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Question

Difficulty: EasySpeed Limits

Match each vehicle and road scenario to its correct UK national speed limit (where no other speed limit is signed).

  • A car driving on a road with street lighting30 mph
  • A car towing a trailer on a single carriageway50 mph
  • A solo car driving on a single carriageway60 mph
  • A solo car driving on a dual carriageway70 mph

Answer

A car on a street-lit road matches 30 mph; a car towing a trailer on a single carriageway matches 50 mph; a solo car on a single carriageway matches 60 mph; a solo car on a dual carriageway matches 70 mph.
Under UK Highway Code rules, the national speed limits are 30 mph on roads with regular street lighting (built-up areas), 50 mph for cars towing trailers on single carriageways, 60 mph for solo cars on single carriageways, and 70 mph for solo cars on dual carriageways.

Step-by-Step Solution

1
Identify the national speed limit for roads with street lighting.
30 mph applies to roads with regular street lighting unless signs show otherwise.
Street lighting generally signifies a built-up urban area.
2
Determine the speed reduction for a vehicle towing a trailer on a single carriageway.
Towing vehicles have a lower limit of 50 mph on single carriageways.
The additional weight and stability requirements reduce the maximum safe operating speed by 10 mph compared to a solo car.
3
Determine the national speed limit for a solo car on an undivided single carriageway.
60 mph is the default national limit.
Single carriageways without a central reservation carry a 60 mph limit for cars and motorcycles.
4
Determine the national speed limit for a solo car on a dual carriageway.
70 mph is the default national limit.
Dual carriageways feature a central physical barrier dividing opposing traffic, allowing a 70 mph limit.

Key Concept

UK National Speed Limits by Road Type and Vehicle Configuration
Estimated Time:45s
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Topics

Speed Limits

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