Transcript Slide 1
MAST Effectiveness Study GDOT Fast Forward Billy Bachman, GeoStats Marwan Abboud, Arcadis ITS Georgia Annual Meeting Metro-Atlanta Signal Timing Project Effectiveness of overall program Effectiveness of timing on each corridor Before/After travel time and delay studies MOE: Delay, Emissions, Fuel, $ GPS-equipped probe vehicles Exploring alternative solution: GPS equipped population sample ITS Georgia Annual Meeting ITS Georgia Annual Meeting ITS Georgia Annual Meeting ITS Georgia Annual Meeting ITS Georgia Annual Meeting Speed Profile – Bells Ferry Rd. - All Time Periods ITS Georgia Annual Meeting ITS Georgia Annual Meeting GPS Population Sample – Panel or VII Massive amounts of sec-bysec personal travel data for behavior analysis AND system performance ITS Georgia Annual Meeting ITS Georgia Annual Meeting Time Period Route Distance 1.01 Avg Speed 18.82 Travel Time 3:13 AM Ponce De Leon EB Mid-day Ponce De Leon WB 1.01 17.67 PM Ponce De Leon EB 1.01 PM Ponce De Leon EB PM 2 Stopped Time 0:52 Cong. Time 1:22 3:26 1 0:30 1:31 11.06 5:29 3 2:07 3:48 1.01 15.46 3:55 4 0:11 2:15 Ponce De Leon EB 1.00 17.65 3:24 2 0:06 2:06 Evening Ponce De Leon WB 1.01 21.8 2:47 3 0:08 1:04 Evening Ponce De Leon WB 1.00 19.54 3:04 1 0:01 1:52 Evening Ponce De Leon EB 1.01 23.13 2:37 1 0:05 0:58 Early Morning Ponce De Leon EB 0.98 31.78 1:51 0 0:00 0:00 Early Morning Ponce De Leon WB 0.96 31.14 1:51 0 0:00 0:00 ITS Georgia Annual Meeting Nb. Stops Challenges and Opportunities Privacy protection of instrumented personal vehicles Data reduction for analyzing and reporting system performance Spatial data mining Spatial data integration / fusion ITS Georgia Annual Meeting GPS Probe Vehicles Detailed performance data by route/link/intersection ITS Georgia Annual Meeting Future Research Notes Operational data (GPS, ITS, Mobile phones, etc.) reduction to different spatial scales and network representations Data imputation / cleaning to support various transportation business functions Data mining of operational data to extract / estimate activity patterns Visualization of spatial / temporal data Advance statistical understanding and communication of variance / error and other measures Data collection logistics … does sampling strategy support multiple uses Design of transportation networks to support operations information and to support cross-discipline integration ITS Georgia Annual Meeting