Transport for London

Rainbow Signals

The annual London Pride event was accompanied, in 2016, by some quite unusual changes to traffic lights around Trafalgar Square. The green men went missing — and seven new symbols took their place.

Low Emission Zone

A first step towards emissions-based road pricing, a pointless measure to enforce something that's happening anyway, or another leap forward in traffic planning from the people who created the Congestion Charge? It's hard to say.

Guides

What's new

The road that made no sense

It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.

The forever bottleneck, part 2

The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.

The forever bottleneck, part 1

The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.

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Have you seen...

Queensway Tunnel

The engineering marvel of its day, much altered and maligned ever since: this is the original Mersey Tunnel in all its glory.