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Traffic movements affected by an obstruction

Traffic movements affected by an obstruction: what it means

Sign GS105, GS103, GS104

What it means

A diagram shows that one of the lanes of a carriageway (the part of the road vehicles drive on) comes to an end.

What you must do

Make sure in time that there is a big enough gap in the traffic to merge with the traffic. Also yield (give way) to other traffic which might merge.

Where you see it

On any road.

Remember

A lane ends: find a big enough gap in time.

Test yourself

  1. Question 1

    Which of these signs indicates by means of a diagram that one of the lanes of a carriageway comes to an end?

    A
    B
    C
    Show answer

    Answer: Picture C

    The Traffic movements affected by an obstruction sign shows that one lane of the carriageway comes to an end.

  2. Question 2

    The sign shown indicates that one of the lanes of your carriageway comes to an end. What must you make sure of in time?

    • A That you overtake as many vehicles as possible first
    • B That the traffic behind you has come to a stop
    • C That there is a big enough gap in the traffic to merge
    Show answer

    Answer: C: That there is a big enough gap in the traffic to merge

    Where the sign shows a lane ending, check in time for a gap big enough to merge (join in).

  3. Question 3

    True or false?

    At a 'traffic movements affected by an obstruction' sign, a driver is not required to yield to other traffic which might merge.

    Show answer

    Answer: False

    At the sign that shows a lane ending, you must yield (give way) to traffic that might merge.

Part of the chapter Guidance signs and freeway direction signs

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