In USA what is the law on merging traffic who has the right of way merging traffic or traffic flow?

Answer:

In most instances a lane of travel will be marked as the lane that is merging with the other lane or lanes. If so, the lane that is NOT ending has the right of way. When entering a freeway or Interstate roadway, the traffic already on the main lanes of travel has the right of way and the entering traffic has the duty to "merge" safely with the traffic already flowing on the main lanes.

First answer by Rvcpsanders. Last edit by Rvcpsanders. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].