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Comprehensive Analytical Investigation Of The Safety Of Unsignalized Intersections, Kirolos Haleem
Comprehensive Analytical Investigation Of The Safety Of Unsignalized Intersections, Kirolos Haleem
Electronic Theses and Dissertations
According to documented statistics, intersections are among the most hazardous locations on roadway systems. Many studies have extensively analyzed safety of signalized intersections, but did not put their major focus on the most frequent type of intersections, unsignalized intersections. Unsignalized intersections are those intersections with stop control, yield control and no traffic control. Unsignalized intersections can be differentiated from their signalized counterparts in that their operational functions take place without the presence of a traffic signal. In this dissertation, multiple approaches of analyzing safety at unsignalized intersections were conducted. This was investigated in this study by analyzing total crashes, the …
Reduced Visibility Related Crashes In Florida: Crash Characteristics, Spatial Analysis And Injury Severity, Al-Ahad Ekram
Reduced Visibility Related Crashes In Florida: Crash Characteristics, Spatial Analysis And Injury Severity, Al-Ahad Ekram
Electronic Theses and Dissertations
Roadway crashes related to vision obstruction due to fog/smoke (FS) conditions constitute a challenge for traffic engineers. Previous research efforts mostly concentrated on the snow and rain related crashes. Statistics show that Florida is among the top three states in terms of crashes due to vision obstruction by FS. This research culminated in a comprehensive study of fog and smoke related crashes in the state of Florida. The analysis took into account the crashes that occurred between 2003 and 2007 on Florida state roads. Spatial analysis and injury severity analysis have been conducted and significant results have been identified. The …