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

fYear

2006

fDate

17-20 Sept. 2006

Firstpage

1263

Lastpage

1268

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ITSC.2006.1707396

Filename

1707396