We're responsible for the Transport for London Road Network (TLRN) - known as 'red routes' because of the painted red lines.

Most important roads in London

These roads are London's main routes, and although they make up only 5% of the total road length, they carry more than 30% of London's traffic. See a map of London's red routes.

Our priority is to keep London moving and reduce delays, not raising revenue through fines. We are trying to help people understand red routes so that they avoid an unnecessary fine.

Signs and road markings along the red routes tell you what you can and can't do. If you don't follow signs and markings, we may issue you with a Penalty Charge Notice (PCN).

We monitor the following on red routes:

  • Parking and loading
  • Yellow box junctions and banned turns
  • Bus lanes

Local Authority roads

The majority of roads in London are managed by local councils. Roads with yellow lines or pay and display meters, parking meters or residents' parking bays are all managed by the local London Authority and not us. If you have any queries or receive a PCN in relation to these roads, please contact the relevant council who will be able to help.