According to a recent release by PennDOT, construction that started Monday includes the installation of “radar detection equipment at the Park Avenue, Curtin Road, White Course Drive and College Avenue intersections along Atherton Street.”
These intersections use induction loops — an electric current that changes when a vehicle passes over it — that alert the signal cabinet to change the signal when a vehicle is present, PennDOT spokeswoman Marla Fannin said.
When Atherton is repaved, she said, new detection is necessary. Loops require more time and traffic control to replace than a radar unit, and one radar unit can detect the same area as two loops.
“Drivers should not experience any changes to the operation of the signals,” she said.