Ключевые слова: activity, asphalt, black, building, car, city, construction, construction industry, construction machinery, construction site, day, equipment, highway, hot, industrial, industry, lines, machine, machinery, manual worker, men, occupation, orange, paving, people, protective, railroad, rails, repairing, road, road construction, shovels, steam, steamroller, street, summer, team, tram, tram car, tramway, transportation, uniform, warm, worker, workers, working,