Single-source traffic flow data quality control algorithm and program design

This paper aims to realize the program design on the single-source traffic flow data quality control algorithm based on the value-calculation theory.First,the paper conducts the program flow design,including the data retrieving module,the data identification module,the data imputing module,the data storage module and the data output module.All the five modules keep communication and operate on the order of data flow direction.Further,the paper proposes the detailed program operation process,especially dwells on the two key modules including the data identification module and data imputing module.Finally,case studies are carried out on the Beijing’s expressway field traffic flow data and the results demonstrate that the program design can meet the demand of the algorithm design.Thus,the designed program will improve the level of automation and efficiency in the data quality control field.