1现阶段运输体系发展的特征(1)与20世纪80年代中期相比,美国居民消费出现增长,但在运输方面的开支基本处于不变。由于从业妇女的增多,拥有驾驶执照的人数增多,汽车数量增多(按准驾驶员计算),使得居民流动性持续增长。汽车和摩托车服务费用降低(由于购买使用二手汽车的数量多于 1 Characteristics of the transport system development at this stage (1) Compared with the mid-1980s, the consumption of residents in the United States showed an increase but the spending on transport remained basically unchanged. As the number of employed women has increased, the number of people holding a driving license has increased, and the number of cars has increased (calculated on a prospective pilot basis), resulting in a continuous increase in the mobility of residents. Lower costs for motor vehicles and motorcycles (due to the higher number of used cars purchased