TrafficTraffic management is the headache for the civil transportation management authorities. People are struggling with the traffic jam everyday. Up to now, at least in Shanghai, the traffic programs in FM radio are still the preferred source for the traffic update. It has a great value to allow the drivers on the go to have the overview insight for the traffic status ahead. TMC (Traffic Message Channel) is invented for this purpose. New delivery channels are emerging that could carry TMC services, including RDS/RDBS, digital radio (DAB), mobile Internet, paging and GSM/GPRS mobile phone networks.
The Dash Express GPS is a promising alternative solution for traffic management. Let us see it in this way. The TMC is a top-down and centralized traffic management approach, and the Dash Express is a flat and distributed traffic management approach. It is for sure that the similar projects will launch if Dash Express is successful.
Both TMC and Dash Express require powerful servers to collect the data of speed and vehicle densities on the road, and send the information back to the drivers via broadcast channels or IP networks.
No comments:
Post a Comment