Posts Tagged ‘roadworks’

Woods Estate Agents, Bradley Stoke, Bristol

Why do traffic lights at Aztec West show red when nobody is crossing?

Posted on Friday 3rd November 2017 at 5:08 pm by SH (Editor)

Photo of traffic lights at the pedestrian crossing.

Following on from the two major gridlock incidents in August and September, a number of Journal readers have asked why vehicles leaving the Aztec West Business Park and heading north on the slip road to the A38 are held by red signals at the new pedestrian crossing, when nobody is crossing and there is no traffic leaving the roundabout on the northbound A38? It has been suggested that this is contributing to delays exiting the business park.

We put the question to South Gloucestershire Council and this is what we had back…

“The crossing lights on the A38 immediately north of the roundabout are working as intended. This is not a regular, stand-alone pedestrian crossing, these new crossings are part of a sequenced traffic signal system that includes a pedestrian crossing facility. The entire roundabout is in effect a series of signalised junctions and we have balanced priorities to aid movement of all users. When lights controlling traffic are on red, this provides an opportunity for pedestrians to safely cross the road.”

“The particular signals in question control two, potentially conflicting streams of traffic (one exiting Aztec West the other the roundabout). Red lights on the different phases should allow a merge in turn operation, but we are aware of the need to look at this in respect to alignment with the signals under Junction 16 of the motorway. We are also considering the lane signing.”

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[Forum] Botched “improvements” leave drivers stranded in Aztec West

Posted on Wednesday 2nd August 2017 at 10:40 pm by Mike DJ (Forum)

Drivers attempting to leave Aztec West this evening faced delays of up to an hour due to badly configured traffic lights.

Here are two photos showing some of the queue in Aztec West:

Traffic queue in the Aztec West business park on 2nd August 2017. Traffic queue in the Aztec West business park on 2nd August 2017.

I walked out of the business park and discovered that the huge queues were caused by the phasing of the traffic lights.

Here’s the traffic on the Aztec roundabout from Bristol followed by the traffic from Bradley Stoke:

Aztec West Roundabout. Aztec West Roundabout.

I think it’s obvious from these photos that the traffic from both these directions was very light. These photos are both captured from a (non-too-exciting) video that I took showing the sequencing of the lights. The video shows that the lights allow traffic to flow from Bristol, then from Bradley Stoke, then from Bristol, then from Bradley Stoke and then finally allow a few vehicles out of the business park.

Here’s a photo of Bradley Stoke Way showing a complete lack of queues:

Little traffic on Bradley Stoke Way despite massive queues to leave the nearby Aztec West business park.

I took the Bradley Stoke photo some 15 minutes after the others because I walked home having abandoned my car in work.

Drivers in Aztec West have been facing variable traffic conditions for months as different traffic light settings are experimented with.  The traffic this evening is probably the worst that it’s been so far. I do remember that the traffic was bad on polling day back in June but that was only a relatively minor 20 minute delay.

Mike DJ

A small selection of public tweets on the issue

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Ocean Estate Agents, Bradley Stoke, Bristol.