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

Taxi DTG (Digital TachoGraph) data is the operation record of personal or corporate taxi cabs belonging to the city government. The DTG data includes many informations such as locations of getting on and off the taxi, travel speed etc. About 72,000taxies registered in the city of Seoul are gathering 130billion traffic information data annually. Currently, most of the DTG data are being discarded except for generating traffic information and vehicle control purposes. However, it is necessary to utilize the Taxi DTG data, actual vehicular traffic data, in traffic operation field such as traffic flow analysis. The purpose of this study is to analyze major arterials in Seoul using taxi DTG big data and to compare with existing major arterials used in the city of Seoul. We extracted traffic volume and speed of each link by processed DTG data and identify major road and compare with the current major arterials used in the city of Seoul. As a result, Although most of the derived roads were consistent with the existing management arterials, there was some road that was not included in existing management targets. This is 5roads extracted by the top 200links and 4 additional roads by top 500links. The road seems to be considered when selecting major roads in the future.