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                NCHRP Report 633: Impact of Shoulder Width and Median Width on Safety
Publication Information
              Publication External Link:NCHRP Report 633: Impact of Shoulder Width and Median Width on Safety
              Publication Type:Technical Report
                      Abstract:This report contains the findings of research performed to quantify the safety and operational impacts of design element trade-offs and their associated risks. The report details the research performed and includes specific recommended crash prediction models and Accident Modification Factors (AMFs) for shoulder width and median width on rural four-lane roads. Thus, the report will be of immediate interest to engineers in state highway agencies responsible for geometric design and traffic operations and safety.
              Publishing Date:January 2009
                                                  FHWA Program(s):Research
              Safety
              AMRP Program(s):Safety Data and Analysis
              FHWA Activities:Highway Safety Information System
              Subject Area:Safety and Human Factors U.S. DEPARTMENT OF TRANSPORTATION

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