Title :
Development of an ITS data archive application for improving freeway travel time estimation
Author :
Kothuri, Sirisha M. ; Tufte, Kristin ; Ahn, Soyoung ; Bertini, Robert L.
Author_Institution :
Dept. of Civil & Environ. Eng., Portland State Univ., OR
Abstract :
The dissemination of travel time information has become crucial with the advent of ATIS. This paper summarizes the results of a comparative analysis between two travel time algorithms applied to archived loop detector data. Travel time estimates derived from the algorithms are compared to ground truth probe vehicle data. Our results indicate that Coifman´s algorithm is more accurate for estimating travel times than a standard segment midpoint algorithm. However, the accuracy of the travel time estimates was dependent on the location and spacing of detectors and the location and formation of queues with respect to the detector positioning
Keywords :
estimation theory; traffic information systems; transportation; Coifman algorithm; ITS data archive application development; advanced traveler information systems; archived loop detector data; freeway travel time estimation; ground truth probe vehicle data; Communication system operations and management; Detectors; Equations; Global Positioning System; Intelligent transportation systems; Intelligent vehicles; Portals; Probes; Road vehicles; Traffic control;
Conference_Titel :
Intelligent Transportation Systems Conference, 2006. ITSC '06. IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
1-4244-0093-7
Electronic_ISBN :
1-4244-0094-5
DOI :
10.1109/ITSC.2006.1707396
