Drivers have reported problems with the lights outside the Next retail store in Bushey Road.
They claim the filter on one set makes the green light hard to see from certain angles.
It’s not the first time the problem has been reported to TfL.
A spokesperson has issued statement, it says;
“We install these filters over traffic lights to avoid confusion between lights and monitor them to ensure they are working properly.
An engineer attended this site and ensured the filters were correctly aligned.”
