cross crossing directions dont green light lights navigate pedestrian red road sign signal signs street traffic traffic-light walk walking zebra business commerce display narrow Norwich old pedestrianised quaint sale selling shaded shop shoppers shopping sky windows workplace arch bridge curve England english footbridge Great Britain people plank rail ridge steep stroll thames wood wooden dark eerie filtered footpath glow gray grey lampposts man mist misty power lines roadside roadway silhouettes sunrise trees blue calm city cityscape clyde copyspace glasgow peaceful river scotland still sunny sunshine suspension train urban danger don't go past this sign forbidden isolated not beyond this point pedestrians stop here pictogram stop traffic sign warning attendees crowd crowds fair fun large crowd on the move pedestrians public relaxation shadows show spring visitors walkers