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Smart motorways

All lane running schemes

All lane running schemes permanently remove the hard shoulder and convert it into a running lane.

On these types of motorway, lane one (formerly the hard shoulder) is only closed to traffic in the event of an incident.

Controlled motorway

Controlled motorways have three or more lanes with variable speed limits, but retains a hard shoulder. The hard shoulder should only be used in a genuine emergency

Dynamic hard shoulder running schemes

Dynamic hard shoulder running involves opening the hard shoulder as a running lane to traffic at busy periods to ease congestion.


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smart_motorways.txt · Last modified: 2021/11/02 09:46 by richard