Electronic Route Guidance System (ERGS) was a 1970s era government sponsored in-vehicle navigation and route guidance system developed by the United States Federal Highway Association.[1] ERGS was the initial stage of a larger research and development effort called the Intelligent Transportation System (ITS).

ERGS was a destination oriented system that required a human driver to enter a destination code into the vehicle system. The vehicle communicated with an instrument intersection where the destination code was decoded and routing information was sent back to the vehicle.[2]

Other international programs included Japan's CACS, which used FR (radio frequency) communication methods, and similar projects in Europe.[1] These programs all used central processing systems with large central computers.[3]

Westerman, Marcel. "IVHS: Route Guidance Systems". JPL's Wireless Communication Reference Website.

References

  1. 1 2 Dong, Wei (September 28, 2011). An overview of in-vehicle route guidance system. Australasian Transport Research Forum. Adelaide, Australia.
  2. ↑ Rosen, D.A.; Mammano, F.J.; Favout, R. (1970). "An electronic route-guidance system for highway vehicles". IEEE Transactions on Vehicular Technology. Institute of Electrical and Electronics Engineers (IEEE). 19 (1): 143–152. doi:10.1109/t-vt.1970.23442. hdl:2027/uc1.c101978778. ISSN 0018-9545.
  3. ↑ Tokuyama, Hideo (1996). "Intelligent Transportation Systems in Japan | FHWA". highways.dot.gov. Archived from the original on 2022-01-21. Retrieved 2022-02-08.


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