GHG Emissions with Carsharing

Drive, ride or share? It’s a question more people are asking themselves as transportation options are rapidly evolving. But what does it mean for road congestion and the environment? In the first-ever North American one-way carsharing impact study, the Transportation Sustainability Research Center (TSRC) reveals that car2go has a substantive impact on improving urban mobility and reducing greenhouse gas emissions. To read the rest of the article, visit...

Zero- and Low-Emission Vehicles in U.S. Carsharing Fleets: Impacts of Exposure on Member Perceptions

Authors: Susan Shaheen, Elliot Martin, Apaar Bansal Date Published: September 22, 2015 Abstract: The California Zero-Emission Vehicle (ZEV) Mandate, adopted in 1990, was aimed at increasing the sale and dissemination of low- or zero-emission vehicles throughout the California auto market. ZEVs include plug-in hybrid vehicles (PHVs) and all-electric vehicles (EVs). In an attempt to accelerate the exposure of ZEVs in the general population, in 2001, additional credits were allotted to automakers in return for placing ZEVs into transportation networks, such as carsharing fleets. This policy is set to end in 2018. This white paper presents the results of a study that evaluated the impacts of ZEV exposure on United States carsharing users. Two surveys were administered to members of several carsharing organizations that use PHVs or EVs in their fleet including: car2go, DriveNow, eGo, and Zipcar. One was a control group survey, which was comprised of 1,742 respondents, and the other was an experimental group survey, covering 1,920 respondents. The results support that exposure to PHVs or EVs through carsharing has influenced customer ZEV perceptions to be more positive and has commensurately increased the propensity for an individual to buy a ZEV. Furthermore, the data suggest that certain socio-demographic groups, such as younger people and women, are more interested in purchasing these vehicles after using them in carsharing....

Automated Speed Enforcement for California: A Review of Legal and Institutional Issues

Authors: Caroline J. Rodier, Ph.D, Susan A. Shaheen, Ph.D, Ellen Cavanagh Published: February 21, 2007 Abstract: Excessive speed is considered to be a major contributing factor to motor vehicle crashes and is thus an important focus of highway enforcement efforts. Automated speed enforcement programs have been widely applied outside the U.S. to address speeding-related safety problems. This literature review explores the potential benefits and barriers to implementing automated speed enforcement programs in the U.S. by examining the large body of literature on automated enforcement programs, including red-light and speed programs....

Travel of Diverse Populations: Literature Review

Authors: Evelyn Blumenberg, Moira Donahue, Susan Handy, Kristin Lovejoy, Caroline Rodier, Susan Shaheen, James Volker Published: September, 2007 Abstract: California is in the midst of a demographic transformation. According to the 2000 U.S. Census, nearly 30 percent of the California population is now foreign-born, more than 50 percent of the population belongs to a minority group, and the elderly (those 65 and older) comprise 11 percent of the population. Demographic forecasts suggest that these patterns will continue. California will continue to attract immigrants from throughout the world and will become increasingly diverse, racially and ethnically, with whites declining as a share of the population from 54 percent in 1995 to 30 to 34 percent in 2025, according to one forecast (Thomas and Deakin 2001). The percentage of seniors will also continue its upward trajectory in the coming decades, reaching over 13 percent by 2025 (Thomas and Deakin 2001). This demographic transformation raises an important question for transportation planners in the state: How can we ensure that the kinds of transportation systems and services we provide adequately meet the needs of our increasingly diverse population? To answer that question, planners need a better understanding of the travel behavior of diverse demographic groups within the state. As a part of a larger project studying the needs, constraints, attitudes, and preferences that influence travel choices and the outcomes of those travel choices among diverse groups in California, this report provides a review of existing literature on the travel behavior among specific demographic groups. In particular, this report provides a review of what is currently known about the travel patterns and transportation needs of the...