What Is 3rd generation S-train
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Last updated: April 17, 2026
Key Facts
- Introduced in 2006, the 3rd generation S-train operates on Copenhagen’s S-tog network
- Features fully automated operation with driver supervision (GoA 2 automation level)
- Includes air conditioning, low floors, and digital passenger information systems
- Built by Siemens Mobility and DSB, with 85 units produced between 2006 and 2019
- Operates at a top speed of 120 km/h and serves 38 stations across 163 km of track
Overview
The 3rd generation S-train, also known as the S-tog MX3000 series, began operation in Copenhagen, Denmark, in 2006. Designed to modernize the city’s suburban rail network, it replaced aging second-generation trains with enhanced safety, comfort, and efficiency.
This generation marked a significant shift toward automation and accessibility. It supports high-frequency service across the region, serving over 300,000 passengers daily during peak times.
- Introduced in 2006: The first MX3000 train entered service on the Hillerød line, marking the start of a phased rollout across all S-tog lines by 2019.
- Manufactured by Siemens and DSB: A joint production effort resulted in 85 trainsets, each consisting of four cars, built between 2006 and 2019.
- Full air conditioning: Unlike earlier models, all third-gen trains feature climate control, improving passenger comfort year-round.
- Low-floor design: Enhances accessibility for passengers with reduced mobility, strollers, and bicycles, with level boarding at platforms.
- Automated operation: Operates under GoA 2 (Grade of Automation 2), where trains drive automatically but are monitored by onboard staff.
How It Works
The 3rd generation S-train integrates modern rail technology with urban transit demands, offering reliable, high-capacity service in Copenhagen’s dense network.
- Automatic Train Operation (ATO): Trains accelerate and brake automatically using onboard systems, reducing human error and improving schedule adherence.
- Communication-Based Train Control (CBTC): Uses continuous two-way radio communication between trains and control centers for real-time monitoring and safety.
- Regenerative braking: Converts braking energy into electricity, feeding up to 25% back into the overhead grid, improving energy efficiency.
- Digital passenger displays: Real-time information on next stops, transfers, and delays is shown inside cars and on platform screens.
- Wider doors and open gangways: Facilitate faster boarding and alighting, increasing throughput during rush hours.
- Improved crashworthiness: Designed to meet modern crash standards, including crumple zones and reinforced passenger compartments.
Comparison at a Glance
Below is a detailed comparison of the three generations of S-trains used in Copenhagen:
| Feature | 1st Gen (1934) | 2nd Gen (1967) | 3rd Gen (2006) |
|---|---|---|---|
| Introduction Year | 1934 | 1967 | 2006 |
| Top Speed | 90 km/h | 100 km/h | 120 km/h |
| Automation Level | GoA 0 (Manual) | GoA 0 (Manual) | GoA 2 (Semi-Automatic) |
| Passenger Capacity | ~400 per train | ~500 per train | ~600 per train |
| Accessibility | Steps and narrow doors | Limited low-floor access | Full low-floor, wide doors |
The table highlights the technological evolution of the S-tog system. The 3rd generation offers the highest capacity, speed, and accessibility, reflecting modern urban transit standards. These improvements support Copenhagen’s goal of sustainable, high-efficiency public transport.
Why It Matters
The 3rd generation S-train plays a vital role in Copenhagen’s public transportation ecosystem, supporting urban growth and environmental sustainability. Its design reflects forward-thinking urban planning and investment in green infrastructure.
- Reduces congestion: High-capacity trains decrease reliance on private vehicles, easing traffic in central Copenhagen.
- Supports urban expansion: Efficient rail service enables development in suburbs like Farum and Køge.
- Improves punctuality: Automation reduces delays, with over 95% of trains arriving on time in 2022.
- Enhances accessibility: Complies with EU standards for inclusive design, benefiting all passenger groups.
- Lowers emissions: Regenerative braking and electric operation reduce the carbon footprint per passenger kilometer.
- Future-ready infrastructure: Designed to integrate with planned upgrades, including full GoA 4 automation in the coming decade.
As Copenhagen continues to grow, the 3rd generation S-train remains a cornerstone of its mobility strategy, combining reliability, comfort, and sustainability.
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Sources
- WikipediaCC-BY-SA-4.0
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