Is it strict to check cars in Gaotang section of National Highway 308?

Strict. The car inspection of Gaotang section of National Highway 308 will verify everyone's identity information and check the situation inside the car, so it is very strict. National highway refers to the main trunk highways with national political and economic significance, including important international highways and national defense highways, highways connecting the capital with the capitals of provinces, autonomous regions and municipalities directly under the Central Government, and highways connecting major economic centers, port hubs, commodity production bases and strategic locations.