Transportation policymakers are often interested in implementing policies that will create mode shift in order to realize a variety of benefits including congestion mitigation, reduced road wear, emission reductions, and economic development. To help develop successful mode shift policies and projects, a better understanding is required of both why successful mode shifts occur, and what role public policy can play in the process. The objectives of this exercise are to identify public mode shift policies, explore what contributed to their success or failure, and to derive lessons learned.
To compile a list of projects backed by public policy that encouraged mode shift the research team used its knowledge of mode shift projects across the country, internet research and a literature review, and interviews with subject-matter experts. In 2014, a methodology was developed and implemented to select projects for case study development. The research selected the following six case studies:
- Albany Express Barge Service
- Palouse River and Coulee City Rail System
- The Heartland Corridor
- The Crescent Corridor
- Chicago Region Environmental and Transportation Efficiency Program (CREATE)
- Truck Route Management and Community Impact Reduction Study
In 2018, the research team revisited each of the case studies. The purpose was to examine how the policy or project had fared over time as the project matured or became more complete. The research team left the results of the original case studies intact, and presented the results of updates in two-part epilogues. The first part of the epilogue focuses on recent developments since the original case studies, while the second part highlights the lessons learned.
This chapter includes four sections. The first section documents the methods employed to identify case study projects. The second section presents a compilation of candidate projects and the case study selection methodology. The next sections present the overview, analysis, results, and conclusions pertaining to individual case studies.