ARTERIAL PERFORMANCE MEASUREMENT WITH WIRELESS

1 The Arterial Travel Time System (ATTS) is described. It accurately estimates travel time 2 distributions in real time, and derives various performance measures, including delay, LOS, 3 emissions. ATTS uses measurements from wireless magnetic sensors. Results from ATTS 4 deployments in Chula Vista, CA, New York City are discussed. With signal phase information, 5 ATTS can help improve signal settings, and identify vehicles running a red light or speeding. 6 7