Bottlenecks on Florida’s SIS: Year 2011

"This study presents a methodology to identify bottlenecks on Florida’s Strategic Intermodal System (SIS) using vehicle probe data and travel time reliability measures. The vehicle probe data, obtained from INRIX, provided travel speed on roadways for an entire year at five-minute interval. Travel time reliability is a measure of consistency in travel time and is being encouraged by FHWA as a measure for managing and operating transportation systems. The top bottlenecks at the statewide and districtwide level are identified. This methodology can be used to update the bottleneck locations on Florida’s SIS with the latest vehicle probe data on an annual basis."
-Taken from page one