Traffic information providing system

A system for providing an information-provided vehicle equipped with a navigation system with traffic information, the system capable of providing the vehicle with the traffic information reflecting the real traffic condition in each traveling direction even if the vehicle travels in either branch direction in a branch point area including the branch point. It comprises a traffic information server 1 and the traffic information server 1 includes a means 21 for collecting information on the time required for traveling in the branch point area, which is composed of an pre-branch route and a plurality of post-branch routes branching off from the pre-branch route at the branch point, from an information providing vehicle 3b and a means 22 for generating information on the time required for traveling in each traveling direction in the branch point area on the basis of the information. Upon receiving a request for providing the traffic information from the navigation system 4 of the information-provided vehicle 3a, the traffic information server 1 transmits the information on the time required for traveling in each traveling direction or the information on the time required for traveling on each route in the branch point area generated from the above information.