traffic flow control PNG, stickers, cliparts, transparent illustration & graphics
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smart traffic light system, traffic light, red traffic signal, traffic control device, urban road safety, intelligent transportation technology, vehicle flow management
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traffic light rating system, road transport junction, traffic light signaling device, traffic flow control, urban traffic management, road safety measures, traffic light technology advancements
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speed bump warning sign, yellow diamond road sign, traffic flow caution, vehicle减速提示, road safety alert, cautionary road marker, speed control indicator
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two-way street sign, one-way traffic arrow, road direction indicator, black and white traffic symbol, street navigation guide, traffic flow control, monochrome road signage
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roundabout road design, circular transportation layout, controlled-access highway roundabout, asphalt road circle, traffic flow diagram, circular road pathway, roundabout road network
