It is necessary to reduce the original large box that exceeded the standard and change the raised fence back to the original height that met the requirements. According to industry insiders, the rectification of overload chaos will affect the freight cost in the short term, but in the long run, the efficient matching of goods and the optimization of logistics and transportation routes will greatly reduce the logistics cost of the whole society.

Overweight vehicles will affect the braking distance, and the change of vehicle load will directly affect the braking distance. Experiments show that when the speed is 30 km/h, the braking distance of a freight car with a load of more than 3 tons will be extended by 0.5- 1.0 m per ton. As for the overloaded car, the braking distance is longer because of the increased inertia. The extension of the distance between unsafe areas will often cause unexpected psychological pressure on drivers, which will lead to car accidents.

Damage form of bridge caused by over-limit and overload transportation

Overloaded vehicles will cause the bridge load combination to exceed its load envelope range, causing immediate damage to the bridge, and the bearing capacity will drop rapidly until a dangerous bridge is formed. The vehicle seriously exceeds the limit, even if the design standard of cement concrete bridge is very high, the deflection of the bridge will inevitably increase, which will lead to premature cracking of cement concrete and corrosion of steel bars and shorten the service life of the bridge. In the weak link of the bridge, the reinforcement at the joint of the expansion joint is damaged by the over-limit vehicle, and the fill at the bridge head sinks, causing the bridge head to bump, which affects the driving comfort and safety.

For the above contents, please refer to Baidu Encyclopedia-Transportation of Overweight Goods.