Multimodal Corridor Access Management Planning Methods, Guidelines, Best Practices, and Operational Impacts

The proliferation of access points and lack of adequate supporting street networks have significantly reduced the safety and efficiency of our nation's highways. To address these issues, a growing number of state and regional transportation agencies across the United States are engaging in corridor access management planning as a basis for retrofitting corridors to address access management and multimodal needs and upgrade arterial performance. These corridor plans incorporate a number of tools that include both regulatory (e.g., overlay districts) and design (e.g., driveway spacing) elements. Some states, including Michigan, New York, Arizona, Minnesota, and Kansas, rely heavily on corridor management plans as a means of advancing the safety and efficiency of their highway system and overcoming access management problems at the local level. In addition, there is increasing recognition that the location, design, and management of access to and from major roadways must serve all transportation modes and achieve an appropriate balance among those modes. Major urban roadways must accommodate many types of vehicles--buses, passenger vehicles, trucks, and sometimes rail transit--while also accommodating pedestrians and bicyclists. However, few states have adequate guidance on what constitutes an effective multimodal corridor access management plan, or how to facilitate the actions needed to implement the plan. As a result, the plans may not adequately address different types of arterials and contexts. Research also suggests that a clear implementation strategy is needed. Without such a strategy, the plans may never be implemented or may be undermined by inconsistent decisions and dissension among the implementing agencies. One solution is to provide effective guidance to state transportation agencies and local governments on how to develop and implement a multimodal corridor access management plan that coordinates the various modal considerations and integrates transportation, land use, and network planning considerations along major arterial corridors. There is a far more limited understanding of the operational impacts of access management (particularly with treatments in combination). Although improvements in travel speed and traffic flow have been documented, there is a need to better understand the circumstances under which access management treatments have a positive operational impact. There is also a need to better understand the impacts of multimodal accommodations on arterial access management. Specifically, there is a need to understand how improvements in access management relate to average travel speed, travel time reliability, and preserved highway capacity. The objectives of the research are to identify and document current best practices for multimodal access planning and design along major highway corridors; develop examples showing how to effectively accommodate bus rapid transit and local bus service, as well as pedestrians, bicyclists, and autos in the location, design, and management of access; develop methodological guidance on multimodal access management planning and implementation methods; present the results in the form of multimodal access management guidelines and practices for specific highway functional classes; and identify the expected operational impacts of access management treatments with respect to a range of access related variables along various urban street segments. This operational impact research effort should build, calibrate, and validate simulation models to provide agencies with a simple method for determining the effect of a range of access management guidelines on capacity of urban street corridors. The final report will provide a clear, step-by-step framework for the planning process, including: corridor designation and partnering agreements; data collection and analysis; alternatives analysis and plan development; policy analysis and implementation planning; public involvement best practices; and funding strategies. The report will also include tools that can be directly applied by state transportation agencies in coordination with local governments and regional planning agencies, such as: model scope of services, model intergovernmental agreement, checklists for assessing and updating multimodal access management policies, design criteria, and regulations, and model cross-access agreement and sample access permit with alternative access conditions.


  • English


  • Status: Proposed
  • Contract Numbers:

    Project 03-120

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Reynaud, David

  • Start Date: 20141116
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 37559

Subject/Index Terms

Filing Info

  • Accession Number: 01543519
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 03-120
  • Files: TRB, RiP
  • Created Date: Nov 17 2014 1:01AM