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The Arizona Department of Transportation (ADOT) Roadway Departure Safety Implementation Plan (RDSIP) has identified tree removal as a feasible countermeasure to reduce roadway departure crash frequency or severity. Previous ADOT work has identified locations for tree removal, and activities to…

The Arizona Department of Transportation (ADOT) Roadway Departure Safety Implementation Plan (RDSIP) has identified tree removal as a feasible countermeasure to reduce roadway departure crash frequency or severity. Previous ADOT work has identified locations for tree removal, and activities to conduct this work are underway. To test the safety effectiveness of removing the trees, ADOT intends to conduct statistically rigorous before-after safety effectiveness analysis to estimate state-specific crash modification factors (CMFs).
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    Title
    • Data Needs for Tree Removal Crash Modification Factors on Arizona State Highways
    Contributors
    Date Created
    2016-07
    Subjects
    Resource Type
  • Text
    • Note
    • numbering
      SPR-721
    • date
      July 2016

    Citation and reuse

    Statement of Responsibility

    Prepared by:
    Elizabeth Wemple, P.E. and Daniel Wu, AICP
    Cambridge Systematics, Inc.

    Christopher Monsere, P.E., Ph.D.
    Portland State University

    Published by:
    Arizona Department of Transportation
    In cooperation with
    US Department of Transportation
    Federal Highway Administration

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