Extraction and visualization of highway operation status indicators based on toll data

A visualization method of operational status indicators considering the characteristics of the highway itself is proposed. The valid fields are extracted from the historical toll data of the toll management center to obtain the status quo OD matrix, an optimized SUE model is proposed for re-allocation of traffic, and the results of multiple model allocations are compared to arrive at the best allocation scheme with root mean square error as the evaluation index. Combined with the historical toll data from May to December 2021 in Ganan, Jiangxi Province, an example validation is conducted, and the validation results show that the method can efficiently reflect the operation status of the road network as well as the traffic composition characteristics.