Friday, May 14, 2010

How do vms's ( Variable Message Signs) communicate with traffic control?

im talking about the one's in the uk by the wayHow do vms's ( Variable Message Signs) communicate with traffic control?
I believe they are controlled from the area police HQ.


How its actually done i can only guess, a few keystrokes are made then the info is sent to the local controller for that sign. If you look on motorways some grey boxes near signs have a laser warning sticker on them, so perhaps the info comes down via laser on a fibre optic cableHow do vms's ( Variable Message Signs) communicate with traffic control?
VMS can use a variety of technology to communicate with the regional control centre. In the UK they can use the Internet (TCP/IP), GSM, Corporate Network (TCP/IP)
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    1. UnknownApril 1, 2014 at 2:52 AM

      Variable Message Signs(VMS) are intelligent electronic panels for road traffic management that allow text and graphics that combine variables, resulting in a more effective traffic control.

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