M25 near Waltham Cross A414 near Hoddesdon A120 near Puckeridge A505 near Royston M11 near Cambridge A14 in Milton A142 near Ely The A10 is a major road in England which runs between The City of London and King's Lynn in Norfolk.

The route passes through or around primary destinations in Greater London, Hertfordshire, Cambridgeshire and Norfolk, including Dalston, Enfield, Hertford, Cambridge, Ely and Downham Market.

[4][6] The route between Bishopsgate in the City of London and Royston, Hertfordshire, roughly follows the path of Ermine Street, a Roman road.

The A3 runs southbound over London Bridge towards Elephant and Castle, before continuing to Clapham, Kingston upon Thames, Guildford and Portsmouth.

Continuing north, the A10 dual carriageway runs unbroken until Standon, passing Cheshunt, Broxbourne, Hoddesdon, Hertford, Ware and Wadesmill - through the Lea Valley.

The A10 becomes the Buntingford bypass, then continues north through Chipping, Buckland, Reed and Royston, to meet the A505 (for Baldock and Newmarket) at Hertfordshire's border with Cambridgeshire.

The single-carriageway route passes between the villages of Meldreth and Melbourn, along the south-eastern edge of Shepreth and through Foxton, Harston and Hauxton.

The route forms the western bypass to the City of Ely and Littleport before crossing the River Great Ouse for a second time.

[4] In Norfolk, the A10 passes Southery, Hilgay, Fordham, Denver, Downham Market, Tottenhill and West Winch before reaching the A47 (for Peterborough, Wisbech, Swaffham and Norwich).

[4][7] Ermine Street was one of the radial routes from Londinium, with its southern terminus at Bishopsgate - one of the gates in the ruined London Wall.

Ermine Street also lends its name to a ward in the North Hertfordshire council area, which is crossed by the A10 London Road (south of Royston).

The southern terminus of the M11 links with the A406 North Circular Road and A12 in the Woodford area of the London Borough of Redbridge.