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Right filter

Reported in the Signal Stuck category anonymously at 12:03, Wednesday 22 January 2020

Sent to Northamptonshire County Council 3 minutes later. ref: 1954477.

Right filter (heading towards town) never works (regardless of how many times you say its down to amount of cars). Repeatedly get left out in the middle of the junction. Needs sorting out

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Updates

  • Thank you for reporting a fault. We will use the information you have provided to assess and prioritise this fault in accordance with our published response times for fault reports.

    State changed to: Investigating

    Posted by Northamptonshire County Council at 12:05, Wednesday 22 January 2020

  • Right Turn Arrows Thank you for contacting Northamptonshire Highways. The layout of this junction is in common with many other across the county and indeed country where right turning traffic are expected to wait with in the centre of the junction and give way to oncoming traffic before completing the turn. As the right turn into Eskdail street is expected to be heavily used a there is a right turn arrow provided for drivers to turn right at this location however this requires drivers to move forward into the waiting are in the centre of the junction when the full green is shown. The arrow will only appear if several vehicles are waiting as single vehicles are expected to give way and make the turn if there is a gap in the oncoming traffic or complete the turn once the signals have gone to red as they have already crossed the stop line to take up the position to turn right in the centre of the junction. Drivers are permitted to do this under Highway Code rule 176. The detection for the Right turn arrow is located 2 car lengths back from the centre of the junction, these can be seen as black squares in the road surface. In order to activate the arrow this requires a vehicle to be stationary on the detector. Cyclists may not always get detected by the in carriageway detection at Traffic signals. The detection utilised by traffic signals uses an inductive loop in the carriageway. This relies on detecting objects made of ferrous materials. As modern cycles contain very little ferrous metals being predominately made out of Aluminium / Carbon Fibre this makes detecting them difficult. We have increased the sensitivity to try and improve the operation. Whilst alternative detection is available this is not 100% reliable in detecting stationary cyclists. We have been monitoring the operation of the signals for the past 2 weeks and the previous issues with the right turn arrow have been resolved.

    State changed to: No further action

    Posted by Northamptonshire County Council at 10:19, Wednesday 29 January 2020

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