Browsing through my new acquired Contour Road book for possible routes to try, #525 caught my eye. Basically the London to Peterborough must be the Great North Road, nowadays called the A1, and in places A1(M). At just one furlong under 80 miles, the could be quite a nice days ride. Total distance is likely to be increased as we avoid the A1(M) and other bits of the A1 where the old road no longer exists. I suppose an early Sunday morning start from London would be required to avoid traffic. The first train from Peterborough is the 05:46 which gets into Kings Cross at 07:21 so probably be able to start easily before 8am.
Next, I need to work out a route which matches the original as closely as possible.
The start will be the site of the General Post Office in St Martins-le-Grand just to the north of St Paul’s Cathedral. This is where mail coaches started from on their way up to York as well as other destinations all over the country.
Follow the A1 through Islington – Holloway Station – Archway Tavern – Highgate Station. Just after Highgate station, take the right fork onto the A1000 Great North Road. Follow this road through Barnet to Potter’s Bar and then Hatfield.
In Hatfield the A1000 turns right at lights but we will got straight on into Bull Stag Lane. At the end of this street we need to cross the railway line by way of a cycle path to rejoin the Great North Road on the other side. After about a half a mile we will rejoin a main road and after 4 roundabouts join the B197 in Stanborough. The B197 follows a parallel path to the A1, which we will continue until Welwyn after which we switch to the B656 through Codicote, Langley and St Ibbs until Hitchin (35 miles). From Hitchin Market Sq, we now will take the A 600 Bedford Rd until Henlow Station (now called Henlow Camp) where we will turn right onto the A659. After Henlow village, this road becomes the B659 which we will follow all the way to Biggleswade.
From Biggleswade until Tempsford the route becomes the A1 apart from a small section over Girtford Bridge. From Tempsford we have an adjacent road to follow until just before Tempsford Bridge, however, if we take this road we have no way of crossing the bridge…and the road takes us into St Neots on the wrong side of the Great Ouse river. The section needs thinking about, do we just follow the A1 all the way to Eaton Socon (about 10 miles)? Then we have the same problem after Little Paxton all the way up to Alconbury. From Alconbury the A1 becomes a motorway so there is the adjacent non-motorway traffic road to follow all the way up to Norman Cross. The alternative route would be from just before Tempsford Bridge carry on into St Neots and then Godmanchester, Huntington joining Ermine Street until it meets the A1 at Alconbury. This would reduce the total amount of actual A1 riding to under 5 miles, but this would be approx 3 hours after leaving London. How busy would it be at 11am?
The final section is turning right at Norman Cross and follow the London Road into Peterborough.