Martin submitted the winning design for London’s first dedicated cycle route in 1977.

Now, 40 years on, the ground survey and GPS mapping of a system of recreational rides around the capital’s urban periphery is complete. The route comprises 12 arcs, 12 spokes, and 12 spin-offs. In total, it covers more than 750 miles of off-road and quiet cycling through varied landscapes – often beautiful, always interesting.

In a reference to the London orbital motorway, the M25, this cycle route system will be the C25. While the project is in development I have developed a blog library of 40 snapshots, taken from a recent adventure, or from the 2015-17 archive of photos taken on reconnoitre. These are laid out chronologically below.

Please contact Martin for further information, including access to the 84 GPS passes logged on the open source GPSies site.

C25 Arc 10: a lucky escape – and a plea to take care.

The C25’s purpose is to entice the rider out beyond the metropolis into pastures new, and while designing the system I was acutely aware of the importance of noting potential hazards along the way. Last week, out of the blue, I was thrown by a potholed rut between the surface of the approach lane and the main A40 carriageway in Beaconsfield, and left unconscious by the roadside for 20 minutes. Continue reading