yellow street light. warning. close - up view. skyscraper ktw in the background. katowice, silesia, poland

warning light signal symbol business lantern crisis stop control infrastructure semaphore traffic empty stoplight drive life speed outdoor technology electric movement road safety direction system close flash icon transport transportation architecture building district downtown city modern skyscraper urban street yellow background equipment metal design object color concept sign lamp view ktw katowice silesia poland light warning view background poland