The signal utilizes a 'puck' -- a small electronic sensor (about the circumference of a hockey puck -- that is embedded in the pavement.
Tracey Porpora | porpora@siadvance.com, Staten Island Advance
Sat, 09/02/2017 - 9:05am
The signal utilizes a 'puck' -- a small electronic sensor (about the circumference of a hockey puck -- that is embedded in the pavement.