Ключевые слова: accident, auto, automobile, blockages, bottleneck, bumper, business, busy, car, city, collapse, commute, crash, crowd, crowded, drive, during, frustration, fuel, fumes, gasoline, hanoi, highway, horizontal, hour, jam, lane, late, line, motion, motorway, pollution, road, row, rush, slow, slowdown, stop, street, stress, tail, traffic, transport, transportation, travel, urban, vehicle, vietnam, waiting,