District Wide Traffic Safety and Operational Study

This contract involved traffic safety and operational studies for over Safety Issues twenty-five locations throughout the District. Study sites ranged from rural intersections to multiple-mile urban corridors. Sites were selected for study by the Florida Department of Transportation District Two based on historical crashes or reported operational deficiencies.

Study tasks included the collection and reduction of 7-day continuous counts, 24-hour isolated counts and 8-hour turning movement counts. Collected traffic data was adjusted for seasonal fluctuations and was used to evaluate existing operations and capacity constraints as well as future (projected traffic) anticipated operations. A thorough multiple year historic collision analysis was also conducted for each location. Each study included a detailed field review to record geometrics, traffic control devices, signal timings, signing and pavement markings, sight distance obstructions, and pedestrian features. Qualitative Assessments of each site were completed during peak and off-peak traffic periods to note how current geometrics, traffic control devices, and traffic congestion affect driver behavior and public safety. Operational evaluations were conducted through the use of accepted methods including software programs such as, Highway Capacity Software (HCS2000), SIGNAL 97,and SIGNAL 2000, SYNCHRO, PASSER, Transft-7F, and SIDRA. Traffic

Design recommendations were provided for each location to improve safety or operations. To justify safety improvements for safety funding, locations where crashes were prevalent were subjected to a benefit-cost assessment.

Additional studies conducted under this contract included signal warrant studies, spot speed studies and safe curve speed studies. public involvement meetings and documents were also conducted and prepared for select studies under this contract.