The Road Effect Zone GIS Model

Road and highways have measurable effects on the surrounding natural and human systems. As our knowledge of road effects grow, so will the potential for developing evaluative tools that effectively describe the cumulative road effect zone, as well as its component parts. There are important guidelines to consider as this idea evolves. These include the fact that the road effect zone is not a simple 2-dimensional shape with a fixed radius surrounding a given roadway, but rather a 3-dimensional envelope or gradient of effects dissipating with distance and affected by topography and other physical factors. In addition, the effects may or may not interact, they may co-exist, and they may negate each other. The effects will be felt by different systems in different ways and across varying scales (extents and granularities). Similarly, responsible planning and regulatory bodies may intersect with parts or all of the zone, with different statutes coming into play at different times and places. One way to begin understanding and dealing with the multiple effects of roads and road systems is to include the effects into a single decision space. The geographically explicit nature of the road effect zone concept makes it a useful tool in road and highway planning as well as land-use planning. Using a previous state transportation commission (STC) Faculty Research Grant to Alison Berry, investigator Shilling and technician Heidi Schott developed conceptual models describing the road effect zone. Presentations of the conceptual models to Caltrans and non-agency transportation planners, engineers and biologists were greeted with the uniform response of "when can we get this in global information systems (GIS)?" This will require a large undertaking, the first step of which is to develop a proof of concept that can form the basis for a proposal to fully develop this tool.


    • English


    • Status: Active
    • Contract Numbers:



    • Sponsor Organizations:

      California Department of Transportation

      1227 O Street
      Sacramento, CA  United States  95843
    • Performing Organizations:

      Sustainable Transportation Center/ITS-Davis

      University of California, Davis
      Davis, CA  United States  95616
    • Principal Investigators:

      Shilling, Fraser

    • Start Date: 20091001
    • Expected Completion Date: 0
    • Actual Completion Date: 20110930
    • Source Data: RiP Project 28191

    Subject/Index Terms

    Filing Info

    • Accession Number: 01468016
    • Record Type: Research project
    • Source Agency: University of California Transportation Center/Institute of Transportation Studies
    • Contract Numbers: DTRT06-G-0022, S03-2
    • Files: UTC, RiP, STATEDOT
    • Created Date: Jan 3 2013 3:43PM