- A312 between A4090 and A4005, Harrow (Grid ref TQ140860)
- A312 between A4005 and A404, Harrow (Grid ref TQ147870)
- A4005 between A4127 and A312, Harrow (Grid ref TQ150868)
- A4005 between A404 and A409, Harrow (Grid ref TQ155883)
- A4008 between A410 and Harrow boundary, Harrow (Grid ref TQ136920)
- A404 between A312 and B458, Harrow (Grid ref TQ153878)
- A404 between A312 and A4005, Harrow (Grid ref TQ149880)
- A404 between A4090 and A4005, Harrow (Grid ref TQ140884)
- A404 between A410 and Headstone Lane, Harrow (Grid ref TQ131900)
- A404 between B458 and A409/A4006 roundabout, Harrow (Grid ref TQ160879)
- A404 between Elm Park Rd and A410, Harrow (Grid ref TQ120906)
- A404 between Headstone Lane and A4090, Harrow (Grid ref TQ135890)
- A404 between Harrow boundary and Elm Park Rd, Harrow (Grid ref TQ110901)
- A409 between A4005 and A410, Harrow (Grid ref TQ153900)
- A409 between A410 and A4140, Harrow (Grid ref TQ149920)
- A409 between A4140 and Harrow boundary, Harrow (Grid ref TQ154940)
- A409 between A404 and A4005, Harrow (Grid ref TQ157883)
- A4090 between A312 and A404, Harrow (Grid ref TQ132880)
- A410 between A409 and A4140, Harrow (Grid ref TQ160919)
- A410 between A404 and A4008, Harrow (Grid ref TQ130912)
- A410 between A4140 and A4140, Harrow (Grid ref TQ171923)
- A410 between A4008 and A409, Harrow (Grid ref TQ150915)
- A410 between A4140 and A5, Harrow (Grid ref TQ180927)
- A4127 between Harrow boundary and A4005, Harrow (Grid ref TQ156860)
- A4127 between A4005 Harrow Rd and Harrow boundary, Harrow (Grid ref TQ158861)
- A4140 between A410 and Harrow boundary, Harrow (Grid ref TQ160934)
- A4140 between Harrow boundary and A410, Harrow (Grid ref TQ182900)
- A5 between A5100 and A5109, Harrow (Grid ref TQ194914)
- A5 between A5109 and Harrow boundary, Harrow (Grid ref TQ196910)
- A5 between Harrow boundary and A41, Harrow (Grid ref TQ173942)
- B461, Whitchurch Lane, Harrow (Grid ref TQ187913)
- C, Gordon Avenue, Harrow (Grid ref TQ161916)
- C, Parkside Way, Harrow (Grid ref TQ139891)
- C, The Ridgeway, Harrow (Grid ref TQ137877)
- C, Harrow View, Harrow (Grid ref TQ148889)
- M1 between Harrow boundary and Harrow boundary, Harrow (Grid ref TQ169946)
- U, Kenmore Avenue, Harrow (Grid ref TQ164903)
- U, High Worple, Harrow (Grid ref TQ128874)
- U, Augustine Road, Harrow (Grid ref TQ141905)
- U, Camrose Avenue, Harrow (Grid ref TQ190908)
- U, Elm Park Road, Harrow (Grid ref TQ114900)
- U, Streatfield Road, Harrow (Grid ref TQ172896)
- U, Long Elmes, Harrow (Grid ref TQ142907)
- U, Pinner Park Avenue, Harrow (Grid ref TQ142900)
- U, Algar Close, Harrow (Grid ref TQ159921)
- U, Pinewood Avenue, Harrow (Grid ref TQ136916)
- U, Byron Road, Harrow (Grid ref TQ156901)
- U, Grosvenor Avenue, Harrow (Grid ref TQ138881)
- U, Ventnor Avenue, Harrow (Grid ref TQ168904)
- U, Radnor Road, Harrow (Grid ref TQ150888)
- U, Albury Drive, Harrow (Grid ref TQ112908)
- U, Yeading Avenue, Harrow (Grid ref TQ123872)