Multipurpose LED signal system for pedestrian and traffic...
Non-stop automatic toll collection system
Non-stop toll collection system and method
Obstacle detector-responsive movable barrier operator...
Omni-directional LED lamps
On-board electronic device for use in electronic toll collection
On-board vehicle system and method for receiving and...
On-vehicle device for road-vehicle communication
On-vehicle device including numerical information...
On-vehicle emergency report apparatus, emergency...
Open road cashless toll collection system and method using trans
Parallel flow vehicle turn system for traffic intersections
Parking violation surveillance system
Pedestal mounted traffic beacon
Pedestrian activated stop sign
Pedestrian crossing safety apparatus
Photocell pedestrian button
Plastic barricade
Platoon running control system
Portable automated flagman