Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

In order to analyze the causes of traffic congestion and prepare solutions, studies using mobility data are being actively conducted. Mobility data can manage ITS infrastructure and overcome the limitations of spatial range. In addition, it is possible to collect the trajectory of individual vehicles, enabling objective and consistent traffic monitoring and analysis across the country. The problem of traffic congestion in the road section is an important constraint affecting the development of the national economy. Therefore, assessing the level of traffic congestion on a section of the road is important for traffic management and control. In the previous studies, most of the indicators for congestion section used a single evaluation indicator. However, considering the complexity and dynamics of transportation, an evaluation method using various indicators can be effective. In this study, speed-based indicators (congestion intensity, congestion duration, congestion length, bottleneck rate, congestion rate) were set as congestion indicators in consideration of the possibility of data collection and general use. The priority of recurrent congestion severity was evaluated by calculating the composite score using various congestion indicators. Through this study, it is expected that it will be able to help prepare various measures to improve congestion, such as monitoring recurrent congestion sections, support for decision-making on transportation policies, investment in road infrastructure, and pre-post evaluation of policies.