BlueCL
KORAIL Easy / Mobility & public data

Your direction. Your next useful train.

KORAIL Easy is a route-focused train guidance web app for Yongsan and Bucheon. It combines live train information and configured platform guidance in a readable screen.

Open live service GitHub · Source

Development complete

Three steps

From the first step to a useful result.

  1. 01

    Choose a direction

    Select Yongsan → Bucheon or Bucheon → Yongsan.

  2. 02

    Read the next departure

    Compare local and express guidance with the arrival information.

  3. 03

    Check freshness

    Read freshness indicators and confirm temporary changes at the station.

PRODUCT / IN VIEW

See the product.

Explore the interface, then open the service, source code or demo using the links above. Select an image to see it in full.

Yongsan to Bucheon — platform and next-train guidance
Yongsan to Bucheon — platform and next-train guidanceLive service capture · October 8, 2026 ↗
Bucheon to Yongsan — route direction and arrival information
Bucheon to Yongsan — route direction and arrival informationLive service capture · October 8, 2026 ↗
Getting started

Start with the right setup.

Access & setup

  1. Open the live service in a browser; no installation is needed.
  2. Use the direction-switch button to choose Yongsan → Bucheon or Bucheon → Yongsan.
  3. Check the platform, destination and arrival time, and refer to station announcements for changes.
Permissions & data

Understand what the workflow uses.

Transit data

The backend combines arrival information and train positions with explicit route and platform rules.

Refresh and caching

Shared caching limits upstream requests, and inactive views pause updates. Check freshness when returning to the page.

This is product usage guidance. The BlueCL website privacy notice covers this company website; consult the service’s own documentation for its deployed data handling. Website privacy ↗

Behind the product

How the product works.

Choosing a direction, distinguishing local from express trains and checking the next useful departure can require scanning multiple pieces of station information.

01Route selectionYongsan ↔ Bucheon
02Public transit dataArrival information + train positions
03Backend rulesCache · freshness · configured platforms
04Guidance screenNext train and platform view
Implementation details

The FastAPI backend combines records by train number and filters stale position data. Platform numbers come from application configuration because the source API does not provide them. The frontend requests updates while active, and the Redis-backed deployment shares cache and request budgets across instances.

Further improvements

Improve freshness indicators and expand route coverage after validating each route’s data and platform rules.

When you need a hand

Frequently asked questions.

Which routes are supported?

The current implementation focuses on Yongsan and Bucheon in both directions.

Are platform numbers provided by the API?

No. Platform guidance comes from application configuration; station signage is the reference for temporary changes.

How does the screen update?

The service refreshes automatically and shows the last-check time. Check that time when using the guidance.

Product and source information updated: October 8, 2026