Alstom to Modernise Train Control at Mauá Norte Yard With SIL 4 Signalling System

Alstom to Modernise Train Control at Mauá Norte Yard With SIL 4 Signalling System

(IN BRIEF) Alstom has signed a contract with CPTM to supply and implement the signalling system for the new Mauá Norte Yard on Line 10-Turquoise in Greater São Paulo. The yard, located between Mauá and Capuava stations, includes six tracks for shunting, train formation and trainset stabling. The project covers electronic interlocking, track switch control equipment, trackside signals, train occupancy detection, CCTV, access control, telecommunications and dedicated railway radio communication. The equipment will meet Safety Integrity Level 4 standards. The signalling system will improve safety and operational efficiency by giving controllers real-time visibility of track occupancy, supporting better train allocation and reducing reliance on manual procedures. The project will be delivered over 18 months, followed by six months of operational monitoring and a two-year warranty.

(PRESS RELEASE) SAINT-OUEN-SUR-SEINE, 16-Jul-2026 — /EuropaWire/ — Alstom has signed a contract with Companhia Paulista de Trens Metropolitanos to supply and implement the railway signalling system for the new Mauá Norte Yard, part of Line 10-Turquoise in Greater São Paulo.

The new yard, built by CPTM between Mauá and Capuava stations, includes six tracks for shunting, train formation and the stabling of trainsets outside operating hours.

Under the agreement, Alstom will provide a complete signalling system designed to improve safety, operational efficiency and control of train movements within the yard.

The scope includes supply, installation, testing and commissioning of electronic interlocking, field equipment for operating and controlling track switches, trackside light signals and train occupancy detection. The equipment will comply with Safety Integrity Level 4, the highest international standard for safety reliability.

Alstom will also supply auxiliary subsystems, including closed-circuit television, access control, telecommunications infrastructure and dedicated railway radio communication.

The new signalling system is expected to provide safer and more reliable operations compared with processes based only on manual procedures or yard operating rules. It will help prevent operational conflicts with the main line and provide controllers with real-time visibility of track occupancy.

For CPTM, the system will support stronger operational control and more efficient use of the Mauá Norte Yard. For workers, it will help reduce reliance on manual interventions, supporting safer operating conditions. For passengers, it is expected to contribute to greater reliability by helping reduce operational impacts, delays and failures.

The solution has been developed and supplied locally by Alstom and has already been deployed in several projects across Latin America. Alstom said the use of Brazilian labour throughout the project reinforces its commitment to developing local talent and strengthening domestic industry.

Suely Sola, Managing Director of Alstom Brazil and Signalling & Infrastructure for Latin America, said a reliable and highly available signalling system is essential for optimising the yard’s operational management.

“A highly reliable and available signalling system is essential to optimize the operational management of the yard, enabling better allocation of trainsets, increased operational capacity, and reduced service delays and failures,” said Sola.

She added that the project reaffirms Alstom’s commitment to technological innovation and the continued development of transport infrastructure in the region.

The project will also involve adaptation and integration of existing signalling systems in the adjacent Capuava and Mauá areas, ensuring interoperability and continuous communication between systems.

The operational architecture will include a local control centre at the yard and two remote supervision posts, fully integrated with Line 10-Turquoise’s Operational Control Centre. This will enable real-time monitoring, centralised traffic management and more efficient operational decision-making.

Michael Cerqueira, President of CPTM, said automation at Mauá Yard is another step in CPTM’s modernisation process.

“With remote operation integrated with the Operational Control Center, we are increasing efficiency, strengthening operational safety and making shunting operations even faster and more reliable,” said Cerqueira.

Alstom will execute the project over 18 months. After completion, the company will monitor operations for an additional six months to ensure that all systems are functioning properly. The contract also includes a two-year warranty.

Alstom has been present in Brazil since 1955 and has contributed to the development of the country’s infrastructure and mobility systems. The company is a leading player in Brazil’s rail mobility market and has the largest installed signalling base in Latin America, with more than 7,350 kilometres of signalling and over 2,000 onboard systems in operation.

In Brazil, Alstom supplies rail transport solutions to major passenger operators in cities including São Paulo, Rio de Janeiro, Porto Alegre, Recife, Brasília and Belo Horizonte. Its rolling stock, control and signalling technologies are also used in mobility projects across Latin America and other international markets.

Alstom Brazil also develops and delivers advanced signalling technologies, including 2oo3 electronic interlocking systems using CMT-MUX technology. This locally developed and supplied platform has been deployed across several metro systems in the region and has demonstrated high levels of reliability, safety and operational performance.

Alstom Brazil

Present in Brazil since 1955, Alstom has been actively contributing to the development of infrastructure and mobility in the country, promoting social progress while respecting the environment. A leader in rail mobility in the Brazilian market, the company also holds the largest installed signalling base in Latin America, with more than 7,350 kilometers of signalling and over 2,000 onboard systems in operation, making it the largest installed base in the region.

Alstom promotes mobility through all its product lines for rail transport, supplied to the country’s main passenger transport operators in Brazil, in cities such as São Paulo (SP), Rio de Janeiro (RJ), Porto Alegre (RS), Recife (PE), Brasília (DF) and Belo Horizonte (MG). Rolling stock manufacturing and control and signalling systems — which ensure the safe movement of trains — are also present in mobility projects in other countries across Latin America and around the world, including South Africa, Argentina, Colombia, Chile, Ecuador, the United States, Mexico, Panama, Peru, the Dominican Republic, Romania and Taiwan.

In Brazil, Alstom also develops and delivers advanced signalling technologies, such as 2oo3 (two-out-of-three) electronic interlocking systems using CMT-MUX technology. This modern, proven platform, developed and supplied locally, has been successfully deployed across several metro systems in the region, including recent implementations in Brazil, consistently demonstrating high levels of reliability, safety, and operational performance.

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About Alstom

Alstom is the pure rail leader, committed to making rail the backbone of sustainable transportation. We design and deliver a complete range of future-ready solutions – from high-speed and regional trains to metros, monorails, trams, turnkey systems, end-to-end services, infrastructure, signalling and digital rail solutions. With 87,800 people in 61 countries, Alstom brings together global expertise and multi-local presence to make every journey smarter, cleaner and more enjoyable. Together with our partners and customers, we realise the power of rail. Listed in France, Alstom generated revenues of €19.2 billion for the fiscal year ending 31 March 2026.

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Media Contact:

Vinicius Riqueto
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vinicius.riqueto@alstomgroup.com

SOURCE: Alstom