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Saturday 27th August 2016
Max 25°C | Min 18°C

Why do some buses have numbers on the roof?


I work on the third floor and I’ve noticed that some buses have numbers painted on the roof and some don’t. Why is that? What do the numbers mean?
Ali, Dartford


** Definitive **
Name: John, Epsom
Qualification: Bus expert
Answer: The white roof is to reflect the heat in the summer. For the numbers, the first two letters signify the company who run the bus service and the letters are the fleet number for the bus in question, so they can be seen by the police cameras above.
(James O’Brien: That’s correct, but it doesn’t answer why some have them and some don’t.)