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Ansaldo STS Train Control and Signalling Systems and Services

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.

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Press Release

Delhi Metro Rail Corporation Awards Noida Metro Contract to Ansaldo STS-led Consortium

The Delhi Metro Rail Corporation (DMRC) has been authorised by Noida Metro Rail Corporation (NMRC) to proceed with the implementation of Metro Rail System for Noida - Greater Noida Corridor.

White Papers

Satellite Technologies for New Cost-Efficient Train Control Systems

Ansaldo STS is a world leading provider of signalling solutions that are based on the ERTMS-ETCS platform, which has become the de facto global standard with more than 37,000km contracted worldwide and more than 8,000km in operation.

Ansaldo STS

Via Paolo

Mantovani 3-5





Ansaldo STS Images

Press Release

15 September 2016

Ansaldo STS awarded MYR168.7m signalling within KTMB’s Klang Valley railway.

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14 September 2016

Ansaldo STS awarded $42m contract to design and build a new signalling system for LIRR.

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8 September 2016

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').

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4 September 2016

Ansaldo STS will be exhibiting at the 11th InnoTrans 2016 Trade show, due to take place in Berlin, Germany.

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1 September 2016

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.

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1 September 2016

The Delhi Metro Rail Corporation (DMRC) has been authorised by Noida Metro Rail Corporation (NMRC) to proceed with the implementation of Metro Rail System for Noida - Greater Noida Corridor.

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19 August 2016

Ansaldo STS was awarded a $338 million contract from Massachusetts Bay Transportation Authority (MBTA) to furnish a complete positive train control (PTC) system on their entire commuter rail network.

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20 June 2016

As members of the ARH consortium (including Ansaldo STS SpA, RSEA Engineering Corp. and Hitachi, Ltd.), Ansaldo STS and Hitachi have signed a turnkey contract with New Taipei City Government Department of Rapid Transit System (NTCG DORTS).

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9 February 2016

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.

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4 January 2016

Ansaldo STS awarded $31.5m contract for new signalling and train control system for LACMTA.

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Regional Offices

Ansaldo STS

Via Paolo

Mantovani 3-5




Andrea Razeto www.ansaldo-sts.com
Ansaldo STS Australia Pty Ltd

11 Viola Place

PO Box 1168

Eagle Farm


QLD 4009


+ 61 7 3868 9333
Ansaldo STS France

4 Avenue du Canada CS 70243

91978 Courtabœuf Cedex


+33 1 69 29 6376
Ansaldo STS USA Inc.

1000 Technology Drive

Pittsburgh, PA


United States of America

+1 803-532-4432 / 1-800-652-7276 +1 803-532-2940
Ansaldo STS UK Limited

2.04 The Euston Office

One Euston Square

40 Melton Street



United Kingdom

+44 203 574 4980
Ansaldo STS Malaysia Sdn Bhd

Level 10, Plaza Pengkalan

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

51100 Kuala Lumpur


+ 60 3 4145 8000
Ansaldo STS Transportation Systems India Private Limited

SLV Complex, AVS Compound

#35, 80 Feet Road, 4th Block


Bangalore 560 034


+91 80 4340 0200 80 6694 9200
Ansaldo STS Deutschland

Brunhildenstraße 27

80639 München


+49 89 6735919 0
Ansaldo STS Sweden AB

Solna Strandväg 80

PO Box 6066, SE-171 06 Solna


+46 8 621 9500 +46 8 621 1424
Ansaldo STS España, S.A.

Calle María de Molina nº 40 1ª Planta

28006 Madrid


+34 91 325 45 00 +34 91 325 45 01

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