- A414 between A41 and A4251, Hertfordshire (Grid ref TL052054)
- A414 between A4251 and A4146, Hertfordshire (Grid ref TL054060)
- A414 between A4146 and A4147, Hertfordshire (Grid ref TL060066)
- A414 between A4147 and M1, Hertfordshire (Grid ref TL088075)
- A414 between A414 and M1 (8), Hertfordshire (Grid ref TL091076)
- A414 between J7 and J8, Hertfordshire (Grid ref TL095071)
- A414 between M1 Junction 7 and Roundabout A414, A5183 and A405, Hertfordshire (Grid ref TL142051)
- A414 between M10 and A1081, Hertfordshire (Grid ref TL150048)
- A414 between A1081 and A1(M), Hertfordshire (Grid ref TL203067)
- A414 between A1M / A1001 / A6129 and A1000 (midpoint), Hertfordshire (Grid ref TL229102)
- A414 between A1000 (midpoint) and A1000 Mill Green Lane, Hertfordshire (Grid ref TL240097)
- A414 between A1000 Mill Green Lane and B1455 Holwell Lane, Hertfordshire (Grid ref TL249100)
- A414 between B1455 and Campfield Rd, Hertford, Hertfordshire (Grid ref TL300119)
- A414 between Campfield Rd and A119, Hertfordshire (Grid ref TL318124)
- A414 between A119 Cross Lane and A119 Ware Rd, Hertfordshire (Grid ref TL323124)
- A414 between A119 and B1197 London Rd/John Tate Rd roundabout, Hertfordshire (Grid ref TL333124)
- A414 between B1197 London Rd and A10, Hertfordshire (Grid ref TL340124)
- A414 between A1170 and Eastwick Rd roundabout, Hertfordshire (Grid ref TL433114)
- A414 between A1170 and Eastwick Rd roundabout, Hertfordshire (Grid ref TL433114)
- A414 between Eastwick Rd roundabout and Hertfordshire boundary, Hertfordshire (Grid ref TL442116)
- A414 between Essex boundary and A1169, Essex (Grid ref TL443112)
- A414 between A1169 and A1184, Essex (Grid ref TL449111)
- A414 between A1025 and N/A (roundabout), Essex (Grid ref TL468096)
- A414 between B183 First Avenue Mandela Avenue and A1184, Essex (Grid ref TL468115)
- A414 between A1025 and A1169, Essex (Grid ref TL469090)
- A414 between N/A (roundabout) and B183 First Avenue Mandela Avenue, Essex (Grid ref TL469106)
- A414 between A1169 and M11, Essex (Grid ref TL474076)
- A414 between M11 and B181, Essex (Grid ref TL498056)
- A414 between B181 and A128, Essex (Grid ref TL546039)
- A414 between A128 and A1114, Essex (Grid ref TL600039)
- A414 between A12 and A1114, Essex (Grid ref TL694050)
- A414 between A12 and B1018 Heybridge Approach, Essex (Grid ref TL800051)
- A414 between A12B1018 Heybridge Approach and B1018 The Causeway, Essex (Grid ref TL850078)