Bus depot

The base where buses are stored and where inspection, maintenance, cleaning and refueling are carried out. It is also called an operations office. Once you know where the depots along your route are, bus movements such as deadheading runs and depot-bound services start to make sense.

What a bus depot is

A bus depot is the base where buses are kept once they have finished service and where they are looked after: inspection, maintenance, cleaning, refueling and the rest. Some operators call it an operations office, and the work done there also includes the roll call when drivers report for duty and the management of that day's services, which makes it a base for crews as much as for vehicles. When a bus has finished its day's work it returns to the depot, is washed and checked, and is made ready for the next day. Because so many vehicles come and go, a depot acts as a hub of the route network and shapes how the routes around it are put together. There are places all over Japan where a depot's name has become the name of a bus stop outright, as in stops called "[name]-Shako", in front of the depot, or ones named after an operations office.

Knowing where the depot is lets you read what the buses are doing

Once you know where the depots along your route are, the sights you see on an ordinary journey start to make sense. Near a depot, for example, you will often spot buses whose destination sign reads kaiso, meaning they are deadheading: vehicles moving between the depot and their route before or after service. You may also notice services in the timetable that run not to the usual terminus but to something like "[name] depot". Such a run carries passengers while doubling as a trip into or out of the depot, and you can use it exactly as normal as far as any stop along the way.

Because a depot-bound run does not travel all the way to the usual terminus, it is important to check the destination sign or the timetable before boarding to make sure it passes the stop where you want to get off. Conversely, if your stop is partway along the route, a depot-bound run is a perfectly good option, and it effectively increases the number of buses you can catch. Simply keeping the depot locations in mind makes those unfamiliar destinations in a timetable instantly readable.

How it differs from a turnaround point

A facility similar to a depot is the turnaround point. Buses wait at both, but where a depot is the buses' home, handling storage and maintenance as well, a turnaround point is a place for a short break, where a bus that has reached its terminus turns around and heads back. A closely related word is deadheading, which means running without passengers aboard; learn it alongside the depot and the whole shape of a bus's day comes into view: out of the depot in the morning, back and forth along its route through the day, and home to the depot at night.