Before the new A370 junction opened, the A370 had two lanes that separated into the B3128 (for the Long Ashton Park and Ride) and A370 (for Bristol); the A370 then separated into a traffic lane and a bus lane. All of this required merging movements and the new junction maintains this configuration with two lanes directed towards Bristol.
The South Bristol Link and the current closures through Barrow Gurney and Hartcliffe Way are having an impact on A370 journey times. For example, the 15,000 vehicles a day that used to travel through Barrow Gurney are currently being diverted onto the South Bristol Link.
Barrow Street in Barrow Gurney is due to reopen in the week commencing 10 April. When the road has reopened we’ll be able to monitor the normal traffic levels using the South Bristol Link and assess whether we need to do any additional work to improve traffic flows at the A370 junction.
We’re also looking at traffic data to understand the impact of the new A370 junction on traffic flows into Bristol city centre and how it is affecting the usual morning peak congestion on Winterstoke Road and the Cumberland Basin.
Traffic flows on the A370 junction will improve when the new road that connects the Brookgate industrial estate with the South Bristol Link opens later in the Spring. Traffic signals here will manage and ease the flow of motorists travelling towards the A370 junction.
We also expect that traffic travelling into the city will also reduce in the autumn when motorists will start using the new MetroBus services that will provide a rapid and reliable link into the city centre from Long Ashton Park and Ride.