Motorway Incident Detection and Automatic Signalling: Difference between revisions

Revision as of 17:32, 31 December 2007

Revision as of 18:32, 31 December 2007

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'''Motorway Incident Detection and Automatic Signalling''', usually abbreviated to '''MIDAS''', is a distributed network of [[traffic]] [[sensor]]s which are designed to set [[variable message sign]]s and advisory speed limits with little human intervention. On the M25 and [[M42 motorway]]s, the MIDAS helps set mandatory variable speed limit signs as part of the ''controlled motorway scheme''.

It is presently ([[2006]]) installed on several sections of the United Kingdom's busiest motorways, such as the congested western stretch of the [[M25 motorway]] and much of the [[M60 motorway]] around [[Manchester]], the Birmingham box (M6, M5 and M42) and the system has successfully reduced accidents .<ref name="hacost">{{cite_web|url=http://www.ha-research.co.uk/projects/index.php?id=437|title=Cost effectiveness of MIDAS|publisher=Highways Agency |accessdate =2007-01-07}}</ref>

The system replaced the ''Automatic Incident Detection (AID)'' system which was trialled in 1989 on an 83 km section of the [[M1 motorway]]. MIDAS was first installed on the M25 in 1997, after this section already had the variable speed limit (''controlled motorway'') scheme.

By March 2006, the [[Highways Agency]] aims to have MIDAS installed on more than 910km of the English motorway network.

The system replaced the '''Automatic Incident Detection (AID)''' system which was trialled in 1989 on an {{convert|83 |km|0}} section of the [[M1 motorway]].<ref name="hacost" /> MIDAS was first installed on the M25 in 1997, after this section already had the [[variable speed limit]] (''[[controlled motorway'']]) scheme.<ref name="hacost" />

By March 2006, the [[Highways Agency]] aims to have MIDAS installed on more than 910km{{convert|910|km|0}} of the English motorway network.{{specify}}

==See also==

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==References==

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[[Category:Car safety]]