Ключевые слова: architecture, arrow, background, bangkok, building, city, construction, door, doorway, electric, electricity, emergency, engine, engineer, engineering, equipment, escape, exit, factory, fire, garage, green, industrial, light, line, locomotive, machine, machinery, maintenance, manufacturing, moving, plant, platform, protection, railroad, railway, red, repair, rescue, run, safe, safety, sign, skytrain, track, train, transport, transportation, urban, vehicle,