Evaluation of Roadway Reallocation Projects: Designing Better Strategies for Data Collection and Economic and Safety Evaluations

In the last decade there has been a national trend toward projects that involve roadway space reallocation across modes. Many of these projects may include road diets and are typically very controversial when automobile travel lanes and/or curbside parking are proposed for removal. Cities and federal agencies typically evaluate roadway changes utilizing level of service measures. Traditional level of service (LOS) for automobile traffic is based on travel time and congestion levels. New measures for evaluating street performance for non-automobile modes including transit service, bicyclists and pedestrians have been proposed recently but a recent review indicates that these measures may not be sensitive or useful in their application for non-motorized modes. Safety impacts can also play a decisive role in roadway reallocation projects. However, economic analyses are ordinarily not performed. This research reviews before and after multimodal performance of several roadway reallocation projects. Planners and decision makers lack a consistent framework to evaluate costs and benefits of non-motorized facilities. While the construction cost of new pedestrian and bicycle facilities or roadway allocations is relatively easy to estimate, the evaluation of the resulting benefits is typically not straightforward and usually has a high degree of uncertainty. In addition, some benefits are achieved in the long-term, e.g. property values or reduction of crashes, and data availability is usually a significant constraint. The goal of this research is to provide methodologies to better evaluate investments in transportation infrastructure that support non-motorized modes and livable communities. By carefully reviewing the existing literature and recent roadway reallocation projects in Portland, this research will develop strategies to plan for before and after data collection efforts and propose methodologies to evaluate non-motorized facility improvements. Lessons learned from recent roadway reallocation projects will be documented as well as best practices to tackle multimodal and economic evaluations within the typical data, budget, and time availability constraints.


  • English


  • Status: Active
  • Contract Numbers:

    NITC 887

  • Sponsor Organizations:

    Portland State University

    Department of Civil and Environmental Engineering
    P.O. Box 751
    Portland, OR  United States  97207

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590

    City of Portland

    1120 SW Fifth Avenue, Suite 800
    Portland, Oregon  United States  97204
  • Managing Organizations:

    TREC at Portland State University

    1900 SW Fourth Ave, Suite 175
    P.O. Box 751
    Portland, Oregon  United States  97201
  • Project Managers:

    Hagedorn, Hau

  • Performing Organizations:

    Portland State University

    Department of Civil and Environmental Engineering
    P.O. Box 751
    Portland, OR  United States  97207
  • Principal Investigators:

    Figliozzi, Miguel

  • Start Date: 20150901
  • Expected Completion Date: 20170630
  • Actual Completion Date: 20171127
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01607730
  • Record Type: Research project
  • Source Agency: National Institute for Transportation and Communities
  • Contract Numbers: NITC 887
  • Files: UTC, RiP
  • Created Date: Aug 17 2016 5:23PM