where would you see a contraflow bus lane

A contraflow bus lane is typically seen on a one-way street, especially in the center of major towns or cities. These lanes allow buses to travel in the opposite direction of the general traffic flow on the one-way street, which helps buses take shorter routes, reduce travel times, and improve public transport efficiency. Contraflow bus lanes are usually permanent features marked with specific blue signs and distinct road markings to differentiate them from the other lanes and to warn other road users not to enter these lanes except buses and sometimes bicycles or emergency vehicles.