美国在建国后至内战爆发前的这一时期里,掀起了轰轰烈烈的“内部改进”运动,历经修筑公路、开凿运河和铺设铁路等国内交通建设高潮,取得了一系列“革命性”的成就,这就是美国历史上的交通革命①。交通革命促使美国统一的国内市场迅速形成,推动区域经济的专业分工和工业化进程的 During the period from the founding of the People’s Republic until the outbreak of the civil war, the United States set off a vigorous “internal improvement” campaign and achieved a series of “revolutionary” achievements after the high tide of domestic traffic construction such as road construction, canal excavation and railway construction. This is the traffic revolution in the history of the United States. The traffic revolution hastened the formation of a unified U.S. domestic market and promoted the specialization and industrialization of the regional economy.