Question

Difficulty: MediumSmart Motorways and Active Traffic Management

When driving on a smart motorway or active traffic management section, electronic signs and road infrastructure convey critical regulatory rules. Match each overhead signal or infrastructure feature to its corresponding legal rule or operational status.

  • Overhead gantry displaying a number inside a red circleMandatory, legally enforceable maximum speed limit that must not be exceeded
  • Red 'X' displayed on an electronic gantry above a laneLane is closed to all traffic; entering or proceeding along it is illegal
  • Unlit overhead gantry signals across all open lanesNational speed limit of 70 mph applies under normal motorway regulations
  • Blue sign displaying an orange SOS telephone symbol with distanceEmergency area ahead providing a refuge point equipped with an emergency roadside telephone

Answer

Overhead number in a red circle matches mandatory speed limit; Red 'X' matches closed lane prohibition; Unlit gantry signals match national speed limit of 70 mph; Blue sign with orange SOS telephone matches emergency area refuge point.
Each feature corresponds to its legal designation under the Highway Code: red circles convey mandatory orders (speed limits), a Red 'X' mandates immediate vacation of closed lanes, unlit signals revert to the national speed limit (70 mph for cars), and the orange SOS marker directs drivers to an emergency refuge area.

Step-by-Step Solution

1
Identify regulatory status of circular signs versus unlit gantries
Numbers in red circles indicate legally enforceable limits, while unlit gantries signify standard national speed limit rules apply.
The Highway Code establishes that circular signs give mandatory orders, whereas unlit electronic signs indicate standard default limits.
2
Differentiate lane closure enforcement and emergency infrastructure
The Red 'X' prohibits lane use, and the orange SOS telephone sign identifies emergency refuge areas.
Red 'X' signals are strictly enforced to protect stranded motorists and emergency services, while emergency areas provide safe refuge away from live carriageways.

Key Concept

Smart motorway variable speed limits, Red X compliance, and emergency infrastructure identification
Estimated Time:1m 15s
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