Reliable corridor level travel time estimation using probe vehicle data

Document Type

Journal Article

Publication Date


Subject Area

place - asia, place - urban, mode - bus, ridership - mode choice, technology - intelligent transport systems, technology - geographic information systems


Wi-Fi, Bluetooth, GPS, travel time, linear regression, ANN


Travel time information assists road users in making informed travel decisions such as mode choice, route choice and/or time of travel. This study explores the use of GPS data from buses and Wi-Fi and Bluetooth data from a sample of vehicles, for accurate estimation of the travel time of all vehicles on the roadway. A 5.5 km road stretch in Chennai city was selected as study stretch and data were collected for a week’s period. The present study develops models using linear regression and artificial neural network (ANN) techniquesFto estimate stream travel time using bus travel time obtained from GPS. ANN performed better compared to the linear regression for all sizes of segments. Most of the Indian cities have an integrated network of buses traveling on most of the road segments with on-board tracking devices, making this a useful development for real-time travel time estimation.


Permission to publish the abstract has been given by Taylor&Francis, copyright remains with them.