The CARFAX road traffic information system
Abstract
A description of the development work and field trials which led to the completion of the dedicated traffic information service "CARFAX' is presented. The system employs a single medium frequency channel, and involves a network of low powered transmitters that operate in time division multiplex to provide traffic announcements. A description of the network distribution, equipment test, results and future system utilization is included.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1984
- Bibcode:
- 1984STIN...8422818S
- Keywords:
-
- Automobiles;
- Broadcasting;
- Communication Networks;
- Evaluation;
- Radio Equipment;
- Accident Prevention;
- Forecasting;
- Optimization;
- Radio Frequencies;
- Radio Frequency Interference;
- Radio Receivers;
- Radio Transmitters;
- Time Division Multiple Access;
- Communications and Radar