 | A traffic signal in Pennsylvania. Photo in Downtown Pittsburgh. (August, 2012) |
 | A traffic signal in Pennsylvania. Photo near Downtown Pittsburgh. (August, 2012) |
 | A traffic signal in Pennsylvania. Photo on NB PA 281 north of Somerset. (July, 2019) |
 | A traffic signal in Pennsylvania. Photo on Ben Franklin Parkway in Philadelphia. (July, 2019) |
 | A traffic signal in Pennsylvania. Photo on Ben Franklin Parkway in Philadelphia. (July, 2019) |
 | A traffic signal in Pennsylvania. Photo on Paxton Street in Harrisburg. (July, 2019) |
 | A traffic signal in Pennsylvania. Photo on 2nd Street in Harrisburg. (July, 2019) |
 | A traffic signal in Pennsylvania. Photo on Pittsburgh. (July, 2019) |