You are driving on a motorway . The vehicles driving in front of you suddenly slow down . Why are you steering your vehicle to the right-hand edge of the lane ?
So that an emergency lane can be created between the two rows of vehicles
So that I can overtake the driver in front of me more easily
So that drivers of emergency and road service vehicles or the breakdown service can get to their location quickly
So that I can more easily see , when the vehicles in front accelerate again