The increased capacity on the Zig Zag Road incline and Donkey Green area of Box Hill in Surrey comes after five months of detailed work following the London Surrey Cycle Classic test event in August.
The area will offer spectators a fantastic view of the Road Races, with the men’s race looping Box Hill nine times and the women’s twice. Access will be ticketed, in line with London 2012 aims to provide fair access and safety at venues.
The final capacity at the viewing area will be confirmed when the work to clear the area is completed and a health and safety report is carried out.
LOCOG is working closely with landowners National Trust and advisors Natural England to protect wildlife in the area.
The rest of the route, which travels through six London boroughs, four Royal Parks and Surrey countryside, offers spectators approximately 120km of road to watch the race for free. Spectators can also view the race for free from other roads on the Box Hill Loop, excluding the Zig-Zag Road incline and Donkey Green
Andy Wright, the National Trust Countryside Manager for Box Hill said: 'It’s great news that so many people will be able to enjoy the races in this wonderful natural setting. The surveys conducted by LOCOG are the most thorough ever carried out on this site and will really help us manage the habitat for the long term.'