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Korea Expressway Traffic (Korea Expressway Corporation)

Korea, TransportationBeta
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Overview

Live traffic, congestion, tollgate travel times, the daily city-to-city forecast, incidents and notices, the tollgate catalog, toll fares and rest areas of South Korea's expressways from the Korea Expressway Corporation's public data portal (한국도로공사 고속도로 공공데이터 포털).

Status

Down

85.42%30-day uptimeAvg response740ms

2026-10-132026-10-162026-10-19

Setup

Auth mode
Managed key
Credentials
  • A managed key scoped to korea-expressway-traffic
Sandbox
Not available

APIs

Selecting a row opens the reference for that API.

MethodAPIPathSummary
POST/v1/korea-expressway-traffic/get-city-travel-forecastReads today's nationwide traffic forecast: the expected vehicle volume nationwide, outbound and inbound (toward Seoul), and the forecast car and express-bus travel time between Seoul and Daejeon, Daegu, Ulsan, Busan, Gwangju, Mokpo and Gangneung in both directions, plus Namyangju and Yangyang. Use it for planning a long drive today. Do not use it for the live time between two tollgates (get-travel-time). Returns the forecast date and time, the volumes and the 16 city pairs.
POST/v1/korea-expressway-traffic/get-realtime-trafficReads the latest sample of every vehicle-detector section of one expressway route: speed, vehicle count, occupancy, section travel time and the congestion level (smooth, slow, congested or unknown), optionally for one direction only. Use it to see how a whole route is flowing right now. Do not use it to find congestion nationwide (list-congested-sections) or for a tollgate-to-tollgate time (get-travel-time). Returns the route, the sample time and every section with its figures.
POST/v1/korea-expressway-traffic/get-toll-fareReads the toll between two tollgates for the six vehicle classes, in won, with one segment per road operator on the way (distance by lane count, drive time, number of routes, discount windows) and the per-class total. Use it to say what a drive will cost. Do not use it for the travel time right now (get-travel-time). Returns the pair, the totals and the segments; a pair the toll system cannot route is NO_DATA.
POST/v1/korea-expressway-traffic/get-travel-timeReads the latest measured travel time between two tollgates for one vehicle class, as a 15-minute or hourly bucket: average, median, maximum and minimum seconds and the bucket's clock time. Use it to say how long a drive between two tollgates is taking now. Do not use it for a fare (get-toll-fare) or a city-to-city forecast (get-city-travel-forecast). Returns the pair, bucket and vehicle class with the times; a pair without a sample in the latest bucket is NO_DATA.

Related guides

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POST/v1/korea-expressway-traffic/list-congested-sectionsLists the expressway sections the portal currently grades as congested across the whole country, or on one route, with speed, vehicle count and the sample time. Use it to find where traffic is stuck right now. Do not use it for a full picture of a route (get-realtime-traffic). Returns the sections and their count; an empty list means nothing is congested.
POST/v1/korea-expressway-traffic/list-incidentsLists the portal's live road messages, newest first as the portal orders them: accidents, breakdowns, obstacles, roadworks, congestion, weather warnings, lane and full closures and notices, each with its route, direction, location, time, status, blocked lanes, congestion length and coordinates, optionally one type only. Use it to see what is happening on the expressways right now. Returns one page of incidents with the total count.
POST/v1/korea-expressway-traffic/list-rest-areasLists the rest areas (including drowsy-driver stops) and gas stations of one expressway route with direction, address, phone, parking capacity, the regional office and, where the portal has them, coordinates; optionally one kind or one direction. Use it to find where to stop on a route. Returns every facility of the route with the count.
POST/v1/korea-expressway-traffic/list-tollgatesLists expressway tollgates with their code, name, operator (Korea Expressway Corporation or a private concession) and toll system (closed or open), optionally those whose name contains a text or of one system. Use it to find the tollgate codes that get-travel-time and get-toll-fare take. Returns one page of tollgates with the total count.
City-to-city forecast
Live traffic by route
Toll fare
Tollgate travel time
Quickstart
Managed keys
Overview
Error model
Congested sections
Incidents and notices
Rest areas by route
Tollgate catalog