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Southbound from Hadley common

Reported via mobile in the General Fault category anonymously at 10:13, Wed 15 September 2021

Sent to TfL less than a minute later. TfL ref: FMS3002279.

On a bike, coming south from Hadley, turning right into St Albans road, the new, ish, grid in the road does not detect bicycles when first in the queue at the stop line. This means that the lights do not go green on the filter for the right turn into St. Albans road. Either the bike has to cross the stop line, hoping a car or other vehicle stops behind them, get off in the middle of the road and walk across the junction, or jump the red filter if oncoming traffic allows which is obviously not legal.

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  • The traffic signal for traffic coming from St Albans road going towards High street or turning left into Hadley Green remained red for over 10 minutes starting at 7:30AM today. It caused a huge pile up of traffic and eventually motorists had to move while it was still red. It is dangerous and happens quite frequently at this junction

    Posted anonymously at 09:10, Wed 6 October 2021

  • The issue is intermittent but has become far more frequent recently, particularly it seems from 7pm in the evening. This is an ongoing problem that has occurred for many years during which it appears the entire traffic lights installation has been replaced. I have now also reported this to Barnet Council to ask them to Chase TfL up on this. Traffic can end up queuing back down St Albans Road past Alston Road, incidentally blocking the exit from my home although that is my not my main concern. Vehicles then crossing a red light is extremely dangerous as there is restricted visibility. I am a civil engineer and have worked on urban transport planning. The situation is unacceptable and I am sure breaches TfL's own standards.

    Posted by Nick Saul at 12:58, Tue 26 October 2021

  • Having inspected the installation closely the issue appears to be the traffic detection sensor pointing down St Albans Road. I note the sensor is angled to attempt to detect vehicles positioned to both turn left and right at the junction. It may not have sufficient "field of view" to reliably achieve this. I also note the connection for the sensor is by a long hanging unsupported wire. It should be fixed to the posts and other fittings of the signal unit. It may intermittently malfunctioning due to being damaged. I note the issue does not appear to be "closed" as stated.

    Posted by Nick Saul at 14:55, Tue 26 October 2021

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