Browsing by Subject "Transitway Safety Improvement Program"

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    Human Factors for Transitway Safety Improvement: Final Report for Phase 1
    (Center for Transportation Studies, University of Minnesota, 1996-07) Stackhouse, Stirling; Tranchida, Donna
    A human factors study was performed to identify potential cause of accidents at eight Transitway intersections. Data were collected on bus operators' driving behavior, on motorists' behavior at Transitway intersections and on sight distances at the intersections. From some of this data and the accident history at each intersection we calculated accident frequencies based on the number of cars crossing each intersection per year, then related some of our findings to both accident frequency and the immediate causes of reported accidents. An analysis of the data suggested that the following were potentially contributory to intersection accidents: * Two percent of the drivers run the stop signs and about 50% of the drivers use a rolling rather than a full stop. * About 20% of drivers do not look both ways before crossing the Transitway. * Winter weather brings slippery roads and reduced visibility conditions. * The timing for bus actuated traffic lights may not be optimal. * Only five of the 32 sight distances met minimum guidelines. Our broad conclusion was that combinations of the above factors could well contribute to the accidents occurring at the Transitway intersections. Specific recommendations were made for addressing each of the above factors.
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    Human Factors for Transitway Safety Improvement: Final Report for Phase II
    (Center for Transportation Studies, University of Minnesota, 1998-11) Scallen, Stephen; Stackhouse, Stirling
    This report details human factors evaluations of a 3.1 mile dedicated bus route (buses and emergency vehicles) connecting Minneapolis and St. Paul campuses of the University of Minnesota. The dedicated route (Transitway) contains eight intersections. Two intersections are controlled by signal lights activated by the approach of a bus and six intersections are controlled by STOP signs. The motivation for the study was the unexpected increase in the number of accidents when the route was transferred from city streets to the Transitway in March 1992. This human factors initiative was conducted as part of the Transitway Safety Project at the University of Minnesota. Research was conducted in two phases. The present report details Phase II research, a 1998 evaluation of the effectiveness of the safety improvements implemented in the Transitway, using the same measures as those used in Phase I, with the exception that bus driver evaluations were dropped from Phase II research.