ANALYSIS ON CHARACTERISTICS OF TRAFFIC VOLUME BY TIME AND VEHICLE TYPE ON NATIONAL EXPRESSWAYS

The Statistical Yearbooks of Traffic Volume that have been made by collecting road traffic data annually from national expressways, general highways, and local roads in Korea contain the traffic volume by road class, driving direction, vehicle type, and traffic time. The data contained in the yearbooks is highly utilized in studies on road and traffic fields and is used as foundational data for road planning, design, and operation. This study aims to analyze the current status of the traffic volume surveys, and discuss the characteristics of the data by comparing the traffic volumes with the vehicle type and traffic pattern taking time into consideration to determine the characteristics of the data.