First of all, from the model, although the axle and the promotion of the car train headwinds, but the shortcomings can not be ignored: shorter chassis to improve the vehicle requirements for road conditions, potholes do not prevail; technology is not mature enough to run up and down or easy to swing left and right, driving stability is poor; tractor and the gap between the carriage is smaller, meet the emergency braking carriage due to inertia will be pushed forward, security is poor; more than one carriage driving stability is poor, easy to move up and down or around, poor stability. Section carriages driving stability is poor, easy to tail or skidding, driving difficulty is quite high; in addition, the price is high, by the acquisition cost constraints are larger, so these two types of models have always been lukewarm.
Secondly, from the point of view of the national situation, China's vast land area, the terrain is more diverse, transport road conditions are complex, there are differences in the level of construction of the road network in different regions, the flexibility of the vehicle, convenience, adaptability and passability of the requirements of the high; in recent years, the general environment of the transport has not been too good, the freight rate is generally less, the owners are more likely to accept the models with low pre-positioning costs, strong adaptability of the goods from this point of view, compared with emerging From this point of view, compared with the emerging models, semi-trailers, after all, after years of development, the advantages are relatively greater.
In addition, from the foreign transport market, Europe and the United States, whether it is the means of transport or transport technology, has been in the world's leading level, some of the development trends of China's transport industry, such as lightweight, standardisation, specialisation, intelligence, remote control, etc., to a certain extent, is also aligned with Europe and the United States, in other words, the development of the European logistics and transport industry today may be the development of China's logistics and transport industry tomorrow. In Europe and the United States at present, semi-trailer trucks bear the transport volume of almost 70% -80% of the total transport volume, it can be seen, in a long time, the domestic semi-trailer will still occupy the main transport.
