By statistic data analyzing, this paper probes into the influence of sprawl of American population and jobs to suburbs on the mode of transportation and land use in the metropolitan areas.

• 文章通过对大量统计数据的分析,探讨了美国人口和就业机会向郊区的蔓延,对于大都市地区交通状况与土地利用方式的影响。