Road sign for merging lanes in Iran: Who has priority?

Road sign for merging lanes in Iran: Who has priority? - Bicycle Lane on Gray Concrete Road

I am currently traveling Iran and unfortunately experienced a car accident at the merge of two lanes. There is a road sign indicating the merge but I cannot see whom it gives priority to. Can someone give advice?

Road sign

The accident itself happened as the car from the very right lane hit the car coming from the lane to the left in the rear part.

Accident

Whose fault would this be?

EDIT

The policeman told us that because the car coming from the left was hit at the corner and not frontal it is its driver's fault in line with a recent amendment. I cannot see the reasoning behind this. Does anyone else?






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When two lanes merge who has the right away?

When two lanes merge into one, the vehicle in the through lane \u2013 the lane that is not ending \u2013 has the right-of-way. The merging car is required to yield to traffic. For some drivers, that's reason enough to bunch up at the point of the lane closure and refuse to allow a vehicle to merge.

What rule should you apply when merging with other traffic?

More tips for mergingLook well ahead (remember the 12-second rule) for any road signs that tell you there is a lane merge ahead. If traffic is slowing down in front of you it could be a clue that there is a merge ahead.

Do you have to indicate when you merge lanes?

It's not legally required for you to indicate, but it is best practice because other drivers might not have noticed that the lane is merging (i.e. the road is narrowing) and therefore may not be expecting you to move left or right. In an urban area, it's common for two lanes to merge into one.



merging lane who has right of way




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