A self-contained vehicular traffic travel time information system for a vehicle in an inter-vehicle ad-hoc network includes an on-board vehicular broadcasting unit for communicating with other vehicles within the inter-vehicle ad hoc network. A positioning device identifies the vehicle's position throughout a course of travel. An on-board vehicle processing unit stores road segments throughout the vehicle path of travel. The on-board vehicle processing unit determines a starting position and an ending position for each respective road segment. A length of time for traveling through each respective road segment is determined. A memory storage device stores the segmented road portions and the time of travel associated with each respective road segment. The on-board vehicular broadcasting unit disseminates the determined travel times of recently traveled road segments via a broadcast message to other vehicles within the inter-vehicle ad hoc network.