Skip to main content

Leading the way to greener and smarter mobility, worldwide.

Our ambition is to accompany all transportation stakeholders in meeting tomorrow’s mobility challenges. We strive to provide them with the most efficient and digital mobility systems, while further improving the environmental friendliness of our solutions. 

Smart innovation for sustainable mobility

Follow us on

A comprehensive portfolio of mobility solutions

We offer a complete range of equipment and services, from high-speed trains, metros, trams and e-buses to integrated systems, customised services, infrastructure, signalling and digital mobility solutions.

Discover our solutions

Follow us on


Find the latest Alstom press releases and news, press kits, your regional press contacts and more!

Enter the newsroom

Follow us on

The one stop shop for all relevant information for investors and shareholders

Access our financial & share information, our financial calendar and results, regulated information, shareholders' meetings and investors' contacts & presentations.

See more

Follow us on

You know we make trains move. Discover how we move the world.

At Alstom, we value curious and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable. We are building an agile, inclusive, and responsible culture, where diverse people are offered opportunities to learn, grow and advance in their careers, with options across functions and geographies.

Learn more

European Rail Traffic Management System (ERTMS) world

Press Contacts

Visit our media section and follow the link "Press contacts"

When fully introduced,
standards will allow rail interoperability between participating
European countries, enhancing rail service performance while
lowering operating costs for freight and passenger rail
operators. ERTMS is an industry-wide response to CEE initiatives
calling for the development of such highly advanced technology.
The CEE believes that developing and integrating this next
generation of signaling will do much towards alleviating road
congestion and related problems such as truck and automobile
accidents and air pollution.

On 23-24 November, an important milestone was achieved on a
section of French high-speed rail line known as TTF (Test Track
France) and used for testing signaling equipment compatible with
new pan-European signaling standards known as ERTMS. For the very
first time, a train has been able to proceed along the line
receiving authorization for movement successfully from
radio-emitted signals coming from several Radio-Block Centers
(RBC), rather than the traditional track-side balise
equipment.The hand-over from one RBC to an adjacent one was
performed automatically.

The event took place during a technical visit that had been
organised, together with a conference, by RFF (Reseau Ferré
de France, responsible for France's rail infrastructure); SNCF
(French National Railways) and ALSTOM along with other private
industry rail supply companies, for a group of 65 engineers of
the IRSE, the Institution of Railway Signal Engineers UK
organisation with international representation.

The French Test-Track includes two distinct parts:

  • a 30km section of the High-Speed-Line branch east of Paris
    which links the 'TGV-Nord' and 'TGV-Sud-Est' (South-East TGV
    line) and includes the new stations of Roissy-Charles-de-Gaulle
    airport and Eurodisney leisure
  • a 10km section of a suburban line
    ('Tournan-Marles-en-Brie') at a junction with the

ERTMS is being tested in both environments (High-Speed-Line
and suburban line) and also being tested are the 'STMs' or'
Specific Transmission Modules' used for RFF-SNCF standard types
of 'ATP'(Automatic Train Protections) that are currently in

It is the first world demonstration of ERTMS with
ALSTOM-designed KVB-STM (track-side speed control) for use on
conventional French rail lines.

KVB - the 'Contrôle de Vitesse à Balises'
(Beacon-based Speed Control system) - is an ALSTOM-designed ATP
system used by most of France's rail network and rolling stock.
Over 140, 000 beacons, over 15, 000 signals and speed limit
positions and more than 7, 000 pieces of rolling stock are
equipped with KVB; and KVB system protects more than 95% of
French National Railways traffic, (in passengers x km for
passenger traffic and tons x km for freight), making RFF-SNCF
network one of the worlds most efficiently protected rail

Demonstrations are carried out on RFF-SNCF Test Tracks for
ERTMS Levels 1 and 2. Three levels have been envisaged in all,
the third still in development.

The implementation of ERTMS equipment and the testings on
'TTF' continue. Another major step will come in 2002 with the
implementation of the latest version hardware and
software- of the RBC, fully compliant with the latest version of
ERTMS Specifications.