Title :
Transit vehicles as traffic probe sensors
Author :
Cathey, F.W. ; Dailey, D.J.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
We present new algorithms that use transit vehicles as probes for determining traffic speeds and travel times along freeways and other primary arterials. We describe the use of vehicle locations produced by an automatic vehicle location (AVL) system, the King County Metro Transit AVL System, to construct "speed sensors" on every road segment over which transit vehicles travel. We present the resulting estimates of speed and use that data to estimate travel times
Keywords :
Kalman filters; geographic information systems; road traffic; traffic control; traffic engineering computing; transportation; Kalman filter; automatic vehicle location; bus; geographic information system; road traffic control; speed sensor; traffic speeds; transit vehicles; travel times; Acceleration; Databases; Geographic Information Systems; Monitoring; Probes; Road vehicles; Scheduling; Space exploration; Telecommunication traffic; Velocity measurement;
Conference_Titel :
Intelligent Transportation Systems, 2001. Proceedings. 2001 IEEE
Conference_Location :
Oakland, CA
Print_ISBN :
0-7803-7194-1
DOI :
10.1109/ITSC.2001.948724
