- A20 between A20 Amersham Rd and A2 Parkfield Rd, Lewisham (Grid ref TQ366768)
- A20 between A2 Parkfield Rd and A20 Lewisham Way, Lewisham (Grid ref TQ367768)
- A20 between Amersham Rd and A2210, Lewisham (Grid ref TQ376760)
- A20 between B210 and A2211, Lewisham (Grid ref TQ381758)
- A20 between A2211 and B210, Lewisham (Grid ref TQ383756)
- A20 between A2211 and A2212, Lewisham (Grid ref TQ390752)
- A20 between A2212 and A2213, Greenwich (Grid ref TQ400749)
- A20 between A205 and A2213, Greenwich (Grid ref TQ410745)
- A20 between A205 and A208, Greenwich (Grid ref TQ420733)
- A20 between A208 and Greenwich boundary, Greenwich (Grid ref TQ435726)
- A20 between Bexley boundary and A223, Bexley (Grid ref TQ450720)
- A20 between A222 and A223, Bexley (Grid ref TQ464706)
- A20 between A223 and Bromley boundary, Bromley (Grid ref TQ482700)
- A20 between L A Boundary and M20, Kent (Grid ref TQ520679)
- A20 between M20 and M25, Kent (Grid ref TQ524678)
- A20 between M25 Jct 3 and A227, Kent (Grid ref TQ540673)
- A20 between A225N and S225 S, Kent (Grid ref TQ550670)
- A20 between A225 and M20 JCT 2, Kent (Grid ref TQ580626)
- A20 between M20 JCT 2 and A227 N, Kent (Grid ref TQ610596)
- A20 between A227S and A227 N, Kent (Grid ref TQ614593)
- A20 between A227 and A227M26 Jct 2a, Kent (Grid ref TQ620590)
- A20 between M26 Jct 2a and A25, Kent (Grid ref TQ630583)
- A20 between A25 and B2016, Kent (Grid ref TQ636580)
- A20 between A228 and hospital entrance, Kent (Grid ref TQ700583)
- A20 between hospital entrance and A20 spur to M20, Kent (Grid ref TQ730577)
- A20 between M20 SPUR and M20, Kent (Grid ref TQ732579)
- A20 between St Laurence Avenue and spur to M20, Kent (Grid ref TQ734576)
- A20 between St Laurence Avenue and A26, Kent (Grid ref TQ750561)
- A20 between A229 and A229 roundabout, Kent (Grid ref TQ756554)
- A20 between A229 roundabout and A229 Mill Street, Kent (Grid ref TQ758556)
- A20 between A26 and A229, Kent (Grid ref TQ763557)
- A20 between A229 and Yeoman Lane, Kent (Grid ref TQ785553)
- A20 between Yeoman Lane and A249, Kent (Grid ref TQ800551)
- A20 between A249 and B2163, Kent (Grid ref TQ827544)
- A20 between B2163 and East Street, Harrietsham, Kent (Grid ref TQ831542)
- A20 between East Street, Harrietsham and A252, Kent (Grid ref TQ910520)
- A20 between A252 and Orchard Heights roundabout, Kent (Grid ref TQ960480)
- A20 between Orchard Heights roundabout and A227, Kent (Grid ref TQ998440)
- A20 between SPUR and M20, Kent (Grid ref TR003438)
- A20 between A28/A292 and A28, Kent (Grid ref TR010437)
- A20 between A2070 and Church Rd, Smeeth, Kent (Grid ref TR060400)
- A20 between Church Rd, Smeeth and A261, Kent (Grid ref TR100383)
- A20 between A261 and B2068, Kent (Grid ref TR130364)
- A20 between A261 and A20 spur, Kent (Grid ref TR133367)
- A20 between A20 and M20, Kent (Grid ref TR136371)
- A20 between B2068 and M20 (Jct 12), Kent (Grid ref TR180373)
- A20 between A20 and M20 (Jct 12), Kent (Grid ref TR180373)
- A20 between M20 Jct 13 and A260, Kent (Grid ref TR217380)
- A20 between M20 Junction 13 and A260, Kent (Grid ref TR221388)
- A20 between A260 bridge and A20 slips midpoint, Kent (Grid ref TR221387)
- A20 between A260 bridge and A20 slips midpoint, Kent (Grid ref TR222387)
- A20 between M20 Junction 13 and A260, Kent (Grid ref TR222389)
- A20 between M20 Junction 13 and A260, Kent (Grid ref TR222388)
- A20 between M20 Junction 13 and A260, Kent (Grid ref TR224390)
- A20 between A20 slips midpoint (near A260) and roundabout by South Military Rd, Dover, Kent (Grid ref TR290393)
- A20 between roundabout by South Military Rd and A20 The Viaduct, Kent (Grid ref TR315403)
- A20 between A20 main route and End (Clarence Place/Lord Warden Square), Kent (Grid ref TR316404)
- A20 between A20 spur and A256, Kent (Grid ref TR317409)
- A20 between A256 and A256, Kent (Grid ref TR322414)
- A20 between A256 and East Cliff roundabout, Kent (Grid ref TR325414)