Transportation & Logistics › Roads › Traffic Volume and Flow — Public Data APIs

Open APIs related to Traffic Volume and Flow, within Transportation & Logistics › Roads on the Public Data Portal. 28 REST APIs, sorted by most requested. Click a name to go to its application page on the Public Data Portal. Search & filter on the main explorer.

  1. Ministry of Land, Infrastructure and Transport Korea Institute of Civil Engineering and Building Technology – Regular/Ad-hoc Traffic Volume Information Inquiry Service

    Ministry of Land, Infrastructure and Transport · Nationwide · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-06-02
    596 requests

    The regular and ad-hoc traffic volume information inquiry service is a REST-based open API service that allows daily query of vehicle traffic volume by various road types such as expressways and general national highways based on conditions such as year, road type, vehicle type, and time zone, and comprehensively provides information on the list and status of measurement devices and traffic volume measurement points.…

    RESTAuto-approvedNo restriction
  2. Ministry of Land, Infrastructure and Transport – Korea Institute of Civil Engineering and Building Technology traffic volume statistical data information lookup service

    Ministry of Land, Infrastructure and Transport · Nationwide · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-06-02
    389 requests

    The traffic volume statistical data information lookup service supports querying hourly, daily, monthly, and annual vehicle traffic volume statistics and individual raw vehicle data in JSON and XML formats based on various road types such as highways, general national roads, local roads, and state-supported local roads, as well as conditions such as year, month, vehicle type, and time slot. It supports artificial intelligence learning, autonomous driving…

    RESTAuto-approvedNo restriction
  3. Incheon Metropolitan City – Road traffic volume statistics

    Incheon Metropolitan City · Incheon · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-09-18
    311 requests

    The road traffic volume statistics API provided by Incheon Metropolitan City provides statistical data on daily traffic volume aggregated in standard link units of major roads within its jurisdiction. The purpose of this API is to provide core information necessary for quantitatively grasping the city's traffic status, analyzing road usage efficiency, planning transportation facilities, and establishing transportation policies.…

    RESTAuto-approvedNo restriction
  4. Seoul Metropolitan Government – AVI traffic volume

    Seoul Metropolitan Government · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-08-22
    255 requests

    본 데이터는 부산광역시 교통정보서비스센터에서 운영하는 AVI(Automatic Vehicle Identification) 장치를 통해 생성일시, AVI 지점명, 경도, 위도, 수집된 구간별 교통량 정보를 제공합니다.이 데이터를 활용하여 교통량·통행 시간·통행 패턴 등을 산출할 수 있습니다.본 데이터셋은 …

    RESTAuto-approvedNo restriction
  5. Jeonju-si, Jeonbuk State – Communication Information Service

    Jeonju-si, Jeonbuk State · Jeonbuk Jeonju · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2024-01-24
    165 requests

    You can view communication information by major road in Jeonju, road information, and CCTV images.

    RESTAuto-approvedAttribution required
  6. Busan Metropolitan City – Smart Intersection Approach Traffic Volume Information

    Busan Metropolitan City · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-08-22
    163 requests

    This data is traffic volume and pedestrian information by smart intersection approach provided by Busan Metropolitan City. Major provided items include collection date and time, intersection name, approach direction, traffic volume for straight, left turn, and right turn, queue length, and pedestrian number, allowing users to grasp detailed traffic flows by intersection entry section. This data is used for intersection operation efficiency analysis, signals…

    RESTAuto-approvedNo restriction
  7. Incheon Metropolitan City – Road Travel Speed Statistics Inquiry Service

    Incheon Metropolitan City · Incheon · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-09-18
    124 requests

    The road travel speed statistics inquiry service API provided by Incheon Metropolitan City provides statistical data on vehicle travel speeds on major roads within its jurisdiction. This API aims to be used as basic data for objectively analyzing urban traffic congestion levels, measuring the effectiveness of traffic policies, operating Intelligent Transport Systems (ITS), and providing real-time traffic information…

    RESTAuto-approvedNo restriction
  8. Daegu Metropolitan City – Traffic Flow Information (New)

    Daegu Metropolitan City · Daegu · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-05-29
    122 requests

    The Daegu Metropolitan City Traffic Flow Information API is a public data API that processes and provides traffic flow information collected through the Intelligent Transport System (ITS) in real time. This API includes various information such as section name, starting point name, arrival point name, street name, distance, and speed for major roads based on the Ministry of Land, Infrastructure and Transport standard node link. This…

    RESTReview requiredNo restriction
  9. Daejeon Metropolitan City – Daejeon Traffic Information Service

    Daejeon Metropolitan City · Daejeon · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-04-10
    118 requests

    Daejeon Metropolitan City traffic information data includes real-time communication status of roads in the city center as well as movement route information by various transportation means. Traffic speed, travel time, and communication grade of major roads are provided in detail, and optimal route guidance functions to destinations by transportation means such as cars, buses, and subways are also included. This data helps effective traffic flow…

    RESTAuto-approvedNo restriction
  10. Ulsan Metropolitan City – C-ITS API

    Ulsan Metropolitan City · Ulsan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2022-08-24
    116 requests

    Provides real-time intersection signal information via API to general users after the Ulsan C-ITS project to support private smartphone app development. Using APOI information, private individuals or entities can receive real-time signal information and pedestrian information from Ulsan Metropolitan City to support the development of various services.

    RESTAuto-approvedCommercial use prohibited
  11. Busan Metropolitan City – Section Travel Speed Information

    Busan Metropolitan City · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-08-22
    109 requests

    This data is average travel speed information for major road sections in Busan provided by the Busan Metropolitan City Traffic Information Service Center. By processing data acquired from traffic information collection equipment, the average driving speed per section is calculated, which can be used to understand real-time traffic flow, analyze congested sections, and improve road operation efficiency. <Provision Method> Format: Ope…

    RESTAuto-approvedNo restriction
  12. Busan Metropolitan Government – Link Traffic Information

    Busan Metropolitan Government · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-07-30
    104 requests

    As data on link traffic information within Busan Metropolitan Government, it provides information such as link ID, road name, starting point name, ending point name, speed, and traffic volume in Busan Metropolitan Government. Link traffic information refers to public data that provides real-time traffic status in units of road 'links' within Busan Metropolitan Government. A link is the minimum unit obtained by dividing a road into certain sections (…

    RESTAuto-approvedNo restriction
  13. Seoul Metropolitan Government – Linked Communication Information

    Seoul Metropolitan Government · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-08-22
    91 requests

    This data is road traffic information provided by related organizations linked with the Busan Metropolitan City Transportation Information Service Center. Major items provided include collection date and time, link ID, road name, start point name, end point name, collection source name, speed, and traffic volume, including traffic information secured through inter-organizational cooperation systems in addition to data uniquely collected by the center. This data is provided by Busan City…

    RESTAuto-approvedNo restriction
  14. Ulsan Metropolitan Government – Road Information

    Ulsan Metropolitan Government · Ulsan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2026-09-30
    90 requests

    An openAPI that provides traffic conditions by section of Ulsan Metropolitan City roads. The road list inquiry function provides road name ID, road name, up/down direction classification, start/end node ID, and section distance, while the road traffic information inquiry function provides link ID, start/end node name, link length, travel speed (km/h), travel time (seconds), and GIS coordinates.…

    RESTAuto-approvedNo restriction
  15. Busan Metropolitan City – Passenger Car Day-of-the-Week Discount Affiliate Information

    Busan Metropolitan City · Busan · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-05-21
    51 requests

    Busan City is implementing the passenger car day-of-the-week system to save energy and reduce air pollution. To promote the spread of the passenger car day-of-the-week system by providing discount benefits to car owners who join and operate under the system, information on discount affiliate stores is opened. The opened data includes discount classification, discount store trade name, phone number, discount details, address, etc.…

    RESTAuto-approvedNo restriction
  16. Jinju-si, Gyeongsangnam-do – Traffic Volume by Point

    Jinju City · Gyeongnam Jinju · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-12-10
    51 requests

    This data is processed based on traffic-related information collected through the Jinju-si, Gyeongsangnam-do Intelligent Transport Systems (ITS). Centered around the facility ID for each point, the data includes major traffic indicators such as the sum of collected counts and average speed, and provides facility names along with latitude and longitude information. Through this, the traffic flow of major points in the downtown area…

    RESTAuto-approvedNo restriction
  17. Wonju-si, Gangwon-do – Grid-Based Mashup Traffic Index Inquiry Service

    Gangwon State Wonju-si · Gangwon Wonju-si · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2022-12-07
    48 requests

    A grid-based mashup traffic index inquiry service that provides traffic indices such as floating population and traffic flow based on measurement date and administrative neighborhood in Wonju-si, Gangwon-do.

    RESTAuto-approvedNo restriction
  18. Gwangyang-si, Jeonnam-Gwangju Integrated City – Overpass Information

    Gwangyang-si · Jeonnam & Gwangju Gwangyang-si · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2021-10-18
    39 requests

    A service that allows users to query overpass information and detailed information in Gwangyang-si, Jeollanam-do using input parameters.

    RESTReview requiredNo restriction
  19. Goesan-gun – Variable Message Signs

    Goesan-gun · Chungbuk Goesan-gun · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2021-08-12
    36 requests

    A service providing variable message sign names, road route names, numbers, directions, etc., in Goesan-gun, Chungcheongbuk-do.

    RESTReview requiredNo restriction
  20. Goesan-gun, Chungcheongbuk-do – One-Way Roads

    Goesan-gun, Chungcheongbuk-do · Chungbuk Goesan-gun · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2021-08-27
    35 requests

    A service providing Goesan-gun, Chungcheongbuk-do one-way road city/province name, city/gun/gu name, road name, reason for designation, designation year, road width, road extension, number of lanes, pedestrian-vehicle separation availability, organization name, etc.

    RESTReview requiredNo restriction
  21. Jinju-si, Gyeongsangnam-do – Traffic Flow Information

    Jinju-si, Gyeongsangnam-do · Gyeongnam Jinju · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-12-10
    35 requests

    This is data processed based on traffic information collected from the Intelligent Transport System (ITS) in Jinju-si, Gyeongsangnam-do. This data provides core traffic flow indicators such as the sum of traffic volume and average speed by section, centered on processed section IDs and processed section names, and includes start node IDs and end node IDs to provide structural connection information for each section together.…

    RESTAuto-approvedNo restriction
  22. Yeosu-si, Jeonnam-Gwangju Integrated Metropolitan City – Road Travel Speed Statistics Inquiry Service

    Yeosu-si, Jeonnam-Gwangju Integrated Metropolitan City · Jeonnam & Gwangju Yeosu-si · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2024-10-18
    32 requests

    This is an API that allows users to query road and section-based travel speed statistics in Yeosu-si, Jeollanam-do. It provides daily and monthly travel speed statistics and pattern speed statistics by road and section, providing average travel speed data for the relevant period.

    RESTReview requiredNo restriction
  23. Pohang City, Gyeongsangbuk-do – Traffic Statistics Major Road Traffic Volume Saecheonnyeon-daero

    Pohang City, Gyeongsangbuk-do · Gyeongbuk Pohang · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-03-04
    30 requests

    포항시 교통 통계 주요 도로 교통량 새천년대로에 대한 데이터로 1시, 2시, 3시, 4시, 5시, 6시. 7시, 8시 등의 항목을 제공합니다

    RESTReview requiredNo restriction
  24. Icheon-si, Gyeonggi-do – Traffic information inquiry service

    Icheon-si, Gyeonggi-do · Gyeonggi Icheon-si · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2024-02-13
    29 requests

    This is the Icheon-si traffic information inquiry service. It informs users about what Icheon-si's daily traffic communication information is like by time zone, and provides information on major congested sections. It provides daily traffic communication information, hourly traffic communication information, and major section congestion information inquiry services.

    RESTAuto-approvedCommercial use prohibited
  25. Pohang-si, Gyeongsangbuk-do – Road Traffic Volume Figures

    Pohang-si, Gyeongsangbuk-do · Gyeongbuk Pohang · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-02-25
    26 requests

    Data on Pohang-si road traffic volume figures, providing items such as 00:00, 01:00, 02:00, 03:00, 04:00, 05:00, 06:00, and 07:00.

    RESTReview requiredNo restriction
  26. Pohang-si, Gyeongsangbuk-do – Traffic Statistics Major Road Traffic Volume Posco-daero

    Pohang-si, Gyeongsangbuk-do · Gyeongbuk Pohang · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-03-04
    26 requests

    Data on Pohang-si traffic statistics major road traffic volume Posco-daero, providing items such as 1:00, 2:00, 3:00, 4:00, 5:00, 6:00, 7:00, and 8:00.

    RESTReview requiredNo restriction
  27. Pohang-si, Gyeongsangbuk-do – Traffic Statistics Major Road Traffic Volume Huimang-daero

    Pohang-si, Gyeongsangbuk-do · Gyeongbuk Pohang · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-05-12
    26 requests

    Data on Pohang-si traffic statistics major road traffic volume Huimang-daero, providing items such as 1:00, 2:00, 3:00, 4:00, 5:00, 6:00, 7:00, and 8:00.

    RESTReview requiredNo restriction
  28. Pohang-si, Gyeongsangbuk-do – Average Speed of Major Roads by Time Slot

    Pohang-si, Gyeongsangbuk-do · Gyeongbuk Pohang · Transportation & Logistics › Roads › Traffic Volume and Flow · Updated 2025-02-25
    25 requests

    Data on the average speed of major roads by time slot in Pohang-si, Gyeongsangbuk-do, provided with items such as average speed, sequence, time, and date.

    RESTReview requiredNo restriction
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