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  • Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections

    Creator:
    Kopper, Neil H.
    Abstract:
    Isolated approaches at signalized intersections with posted speed limits of 45 mph or greater generally experience large numbers of rear-end and angle collisions. A combination of less attentive drivers, high operating speeds, and less than ideal intersection characteristics can result in crash frequencies well above expected rates. A number of...
    Resource Type:
    Masters Thesis
    Full Text:
    , determines expected crash frequencies based on intersection configuration, and provides a list of safety

  • Using the predictive method in the 2010 Highway Safety Manual to identify hazardous intersections in Corvallis, OR

    Creator:
    Zhou, Yanfen
    Abstract:
    An intersection, due to its vehicle and pedestrian conflict movements, experiences complex traffic situations that might contribute to crashes. In the city of Corvallis, OR, historically more than 80% of the total crashes have occurred within an intersection or have been designated as intersection-related. It is important to develop a...
    Resource Type:
    Masters Thesis
    Full Text:
    the HSM to analyze the intersection safety in Corvallis, OR and identify high crash intersections

  • The Evaluation of Engineering Treatments for Right-Hook Crashes at Signalized Intersections with Bicycle Traffic

    Creator:
    Warner, Jennifer Lynn
    Abstract:
    A right-hook crash is a bicycle-motor vehicle crash between a right-turning motor vehicle and an adjacent through-moving bicycle. This study focuses on right-hook crashes that occur during the latter stage of the circular green indication at signalized intersections with shared right-turn and through lanes. The overall objective was to evaluate...
    Resource Type:
    Masters Thesis
    Full Text:
    ....................................................................51 3.6 Road and Intersection Geometry

  • Safety and efficiency benefits of traffic signal countdown timers : a driving simulator study

    Creator:
    Islam, Mohammad Rabiul
    Abstract:
    Traffic signal countdown timers (TSCT) are innovative, practical and cost effective technologies with the potential to improve efficiency and safety at signalized intersections. The purpose of these devices is to assist motorists in decision making at signalized intersections with real time signal change information. While successful implementation of these devices...
    Resource Type:
    Dissertation
    Full Text:
    elements of urban road networks, and their efficiency and safety significantly impact the performance of

  • Pedestrian safety at signalized intersections operating the flashing yellow arrow

    Creator:
    Tuss, Halston
    Abstract:
    At signalized intersections, pedestrians are considered to be amongst the most vulnerable. When in the crosswalk at intersections without protected left-turn phasing, pedestrians are particularly at risk from left-turning vehicles. Until recently, a wide variety of indications were in use across the US to indicate a permissive left-turn condition to...
    Resource Type:
    Masters Thesis
    Full Text:
    efficiency and/or safety at the intersection. Choosing the appropriate time to enter the intersection