Statewide GIS Mapping of Recurring Congestion Corridors

Recurring congestion occurs when travel demand reaches or exceeds the available roadway capacity. This project developed an interactive geographic information system (GIS) map of the recurring congestion corridors (labeled herein as hotspots) in the state of Maryland. The map allows users to obtain images, turning-movement counts, travel times, and roadway schematics for individual hotspots. The GIS map was also converted to a keyhole mark-up list (KML) file so that it can be used in Google Earth's 3-D environment. It is hoped that this study will lead to a statewide mapping of hotspots and help the Maryland State Highway Administration to allocate the resources necessary for the mitigation and management of recurring congestion.

  • Record URL:
  • Supplemental Notes:
    • This research was supported by a grant from the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    Morgan State University

    Department of Transportation and Urban Infrastructure Studies
    5200 Perring Parkway
    Baltimore, MD  United States  21251

    National Transportation Center

    Morgan State University, 1700 E Cold Spring Lane
    Baltimore, MD  United States  21251

    Maryland State Highway Administration

    Traffic Development and Support Division, 7491 Connelley Drive
    Hanover, MD  United States  21075

    Research and Innovative Technology Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Saka, Anthony A
  • Publication Date: 2009-7


  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Appendices; Maps; Photos; References;
  • Pagination: 51p

Subject/Index Terms

Filing Info

  • Accession Number: 01141330
  • Record Type: Publication
  • Report/Paper Numbers: SHA-AX416A21
  • Contract Numbers: AX416A21
  • Created Date: Oct 1 2009 8:25AM