Ansaldo STS - Railway Technology
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Ansaldo STS

Train Control and Signalling Systems and Services

Via Paolo,
Mantovani 3-5,
16151 Italy

Via Paolo,
Mantovani 3-5,
16151 Italy

Ansaldo lead

Ansaldo STS is a leading international technology company operating in the global railway and mass-transit transportation business, providing traffic management, planning, train control and signalling systems and services.

It acts as lead contractor and turnkey provider on major projects worldwide. Ansaldo STS is headquartered in Genoa, Italy, and employs over 4,200 people in 28 countries.

Rail signalling systems

Ansaldo STS provides full service capabilities for signalling and transport systems in the areas of:

  • High-speed rail
  • Mainlines and freight
  • Mass transit and light rail
  • Computer-based interlocking
  • Planning, supervision and traffic control
  • Components
  • Operation and maintenance

High-speed line design, construction, project management, maintenance and financing

Ansaldo STS can carry out design, construction, testing, commissioning, system engineering, system integration, project management, operation, maintenance and project financing of complete high-speed lines or any of their subsystems.

Turnkey rail project management

Ansaldo STS may also act as lead or main contractor or partner for overall transportation systems, including complete high-speed railway systems such as the Italian high-speed network. As lead contractor, Ansaldo STS provides end-to-end timely, successful and on-budget solutions for turnkey projects of any size or complexity, offering the following services:

  • System design
  • Project financing
  • Design, build, finance and operate (DBFO)
  • Build, operate and transfer (BOT)
  • Design, build, operate and maintain (DBOM)
  • System integration with interface management
  • Security
  • Ticketing
  • Operation and maintenance
  • After-sales service

ERTMS upgrades for signalling systems

Ansaldo STS provides full-service capabilities to large railway networks like India, France, Italy and the US. In Europe, the company is central to upgrading to the European Railway Traffic Management System (ERTMS), leading to the interoperability of differing countries’ networks.

Ansaldo STS also pioneered the high-speed railway transportation era by commissioning the very first high-speed signalling system for the first LGV in revenue service in 1981 in France (LGV Paris-Lyon). In 2005, Ansaldo STS set another landmark, by putting into service the first high-speed line running on an ERTMS level two signalling system (AV Rome-Naples, in Italy).

The company’s main business lines in this area are:

  • Operation and traffic control
  • Wayside signalling systems and equipment
  • Computer-based interlocking systems for single main stations or multi-station type for lines
  • On-board automation and vital equipment
  • Operation support systems
  • Communications-based train control
  • Service and maintenance

The most advanced railway networks and mass-transit operators can only rely on the most sophisticated, high-tech and safest components available. Ansaldo STS develops these at three world-leading factories located in Italy, France and the US.

Communication-Based Train Control (CBTC)

Communication-Based Train Control (CBTC) is leading a new era of rail transit control, enhancing flexibility, reducing maintenance costs and improving interoperability. When it's time to decide on a CBTC solution, choose the experience of a proven leader in integrated mass transit signalling and turnkey systems.

FAST Configuration Tool

FAST is Ansaldo STS's suite of tools for design and configuration of the new generation of IXL systems.

Satellite and Telecoms for Train Control System

Ansaldo STS is using the latest satellite and telecom technologies to develop cost-efficient train control systems with greater flexibility, global adaptability and optimised lifecycle costs.

Train Conformity Check System (TCCS™)

The Train Conformity Check System (TCCS™) is a technological system that automatically detects 'irregular conditions' that affect rolling stock in transit.

Navi Mumbai Metro

Navi Mumbai Metro is expected to serve up to 100,000 passengers per day by 2027.

Tours–Bordeaux High-Speed Rail

Also known as the South Europe Atlantic high-speed rail (SEA HSR), Tours-Bordeaux high-speed rail is a massive project under development in France.

Naples-Afragola High-Speed Train Station, Naples

Naples-Afragola is a proposed high-speed railway station in the city of Naples, Italy. Italy's state-owned railway network operator Rete Ferroviaria Italiana (RFI) is responsible for the implementation of the project.

Nîmes-Montpellier Bypass High-Speed Line

France’s Nîmes-Montpellier bypass, also known as Contournement ferroviaire de Nîmes et Montpellier (CNM), will be the first mixed high-speed Ligne à Grande Vitesse (LGV) line dedicated to both passenger and freight transport.

Naples-Bari High Speed Railway Project

The Napoli-Bari high-speed railway project is being undertaken to increase the competitiveness of rail transport and aid in the socio-economic development of Southern Italy. The project is part of a number of strategic infrastructure investments being made under the 'Unlock Italy' initiative launched by the Italian Government.

Warsaw-Radom Line Modernisation

The modernisation of railway line number eight section between Warsaw Okecie and Radom in Southern Poland was initiated in July 2013.

Genoa-Milan High-Speed Railway Line (Terzo Valico)

The Genoa-Milan High-Speed, High-Capacity Railway Line, also known as Terzo Valico dei Giovi (Terzo Valico), is being constructed to improve the railway connections between the Ligurian bay ports and the northern Tyrrhenian Sea ports with railway lines in northern Italy and the rest of Europe.

Glasgow Subway Modernisation Programme, Scotland

Glasgow Subway in Scotland is currently undergoing a modernisation programme that began in July 2011. It is the first full-scale upgrade of the metro system since the renovations between 1977 and 1980.

Ansaldo STS Appointed for Brussels Metro Signalling System Renewal

Ansaldo STS (STS.MI), through its controlled company Ansaldo STS France S.A., has been appointed by Société des Transports Intercommunaux de Bruxelles (STIB) for the assignment of the framework agreement for the design, construction, supply, installation, testing and commissioning, maintenance support option of CBTC-based signalling system including ATS, and system integration of CBTC, ATS, passenger information and passenger announcement for the lines 1&5 and 2&6 of Brussels metro network (the 'Framework Agreement').

Ansaldo STS Awarded Modernisation Contract for Glasgow Subway

The Ansaldo STS - Stadler consortium has won contracts to modernise the subway of Glasgow with state-of-the-art technology. The contracts include the supply of 17 new trains, communication-based train control (CBTC) driverless signalling technology, platform screen doors and depot equipment, and related maintenance support services to upgrade the 10.5km long twin subway lines, and 15 stations of the Glasgow Subway system.

Network Rail Awards Re-Signalling Contract to Ansaldo STS / Linbrooke Services Consortium

After its successive implementations on High Speed One and Cambrian Lines, Ansaldo STS's interlocking technology has been selected for the Network Rail project to re-signal and upgrade the line from Ferriby to Gilberdyke (county of North Humberside). The re-signalling contract has been awarded to the consortium of Ansaldo STS and Linbrooke Services.

Ansaldo STS

Via Paolo

Mantovani 3-5




Ansaldo STS Australia Pty Ltd

11 Viola Place

PO Box 1168

Eagle Farm


QLD 4009


Ansaldo STS France

4 Avenue du Canada CS 70243

91978 Courtabœuf Cedex


Ansaldo STS USA Inc.

1000 Technology Drive

Pittsburgh, PA


United States of America

Ansaldo STS UK Limited

2.04 The Euston Office

One Euston Square

40 Melton Street



United Kingdom

Ansaldo STS Malaysia Sdn Bhd

Level 10, Plaza Pengkalan

3rd Mile, Jalan Sultan Azian Shaha (Jalan Ipoh)

51100 Kuala Lumpur


Ansaldo STS Transportation Systems India Private Limited

SLV Complex, AVS Compound

#35, 80 Feet Road, 4th Block


Bangalore 560 034


Ansaldo STS Deutschland

Brunhildenstraße 27

80639 München


Ansaldo STS Sweden AB

Solna Strandväg 80

PO Box 6066, SE-171 06 Solna


Ansaldo STS España, S.A.

Calle María de Molina nº 40 1ª Planta

28006 Madrid