A1(M) junction 6 to junction 8 smart motorway
We're converting the A1(M) between junction 6 and junction 8 into a smart motorway to reduce congestion and delays and make journey times more reliable.
Project information
The A1(M) between junctions 5 and 9 is one of the top ten busiest sections of the entire London to Leeds (East) route. Congestion occurs frequently at peak times at a number of junctions. This is expected to get worse, with potential residential developments that could see up to 13,000 additional new homes built in the area by 2030.
We'll be converting the A1(M) between junction 6 and junction 8 in Hertfordshire to a smart motorway to reduce congestion and delays and make journey times more reliable.
This smart motorway will provide 50% additional traffic capacity between junctions 6 and 8, converting the existing two lane dual carriageway into creating a three-lane motorway between junction 3 (Hatfield) and junction 9 (Baldock / Letchworth).
This project aims to:
- Smooth the flow of traffic at peak hours using variable speed limits to reduce congestion and delays
- make journey times more reliable
- give motorists more safety information using electronic signs warning of congestion or broken down vehicles ahead
- support local economic growth and new jobs
A1(M) junctions 6 to 8, Statutory Instrument Consultation (variable mandatory speed limits) - 10 February 2020 to 9 March 2020
Documents

Traffic information
Information about scheduled roadworks and events on our motorways and major roads.Sign up for updates!
Keep up to date with what's happening on this scheme by signing up to our updates.