Bangkok, Thailand — Siemens Mobility, in collaboration with its consortium partners Bozankaya and ST Engineering Urban Solutions (Thailand) Ltd., has solidified its position as a key player in Thailand’s transportation sector by securing significant contracts for both urban and intercity rail projects. These include pivotal upgrades to Bangkok’s Metropolitan Rapid Transit (MRT) Orange and Blue Lines, alongside the ambitious Den Chai–Chiang Rai–Chiang Khong double-track railway project in Northern Thailand.
The contracts represent a landmark moment for Siemens Mobility, with completion timelines spanning from 2024 to 2039. Spearheaded by CH. Karnchang Public Company Limited and Bangkok Expressway and Metro Public Company Limited, these initiatives aim to enhance the efficiency, capacity, and sustainability of Thailand’s public and mainline rail systems.
A Comprehensive Overhaul for Bangkok’s MRT Lines
Orange Line: 32 Trains, Cutting-Edge Systems, and Maintenance
The MRT Orange Line, a critical east-west link in Bangkok’s transit network, is poised for a transformative upgrade. Siemens Mobility, in partnership with Bozankaya and ST Engineering Urban Solutions, will deliver 32 three-car trains equipped with modern passenger amenities, including spacious interiors, robust air conditioning, and advanced information systems.
The 35.9-kilometer Orange Line spans both underground and elevated sections, connecting key areas across the city. Siemens Mobility’s scope includes the integration of rolling stock, signaling, communications, platform screen doors, and passenger information systems. These upgrades promise to enhance passenger comfort while reducing the system’s carbon footprint through energy-efficient solutions aligned with Bangkok’s sustainability goals.
In addition to train delivery, Siemens Mobility has been entrusted with a long-term maintenance contract for the Orange Line, ensuring consistent reliability and operational excellence for years to come.
Blue Line: Enhanced Capacity and Technology
The MRT Blue Line, a vital 48-kilometer artery serving Bangkok with 38 stations, will also see significant upgrades. Siemens Mobility’s contract includes the supply of 21 new trains and enhancements to the line’s signaling and Supervisory Control and Data Acquisition (SCADA) systems.
Building on its decades-long involvement with the Blue Line since 2002, Siemens Mobility will provide comprehensive maintenance services for the new trains and existing systems. This commitment ensures the Blue Line’s operational efficiency and reliability until 2039.
Boosting Intercity Connectivity with the Den Chai–Chiang Rai–Chiang Khong Project
In Northern Thailand, Siemens Mobility is spearheading the expansion of intercity rail connectivity with the Den Chai–Chiang Rai–Chiang Khong double-track railway project. Covering a total of 219 kilometers across two segments, the project will connect Ngao to Chiang Rai and Chiang Rai to Chiang Khong, encompassing 18 new stations.
Siemens Mobility’s contribution includes advanced signaling and telecommunications systems, such as Centralized Traffic Control (CTC) and Automatic Train Protection (ATP) systems compliant with European Train Control System (ETCS Level 1) standards. Key components of the signaling system include the Trackguard Westrace MKII interlocking, Controlguide Rail9000 CTC/LCP, and Clearguard ACM250 axle counters.
Most of the engineering and implementation will be carried out locally in Thailand, with support from Siemens experts based in Spain, Australia, and Germany. This approach underscores Siemens Mobility’s commitment to fostering local expertise and ensuring seamless project execution.
With over 30 years of experience in Thailand, Siemens Mobility has cemented its reputation as a loyal partner in the country’s rail infrastructure development. The company’s legacy includes groundbreaking contributions such as Bangkok’s first elevated mass transit system in 1994 and its first subway line in 2004.
“Our technology already serves over a million passengers in Bangkok daily, reducing congestion and travel times,” said Michael Peter, CEO of Siemens Mobility. “The delivery of 53 new trains, along with advanced signaling systems and long-term maintenance services, will allow even more people to travel quickly and emission-free. We are proud to help Bangkok grow sustainably and shape travel for generations to come.”