Key corridor tunnels

Proposed tunnels that Boris Johnson

claims could cut congestion in central

London by 20%

Start/end points of proposed tunnels

Potential sites for smaller tunnels

and flyunders

A4 Chiswick

A40 Park Royal

A12 Hackney Wick

A13 Beckton

A13

A12

A1261

A406

A40

A4

A316

A3

5 km

5 miles

Proposed tunnels that Boris Johnson claims could cut congestion in central London by 20%

Start/end points of proposed tunnels

Potential sites for smaller tunnels and flyunders

A4 Chiswick

A40 Park Royal

A12 Hackney Wick

A13 Beckton

New Malden

Holloway

Soho

Peckham

Welling

Bromley

Wembley

Croydon

A13

A12

A1261

A12

A406

A40

A4

A316

A3

5 km

5 miles