St Peter's Way is a pretty straightforward dual-carriageway link road, connecting the A317 and A320 to the M25 at Junction 11. It starts at the Addlestonemoor Roundabout, at the junction of the A317 and A318. Climbing out of the roundabout, it crosses the local Weybridge to Virginia Water railway line. A mile on, it reaches the M25 roundabout. After crossing over the motorway, it then runs straight on for half a mile, before curving to the west and the junction with the A320 at Ottershaw Roundabout. When it was being built, many maps marked it as a motorway. It may have had a 70 mph limit, but there is no official evidence that it was ever formally classed as a motorway.
There was a plan to extend the route to the M3 at Shepperton, and the possibility of extension to Heathrow Terminal 4 was discussed. On the ground, the only physical evidence remaining of these plans are some rather overgrown earthworks in the woods between the Philip Southcote School and Woburn Park Farm, the home of Gerry Cottle's Circus.
St Peter's Way is an A road, although its number is disputed. It could be one of four choices: A317 throughout; A320 throughout; half A317 and half A320; or unnumbered. The formal documentation is certainly not very clear! Originally, it was planned to become part of the A319, as it bypassed the Addlestone section of the A319 between St George's Roundabout and Ottershaw. That road is now the B3121). However, St Peter's Way didn't take that number, neither then nor subsequently.
In 2010, T1(M) writes:
The link road is a spur of the A317 (or maybe the original route is now the spur?). Maps differ as to where this spur ends: the OS mapping used by Multimap at 1:25000 has the A317 continuing beyond the M25 junction to meet the A320 in Addlestone, but larger scales and smaller scales both show the A317 spur to end at the M25, the link west of the M25 being a spur of the A320.
In 2010, Graham writes:
I'm still not convinced by the above point. I have been digging around and I have not yet seen any official documentation (Runnymede BC, Surrey CC or Surrey Records) that shows the formal adoption of St. Peter's Way as either the A317 or the A320. Most documents just refer to 'St. Peter's Way'. The only reference that I have seen to it as the A317/A320 is on the 50mph speed limit orders but that's about it. We may have to wait until later this year (2010) for the definitive answer on this (30 year papers). I'd be very interested (even if nobody else is) to see if anyone can shed any light on this rather parochial matter.
Has anyone seen any formal documentation? Have any further papers been released?
In May 2011, Graham writes:
What I have seen shows that SPW was at one time supposed to become the A319 when the old road through Addlestone (now the B3121) was downgraded. Nothing seems to have come from that either. (We are of course talking about highway authorities who have been happy to have the same (wrong) roadsign showing the A31 instead of the A317 at the B3121/A317 junction since 1982!)