PassBuses and Midi Buses Only
Where: At the start of a road, lane or section of road set aside for public transport — commonly on urban arterials, approaches to transport interchanges and dedicated public-transport corridors.
Purpose: To command that only buses and midi buses may use the road or lane indicated. It is a blue command sign, so it tells you what must happen rather than what is forbidden, and disobeying it is an offence.
Action Required by Driver: If you are driving a bus or a midi bus, you may use the lane. Every other vehicle — including minibuses, taxis and motor cars — must stay out of it unless a further sign permits them. Watch for vehicles entering and leaving the lane at stops.
Bus, midi bus, minibus — the distinction being tested
The symbols on these signs differ only in the length of the vehicle drawn, and the test relies on that. A bus is the longest. A midi bus is shorter, carrying fewer passengers. A minibus is shorter still — the familiar taxi-sized vehicle.
When a sign shows two vehicles, both classes are permitted. Count the vehicles and compare their lengths before you answer.