London

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.

The 1920s and 30s saw a huge roadbuilding boom in London's suburbs. Some of those roads are incredibly well known, but here are five Arterial Roads that have been almost completely forgotten.

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.

One of the world's biggest and most controversial schemes to manage traffic by charging for roadspace. You can drive in to London if you like, guv, but it'll cost you.

The UK's biggest "shared space" is a phenomenally expensive experiment in West London. How does it work?

Common sense suggests that you shouldn't be able to spend so much money on heavy engineering and end up with such a terrible road system.

It makes the traffic situation in one part of West London much more bearable but it should have been removed more than quarter of a century ago. It's amazing what you can do with a big Meccano kit.

Proposed at the same time as the Ringways, but ten times as ambitious - and to think the government considered building them both!

A North London roundabout signposted almost exclusively in pre-Worboys signs.