To examine the relationship of ramp design to truck accident rates, this paper presents an analysis of truck accidents in Washington State, plus a comparison to limited data from Colorado and California. The authors group freeway truck accidents by ramp type, accident type, and by four conflict areas of each merge or diverge ramp. The authors then compare these groups on the basis of truck accidents per location and per truck-mile of travel. The authors found that truck accident frequencies and rates were not significantly different by ramp type alone, but were significantly different by conflict area and accident type, both between and within ramp types. The authors also found that high volume ramps had lower rates of truck accidents per truck-mile of travel.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Truck Accidents at Freeway Ramps: Data Analysis and High-Risk Site Identification


    Contributors:
    B. N. Janson (author) / W. Awad (author) / J. Robles (author) / J. Kononov (author) / B. Pinkerton (author)

    Publication date :

    1998


    Size :

    18 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    Urban Freeway On-Ramps

    Yi, Hanwen / Mulinazzi, Thomas E. | Transportation Research Record | 2007


    Minnesota tests identification system for freeway ramps

    Anderson, J.W. | Engineering Index Backfile | 1968


    Guidelines for Spacing between Freeway Ramps

    Fitzpatrick, Kay / Porter, Richard J. / Pesti, Geza et al. | Transportation Research Record | 2011