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Question

Difficulty: EasyRoad Markings

You are approaching a crossroads with yellow criss-cross lines painted across the road (a box junction). Under what circumstances are you permitted to enter and wait inside the box?

  1. A
    When you intend to travel straight ahead and your exit road is temporarily blocked by stationary traffic
  2. When you want to turn right and your exit is clear, but oncoming traffic prevents you from completing the turnAnswer
  3. C
    When an oncoming vehicle flashes its headlights to give you priority to proceed into the box
  4. D
    When you are following a queue of vehicles moving slowly straight through the junction

Answer

You may enter and wait inside the box junction when you want to turn right and your exit road is clear, but you are prevented from completing the turn by oncoming traffic or other vehicles waiting to turn right.
Under Rule 174 of the UK Highway Code, you must not enter a box junction unless your exit is clear. The single exception is when you want to turn right and your exit road is clear, but oncoming traffic (or other right-turning vehicles) prevents you from turning.

Step-by-Step Solution

1
Identify the type of road marking and its general legal rule.
The road marking is a box junction (yellow criss-cross lines). The standard rule under Highway Code Rule 174 is that you must not enter the box unless your exit road or lane is clear.
Recognising the marking establishes the baseline prohibition against blocking the intersection.
2
Apply the specific legal exception to the general rule.
The only exception allows a driver turning right to enter the box and wait if the exit is clear, being held up only by oncoming traffic or other right-turning vehicles.
This prevents unnecessary delay while maintaining safety and keeping cross traffic moving.

Key Concept

Highway Code rules on box junctions (Rule 174)
Estimated Time:45s
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Topics

Road Markings

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