From the Haringey website:
Haringey Council has today warned of looming traffic chaos around a Green Lanes shopping complex after two landowners failed to reach agreement on a package of improvement measures.
Since March 2008 the council has been trying to broker an agreement with Sainsbury’s and Wildmoor Properties, owners of the Arena Shopping Complex, on a number of measures to ease congestion around Williamson Road, N4, and its junction with Green Lanes.
The council has worked with TfL to secure an upgrade of traffic lights around the junction, due to start on Monday 3 November.
Sainsbury’s has also submitted a planning application designed to reconfigure traffic flow at the southern end of Williamson Road, which it manages together with Wildmoor Properties.
But following months of discussions, the two landowners are still unable to agree on the council’s main solution for easing congestion in the area.
This would involve temporarily stopping the right turn into the Arena Shopping Complex’s car park entrance closest to Green Lanes, to prevent traffic conflict between motorists entering the car park and those exiting Williamson Road onto Green Lanes.
Temporarily stopping the right turn would also enable Sainsbury’s and Wildmoor Properties to introduce a new two lane discharge from Williamson Road into Green Lanes, with left and right turn exits, which the council believes would substantially cut waiting times for motorists.
Under the council’s proposals, motorists would still be able to enter the Arena Shopping Complex’s car park from an entrance further along Williamson Road, and exit the car park from the access closest to Green Lanes.
The council is extremely concerned that there will be severe traffic congestion around the site in the run up to Christmas if the two parties fail to reach agreement on this principal measure.
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