A driver can only move from one lane to another if:
If he does not restrict the driver driving in the lane into which he is moving ; does not signal a change in the direction of travel .
If he does not endanger the driver driving in the lane into which he is moving ; does not signal a change in the direction of travel .
If he does not endanger and restrict the driver driving in the lane into which he is crossing ; while he must signal a change in the direction of travel .