Copenhagen’s Ring 3 Light Rail Hits 1M Riders

Edward Walgwe

June 23, 2026
4:04 pm

Copenhagen’s Ring 3 light rail has carried one million passengers in just seven months, far exceeding expectations and signaling a rapid shift in commuter habits across the western suburbs.

The milestone arrived faster than anyone predicted. Hovedstadens Letbane, the new light rail circling the capital along Ring 3, crossed the one million passenger mark this week, roughly seven months after the first stretch opened between Ishøj and Rødovre Nord on October 26, 2025. For those of us who’ve watched Denmark slowly embrace trams and light rail, this is a rare piece of good news in a country where infrastructure projects often run late and over budget.

I’ve spent years cycling through the suburbs along Ring 3, and the need for a cross-cutting transit link was obvious. The radial S-train lines pull everyone toward the center, and the motorways are clogged during rush hour. Now, residents of Lyngby, Vallensbæk, and Brøndby can skip the detour through Copenhagen Central and travel directly across the ring.

Faster Growth Than Forecast

As reported by Vallensbæk Kommune, the early numbers speak for themselves. Within three months, around 400,000 passengers had already used the service, about 50 percent more than expected. Daily ridership quickly settled at around 5,600 passengers on weekdays, 60 percent above initial projections.

Henrik Rasmussen, mayor of Vallensbæk and board member of Hovedstadens Letbane, called the figures proof that Danes will change their transport habits when given a real alternative. “When we make it easier to choose public transport, people do,” he said. The line currently runs every ten minutes, but from August, frequency will increase to every five minutes during weekday daytime hours.

Full Line Opening This Summer

The northern extension from Rødovre to Lundtofte, just above Lyngby, is scheduled to open in August 2026. That will add 17 new stations and connect the line to DTU, two major hospitals, and a cluster of office parks and universities along the 28-kilometer route. The operator expects 12,000 daily passengers once the full line is running, rising to around 38,000 by 2030.

For now, the company forecasts 2.4 million passengers in 2026. Given the current trajectory, that figure looks conservative. Driftsdirektør Søren Boysen noted that 92 percent of passengers reported being satisfied or very satisfied with their journey, and happy riders bring friends.

A Regional Gamble Paying Off

Hovedstadens Letbane is owned jointly by Region Hovedstaden and 11 municipalities, including Ishøj, Vallensbæk, Hvidovre, Albertslund, Brøndby, Rødovre, Høje-Taastrup, Herlev, Gladsaxe, Glostrup, and Lyngby-Taarbæk. Each municipality has tied urban development plans to the stations, betting on transit-oriented growth. The region has framed the project as a climate investment and a way to relieve pressure on motorways and the S-train core.

I remain cautiously optimistic. Light rail projects in Aarhus and Odense took years to find their footing, and both cities grappled with budget overruns and construction delays. Aarhus Letbane now carries over 6.3 million passengers a year, while Odense logged nearly 7 million in 2024. Those are mature systems. Ring 3 is still in its infancy.

Context for Expats

For expats living along the western arc of the capital region, the light rail changes the commute equation. If you work at DTU, Herlev Hospital, or one of the industrial zones in Glostrup or Ballerup, you no longer need to drive or take two buses. The trains run frequently, allow bikes and strollers onboard for free, and integrate with the Rejsekort system.

That said, expect adjustments. Traffic patterns around stations are still being sorted out, and cycling infrastructure near some stops remains patchy. Local roads weren’t designed for this volume of cross-traffic, and municipalities are scrambling to add bike parking and regulate drop-off zones.

Comparing Denmark’s Light Rails

The Ring 3 line is Denmark’s third major light rail system. Aarhus opened first and has logged more than 30 million total passengers since launch. Odense followed, and has seen ridership climb sharply after fare reductions and improved service. Both cities show that ridership grows steadily if the system runs reliably and tickets stay affordable.

Ring 3 benefits from lessons learned in both cities. The trains are modern, the frequency is high, and the route serves real travel demand rather than symbolic connectivity. Still, the test will come when construction crews leave and everyday operations settle in. Will the municipalities maintain the stations, keep buses coordinated, and resist the temptation to prioritize car lanes at intersections?

What Happens Next

August will be the real moment of truth. When the northern section opens and trains run every five minutes, the line will connect eight municipalities, pass two hospitals, and serve DTU and a string of corporate campuses. That’s when the 38,000 daily passengers by 2030 either become plausible or reveal themselves as wishful thinking.

For now, one million passengers in seven months is a strong start. It shows that demand exists and that people will ride if the service is there. Whether the momentum holds depends on how well the system integrates with the rest of the region’s transport network and whether the municipalities keep investing in the stations and surrounding neighborhoods.

I’ll be watching the August numbers closely. Light rail works when it’s faster and easier than driving. In a country where police recently asked DTU to review drone evidence and where cycling remains the default for short trips, the bar is high. But if Ring 3 can keep growing at this pace, it might finally give the western suburbs the transit backbone they’ve needed for decades.