A Japanese consortium led by Tokyu Corporation will begin testing modular data centers installed directly beneath active railway tracks in Tokyo starting in June 2026 to address space constraints.

Key Points

• The pilot project will test server stability under constant vibration, noise, and temperature fluctuations beneath the Oimachi Line.
• Participating companies include Tokyu Corporation, Tokyu Railways, It’s Communications, and Tokyu Construction.
• The modular units integrate servers, cooling, and power systems into compact enclosures to bypass the need for new building construction.
• Researchers will evaluate sound, thermal, and vibration insulation to determine if the infrastructure can support low-latency data processing.
• The project leverages existing fiber optic networks along rail lines to integrate data centers into the city's communication backbone.

Why it Matters

• This experiment addresses the critical shortage of available land for digital infrastructure in dense urban centers like Tokyo, where property prices have surged. By utilizing existing railway corridors, companies may find a scalable way to expand computing capacity without requiring new real estate acquisitions.