Ключевые слова: america, black and white, boston, button, city, city tourism, cityscape, column, cross, crosswalk, downtown, editorial, highway, industrial, massachusetts, mechanical, motorists, old, outdoor, pedestrian, people, pole, press, public, push, push button, railroad, road, safety, sign, signal, snow, station, street, symbol, tourism, town, traffic, train, transport, transportation, travel, urban, usa, walk, walk signal, warn, white, winter, yellow,