How long can traffic congestion at highway toll stations not exceed?

[ClaytonRose]

Traffic congestion at highway toll stations should not exceed 200 meters. If it exceeds this limit, vehicles must be allowed to pass for free. However, if all toll lanes are fully operational and congestion still occurs, free passage will not be granted. Chinese national laws and local regulations do not explicitly address this issue, but some provinces and municipalities have specific regulations. For example, Jiangsu, Guangdong, and Shanghai have implemented highway congestion release orders. In Jiangsu Province, if an average of more than 10 vehicles are waiting to pay due to insufficient toll lanes being open, or if the queue of waiting vehicles exceeds 200 meters even with all lanes open, the toll station must allow free passage. In Shanghai, when the queue length at toll lanes exceeds 1,000 meters, the operator must implement partial or complete free passage measures at the toll lanes.