The A1260 forms the western section of the Peterborough ring road.
The road starts at a roundabout on the A15 on the edge of Cygnet Park, a retail development. It heads north-west along a D2 road and soon reaches a roundabout on the A1139, which is the southern section of the ring road and also provides access to the A1. There being no direct interchange between the A15 and A1139, it is the A1260 that does the honours. This first section of the A1260 is known as The Serpentine. Beyond the junction with the A1139 (Fletton Parkway) the route becomes primary and bears the name Nene Parkway.
The A1260 continues north-westward, now grade-separated and still D2. This being Peterborough, the junctions are numbered. The first is J31, which provides access to a housing estate. We then go over the A605 (which is accessed by north-facing sliproads at J32, the preserved Nene Valley Railway (Orton Mere station is directly below the road), and then the River Nene before reaching J33, which provides access to the city centre via the A1179.
Passing between a golf course to the left and an area of housing estate to the right (although neither is visible as our road lies in a shallow cutting), and then a wood, we shortly come to the end of the road, at a roundabout interchange (numbered J15) with the A47. An unclassified road continues ahead: a distributor road serving the mostly residential suburb of Bretton. This starts off dual but soon narrows.