cutout isolated lamp post roadsign traffic traffic light traffic lights drive lights pylon Red Light streets caution communication go highway intersection interstate light road sign stop street street scene traffic sign visual visual communication yield bridge cars left-hand traffic line London traffic jam conveyer conveyor end of the train hamburg local traffic incoming local traffic lrt peoples traffic public traffic railway railway station station subway train transport transportation urban life waggon wagon fire green red signs walk way ligths arrow blue bright direction indication one way only direction pointing pointing back traffic flow white avenue cabs crossroads Manhattan New York skyscraper taxi vertical vertigo yellow city repair traffic cone warning colors semaphore traffic colors