How many traffic lights does London have?

Cities hard Data from 2023

Guess before you scroll — the answer is below

Answer in traffic lights. Shorthand like 9m or 1.2bn works.

The answer

6,000 traffic lights

Roughly 6K.

London has around 6,000 sets of traffic lights, all coordinated from a single control centre. The first traffic light in the world was installed outside the Houses of Parliament in 1868 — gas-powered, and it exploded within a month.

Where this number comes from

Source Transport for London
Figure refers to 2023
Last checked
Unit traffic lights

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