Comparison to Western “Rush Hour”: While Westerners understand “rush hour traffic,” the scale and duration of 拥堵 in China, especially during national holidays like Golden Week (黄金周) or the Spring Festival travel rush (春运), is on an entirely different level. The “Chunyun” is the largest annual human migration on earth, and the resulting 拥堵 on highways, in train stations, and at airports is a massive national event. This experience has profoundly influenced urban planning, spurred massive investment in public transport like subways and high-speed rail, and is a frequent topic of social commentary, jokes, and internet memes. It symbolizes both the cost and the benefit of China's economic miracle.