Due to the opposition to the Ringway plan and earlier proposals there are few grade-separated routes penetrating to the city centre.
Only the western A40, northeastern A12 Leyton By-pass, eastern A13 and southeastern A2 are grade-separated for most of the way into central London.
There is also the eastern A1203, a dual carriageway tunnel around the Docklands area, which directly links onto the A13.

There is a technical distinction between the motorways, operated by the Highways Agency, and other major routes, operated by TfL as the Transport for London Route Network (TLRN).
Many of London's major radial routes continue far beyond the city as part of the national motorway and trunk road network.

From the north, clockwise (and noting a key commuter location served by each rather than the final destination), the major radial routes are the A10 (north to Hertford), the M11 (north to Cambridge), the A12 (northeast to Chelmsford), the A127 (east to Southend), the A13 (also east to Southend), the A2/M2 (east to Chatham), the A20/M20 (east to Maidstone), the A23/M23 (south to Gatwick Airport and Brighton), the A3 (southwest to Guildford), A316/M3 (southwest to Basingstoke), the A4/M4 (west to Heathrow Airport and Reading), the A40/M40 (west to Oxford), the M1 (northwest to Luton & Milton Keynes) and the A1 (north to Stevenage).

There are also three ring roads linking these routes orbitally.
The innermost, the Inner Ring Road, circumnavigates the congestion charging zone in the city centre.
The generally grade-separated North Circular Road (the A406 from Gunnersbury to East Ham) and the non-separated South Circular Road (the A205) form a suburban ring of roughly 10 km radius.
Finally, the M25 encircles most of the urban area with roughly a 25 km radius.
The western section of the M25 past Heathrow Airport is one of Europe's busiest, carrying around 200,000 vehicles per day.

None of these roads have tolls, although the Dartford Crossing, which links the two ends of the M25 to the east of London, is tolled.
Due to the opposition to the Ringway plan and earlier proposals there are few grade-separated routes penetrating to the city centre. Only the western A40, northeastern A12 Leyton By-pass, eastern A13 and southeastern A2 are grade-separated for most of the way into central London. There is also the eastern A1203, a dual carriageway tunnel around the Docklands area, which directly links onto the A13.
There is a technical distinction between the motorways, operated by the Highways Agency, and other major routes, operated by TfL as the Transport for London Route Network (TLRN). Many of London's major radial routes continue far beyond the city as part of the national motorway and trunk road network.
From the north, clockwise (and noting a key commuter location served by each rather than the final destination), the major radial routes are the A10 (north to Hertford), the M11 (north to Cambridge), the A12 (northeast to Chelmsford), the A127 (east to Southend), the A13 (also east to Southend), the A2/M2 (east to Chatham), the A20/M20 (east to Maidstone), the A23/M23 (south to Gatwick Airport and Brighton), the A3 (southwest to Guildford), A316/M3 (southwest to Basingstoke), the A4/M4 (west to Heathrow Airport and Reading), the A40/M40 (west to Oxford), the M1 (northwest to Luton & Milton Keynes) and the A1 (north to Stevenage).
There are also three ring roads linking these routes orbitally. The innermost, the Inner Ring Road, circumnavigates the congestion charging zone in the city centre. The generally grade-separated North Circular Road (the A406 from Gunnersbury to East Ham) and the non-separated South Circular Road (the A205) form a suburban ring of roughly 10 km radius. Finally, the M25 encircles most of the urban area with roughly a 25 km radius. The western section of the M25 past Heathrow Airport is one of Europe's busiest, carrying around 200,000 vehicles per day.
None of these roads have tolls, although the Dartford Crossing, which links the two ends of the M25 to the east of London, is tolled.
Transport in London