Approach information

Guidance that tells you roughly where a bus in service is running right now and how many stops away it is. Used together with the timetable, which shows the plan, it makes the wait far easier to predict.

What approach information is

Approach information is guidance that tells riders roughly where a bus in service is running at this moment. It appears in forms such as "arriving in 2 stops" or "departed [stop name]", and you can check it on the display board at the bus stop or on an arrival page online. It is the rider-facing information produced by a bus location system, the mechanism that keeps track of where each bus is.

How it differs from the timetable, and how to use it well

Where a timetable shows the original plan, approach information shows the actual situation right now. Because buses run on public roads, congestion or a rush of boarding and alighting inevitably pushes them off schedule. Even when a bus does not come as timetabled, approach information tells you whether it is already close by or still some way off, so you can calmly decide whether to keep waiting or switch to another way of getting there.

The trick is to check once before you leave home or the office. If the bus is still far away, take your time getting ready; if it is closing in, hurry to the stop. Cutting down the time you spend standing at a bus stop is the single biggest benefit of approach information, and you feel it most on hot days, cold days and rainy days.

The fewer departures a route has, the more this habit is worth. On a route where missing one bus means a long wait for the next, knowing where the bus is before you set off translates directly into time saved.

Points to watch when reading it

Approach information is useful, but it is not infallible. The display refreshes at set intervals, so it can differ slightly from the bus's true position. And even when it says "1 stop away", the actual arrival time shifts with the traffic signal at the last intersection or with how many people are getting on and off. The safe way to use it is to treat the display as a guide and head to the boarding point a little early. Buses that have not yet begun their run may also be absent from the display, so "nothing showing" is not the same as "no bus is coming". Reading the timetable as the plan alongside approach information as the live picture is the way to get the most out of both. If you are curious about the mechanism itself, our article on how bus location systems work explains how they are generally put together.