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A21

Sevenoaks

Pembury

Once planned as the expressway to Hastings, the A21's high speed dual carriageway now reaches from the M25 to Royal Tunbridge Wells, serving the towns of western Kent.

Routes

A21

A21 in the Motorway Database 15 July 2017

With the Tonbridge-Pembury dualling scheme open, the A21 has been added to the Motorway Database.

Routes

A21

A21 - M25 - M26

Chevening Interchange

Routes

Region

What's new

Imperfectly Odd: Hardwick Roundabout

Hardwick Roundabout in Kings Lynn finally got its flyover in 2003, but it wasn't what the locals had expected. Is it the UK's most misunderstood junction?

Churchill away

Liverpool's Churchill Way flyovers were demolished earlier this year. Bryn Buck explores what's left when an elevated road suddenly goes away.

Think inside the box

Yellow box junctions keep crossroads clear and traffic on the move. Not everyone understands the rules, though - do you?

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Have you seen...

Junction Three

The M621 has one junction where everything leaves the motorway and heads for the city, and a very bizarre junction it is too.