The road starts at junction 31 on the A14 with access from only A14 traffic from the west and access to westbound A14 traffic towards Huntingdon. The road immediately continues into Cambridge and heads into the centre as Huntingdon Road, passing Fitzwilliam College to a junction with the Cambridge inner ring road where the road terminates. To rejoin the A1307 from here you may use the ring road around Cambridge to the junction, or routes through Cambridge city centre. Once on the A1307 again the road heads south east out of Cambridge as Hills Road, signposted to Haverhill. As the road continues out of Cambridge it passes Addenbrooke's Hospital. The road then passes BabrahamPark and Ride. Green buses may be seen from here in Cambridge. The road continues through the Gog Magog hills and past Wandlebury country park. The road then passes the Babraham business park and carries on to Fourwentways, an interchange with the A11 and services provided by Euro Garages and a hotel by Travelodge. After passing Little Abington and Hildersham, the road passes Linton on the south side with the B1052 providing access to the village centre and goes southbound to Saffron Walden. The road then terminates at Haverhill in Suffolk. Many fatal accidents have occurred along the route, particularly between Little Abington and Horseheath, leading to frequent pressure from regular users to have safety improvements added. Mostly, council officials have been reluctant to spend precious resources on this, although campaigning has been growing momentum in recent
Reclassification of A14
Following the opening of the Huntingdon Southern bypass, part of the A14 Cambridge to Huntingdon improvement scheme, on 9 December 2019, the former A14 between Swavesey and travelling north-west towards Huntingdon is reclassified as the A1307. From the Girton interchange to Bar Hill, the A1307 will mostly follow newly constructed local access roads running parallel to the A14. From Bar Hill to the Swavesey interchange is mostly using the old A14 Eastbound carriageway, including a new grade separated junction for Lolworth. From the Swavesey interchange to Huntingdon is using mainly the old A14 dual carriageway. En route are junctions for Fenstanton, St Ives, the Hemingfords and Godmanchester. New junctions for Huntingdon town centre and Huntingdon Railway Station will be added once the former A14 Huntingdon railway viaduct, passing over Huntingdon railway station and Brampton Road, is removed in 2020. Therefore the dual carriageway between former Junctions 24 and 23 of the A14 is closed until works are completed. There will be a link road from Hinchingbrook Park to the old A14, north of the East Coast Main Line, which will allow access to the A1307/A141 Spittals junction. This part of the A14 trunk road which links the A1 with the M11 and routes to Felixtowe; together with remodelling near Huntingdon Railway station.
