Most policies to cut the transportation sector’s CO2 emissions focus on fuel-efficient vehicles, low-carbon fuels, and reductions in vehicle-miles traveled. One strategy that gets less attention but has high potential pay-off is Intelligent Transportation Systems (ITS). An example is...

Many regulatory programs such as environmental regulation are effective only if firms make irreversible investments that reduce the cost of compliance. A firm potentially subject to regulation may therefore behave strategically by not investing, thereby forcing the regulator to void the proposed...

Employment and the journey to work have long been a focus of transportation study. Although today, the work trip accounts for a much smaller share of total trips than it did a few decades ago, there are several reasons why this subject deserves our continued attention. In planning for the...

The nation is about to enter into the second stage of welfare reform with its federal reauthorization within the upcoming year. The first stage of welfare reform started the enactment of the 1996 Personal Responsibility and Work Opportunity Act (PRWORA), which transformed welfare from an income...

Consider a consumer who can choose to travel on a congestible fast mode or on a congestible slow mode. Users who most value time will use the fast mode. A toll on the slow mode can induce some people who initially use that mode to switch to the fast mode. A toll on the slow mode with revenue not...

The major goal of travel behavior research is to understand and model the processes by which people make decisions regarding activities and travel. These decisions, including whether, when, where, and with whom to participate in particular activities, and the choice of mode and route, are...

The San Francisco pedestrian volume modeling process refined the methodology used to develop previous intersection-based models and incorporated variables that were tailored to estimate walking activity in the local urban context. The methodology included two main steps. First, manual and...

In this study, potential vehicle manufacturing costs, lifecycle costs, infrastructure support costs, and emission-related costs are compared for three potential zero-emission vehicle (ZEV) technology development and deployment scenarios. These scenarios include production of mid-sized battery...

Fundamental to the operation of most currently envisioned Intelligent Vehicle-Roadway System (IVRS) projects are advanced systems for surveillance, control and management of integrated freeway and arterial networks. A major concern in the development of such Smart Roads, and the focus of this...

This paper documents an application of panel, or longitudinal data collection in the evaluation of a TSM (Transportation Systems Management) demonstration project. The project was a four-week demonstration of staggered work hours in downtown Honolulu during February--March 1988. The 4 wave panel...