During the May 1 ST period, only seven passenger cars (including seven) on the expressway can pass free of charge, including three-seat and two-seat family cars, as well as off-road vehicles, commercial vehicles and passenger cars. All trucks and passenger cars with eight seats or more are not free models. No matter whether it is non-operation or operation, as long as it is a truck or bus with more than eight seats (including eight seats), it is necessary to pay the toll.

In addition, the charging standards are as follows:

The first toll standard of expressway: the four-lane toll standard is 0.45 yuan/vehicle kilometer, the toll standard for more than six lanes is 0.60 yuan/vehicle kilometer, and the toll coefficients of vehicles in categories 1 to 5 are 1, 1.5, 2, 3 and 3.5 respectively.

Light and light trucks are Class II vehicles (four wheels), medium trucks are Class III vehicles (six wheels and two axles), large trucks are Class IV vehicles (three axles), heavy trucks are Class V vehicles (four axles and above), and the most expensive heavy trucks are 2. 1 yuan per kilometer.