Evaluating the effect of lane width and roadside configurations on speed, lateral position and likelihood of comfortable overtaking in exclusive motorcycle lane.

•Roadside configuration affects the lateral position of motorcyclists significantly.•Lane width affects the lateral position of motorcyclists significantly.•Overtaking speed is significantly influenced by roadside configuration.•The likelihood of comfortable overtaking increases with higher overtaking speed.•Front motorcycles’ lateral position affects the likelihood of comfortable overtaking.