A New Algorithm to Predict Train Delays

An algorithm developed in Sweden adds an extra layer of reliability for rail commuters.

1 minute read

September 10, 2015, 2:00 PM PDT

By James Brasuell @CasualBrasuell


"Mathematicians in Sweden have developed a new algorithm that can predict when trains will be delayed, letting commuters avoid delays and better plan their travel," reports Andrew Liszewski.

"These days the exact position and location of commuter trains are tracked to give passengers an accurate ETA of when one will be rolling into a station," Liszewski notes, but the new algorithm does one better. "Stockholmståg has found a way to use that data to also predict the ripple effect a single delay has on its entire system." Short of predicting an accident, the algorithm can help commuters make the most of the days when things aren’t going according to plan.

Wednesday, September 9, 2015 in Gizmodo

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

30 minutes ago - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

1 hour ago - Streetsblog USA

Aerial view of flooding during Hurricane Helene in North Carolina.

‘Quality Work, Fast’: NC Gears up for Homebuilding After Helene, Trying to Avoid Past Pitfalls

The state will field bids to demolish, repair and rebuild homes in the mountains. After struggles in eastern NC, officials aim to chart a different course.

2 hours ago - NC Newsline

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.