This part of the study examines the locations of high trends of severe crashes (incapacitating and fatal crashes) on multilane corridors in the state of Florida at two levels, county level and roadway level. The Geographic Information System (GIS) tool, which is used frequently in traffic safety research, was utilized in this study to identify those locations. At the roadway level, seven counties were chosen for the analysis based on their high severe crash trends, metropolitan size and geographical location. Several GIS maps displaying the safety level of multilane corridors in the seven counties were generated. The GIS maps were based on a ranking methodology that the authors developed and which evaluated the safety condition of road segments and signalised intersections separately. The GIS maps were supported by tables which provided the milepoints of the most hazardous locations on the roadways. The results of the roadway level analysis found that the worst corridors were located in Pasco, Pinellas and Hillsborough counties. (Author/publisher)
Samenvatting