Siemens Mobility is to modernise three lines of São Paulo’s transport network in Latin America’s largest automatic train operation (ATO) over European Train Control System (ETCS) project.

This ATO over ETCS Level 2 signalling project covers 140km of track and 46 stations across three commuter lines. The contract includes equipping more than 130 vehicles with Trainguard ETCS on-board units

Siemens Mobility has secured the contract from Trivia Trens (triviatrens.gupy.io) to deliver and implement a complete, digital signalling system featuring ATO over ETCS Level 2 for São Paulo’s commuter rail lines 11-Coral, 12-Sapphire and 13-Jade. The project marks Latin America’s largest implementation of this rail signalling technology.

The contract includes equipping 107 trains, six MRS locomotives, three Trivia locomotives and 17 auxiliary vehicles (yellow fleet) with Trainguard ETCS on-board units.

“This landmark project demonstrates our commitment to bringing cutting-edge rail technology to Latin America,” said Marc Ludwig, CEO of rail infrastructure at Siemens Mobility (www.mobility.siemens.com). “By implementing ATO over ETCS Level 2 in São Paulo’s busy metropolitan transportation network, we’re setting new standards for automated urban rail transportation in the region and up to 30% increased network capacity. Together with our client, we implement the largest ETCS Level 2 project in South America.”

The scope includes the design, supply, installation, commissioning and assisted operation of the signalling system across the three lines, equipping various train types from various manufacturers with Trainguard ETCS onboard units. The package encompasses key such as an advanced traffic management system (ATMS), modern interlocking systems, radio block centre (RBC) and complete trackside equipment, backed by a two-year warranty period and spare parts provision.

ATO over ETCS combines two systems to increase operational efficiency and safety. While the ETCS Level 2 provides continuous digital supervision and control of train movements via Tetra, the ATO system automates driving functions to grade of automation (GoA) Level 2. This technological integration enables precise acceleration and braking patterns, exact stopping at platforms, and optimised headways between trains.

The implementation of this technology should transform São Paulo’s commuter rail line operations through enhanced service frequency and reliability. The system’s driving algorithms reduce energy consumption and peak power demand, while its streamlined architecture lowers maintenance requirements. With fewer trackside components and the ability for future upgrades, this represents a future-proof investment for São Paulo’s expanding mobility needs.