在相同的运输条件下，汽车运输效率的高低取决于汽车的载重量、技术速度和装卸时间三个主要因素。道路甩挂运输使汽车运输列车化，能相应提高车辆每趟次的载质量，从而提高驾驶员的工作效率，避免空车行驶，免除了装卸货的等候时间。试想，中国现有载货汽车保有量为920万辆，如果全面实行甩挂运输，那么，企业可减少50%以上的牵引车购置成本或租赁费用，提高车辆平均运输生产力30～50%，降低成本30～40%，油耗下降20～30%。另一方面，道路甩挂运输事先把要运输的零散货物采用机械化手段装在承载装置中，大大缩短了车辆停驶和货物出库的时间，加快了货物周转的速度，创造了时间效益；运输工具的规格统一，容积固定，限量承载货物，有利于从根本上遏制超限超载运输现象。同时，也有效促进了“大吨小标”整改工作。

Under the condition of the same transport, motor transport efficiency depends on the car's load, technology of speed and loading and unloading time three main factors. Road to jilt hang transport make motor transport train, accordingly improve the quality of vehicles per trip time load, so as to improve the work efficiency of the driver, avoid empty, be exempted from the waiting time of loading and unloading cargo. Just think, China's existing cargo is 9.2 million car ownership, if transport to the left, then, enterprises can reduce the cost more than 50% of the tractor to purchase or lease cost, improve average vehicle transportation productivity 30 ~ 50%, reduce cost 30-40%, from 20 to 30% lower fuel consumption. On the other hand, the road to jilt hang transport in advance by mechanical means to transport of goods of scattered in a bearing device, shorten the time of the car stops and outbound goods, accelerates the pace of goods flow, create the benefit of time; Transport of the specifications of the unified, fixed volume, set limit to carry goods, fundamentally curb overrun overload transportation phenomenon. At the same time, also effectively promote the "big tons of small scale" rectification work.