About Cookies

1. What are cookies?

Cookies are text files that are placed and stored on the hard drive of your terminal (computer, Smartphone, tablet or any other device that can be used to browse the internet) by a website server. 

Some of these cookies are required to access some site functionalities. Others are used to record statistics and site visit figures (number of visitors to each page, geographical origin of the devices used to visit the site, etc.) and statistics concerning the consultation and use of various elements present on the site (sections and content browsed, duration of visit, etc.). They can also be used to provide additional services such as the sharing of content on a website via social networking sites. 

You are not obliged to accept the use of cookies and can choose to refuse them by changing your internet browser settings, as explained below.

To read more about cookies: 

2. Cookies present on Alstom's internet sites

Especially on the following ones:


Functionality cookies or strictly necessary cookies:

Depending on regulations, these cookies can be placed on your digital device without user consent. They are essential for browsing our websites or strictly necessary to provide a service expressly requested by the user. We recommend that you do not delete those cookies as this may hamper browsing. 

Analytical cookies

These cookies enable us to monitor the use and performance of our websites, establish statistics, number of visitors and the use of various site elements (which pages or sections are consulted the most often, which articles are read the most, etc.) to ensure that our services are as interesting and user-friendly as possible. 

These cookies are mostly set by Alstom. Being third-party cookies, they are not saved by us. We therefore suggest that you read the websites of these third parties to find out more about the saved cookies and how they are managed. 

You can refuse these cookies at any time by changing your browser settings as indicated below. 

Sharing cookies (social links)

Our sites contain links to Facebook, Twitter and other similar social media sites that enable you to share the content of our websites with other people via social media. When you use these share buttons, a third-party cookie is installed. 

If you are connected to a social media site when browsing our websites, the share button will allow you to link the content viewed to your social media user account.  If you do not want the social media site to link the information gathered through our sites to your user account, you will need to log out of the social media site first. 

In any case, you can also refuse these cookies by changing your browser settings as described below.

Please read the privacy policies of these social media sites to ensure that you are aware of your rights and the usage purposes, in particular advertising, of browsing information they may collect via these application buttons.

Advertising cookies

A third-party advertising cookie is set by the server of a domain separate from that of the visited site. The most common advertising third-party cookies are generally those used by media sales agencies.

Advertising third-party cookies are used to monitor a network of sites. For example, they are used to collect information about how visitors use a website and can be used to “recognise” an internet user on a number of different sites. In this case, the network management cookie is set or used from the pages of each site through the use of a tag.

We use the following types of cookies on our website (this list was drawn up in August 2014. It is subject to change over time. Please consult the cookies section in your navigator parameters regularly): 

Type of cookie Name of cookie Site issuing cookie Purpose of cookie Status (mandatory / optional) Cookie deactivation
FSGUID alstom.com

Used to store the user session as pages are requested. Mandatory Unavailable
Functional / necessary ASP.NET_sessionId ir1.euroinvestor.com


Used to provide financial information about Alstom share prices.


Mandatory Unavailable
Functional / necessary JSSCounter alstom.com


Used to store the user session as pages are requested.


Mandatory Unavailable
Analytical _utma (Google Analytics) alstom.com
Identify unique visitors. Optional Cookie deactivation
Analytical _utmb (Google Analytics) alstom.com





Track the session of an internet user.

This cookie works alongside the _utmc cookie

Optional Cookie deactivation 
Analytical _utmc (Google Analytics) alstom.com







Determine whether the current unique visitor is making a new visit.


Optional Cookie deactivation
Analytical _utmz (Google Analytics) alstom.com






Store all information required to identify a traffic source (traffic source, traffic source media, keyword typed in if the internet user visits the site via a search engine, etc.) Optional Cookie deactivation
Share dt addthis.com


Manage the expiry date of other cookies.

You can opt out of AddThis cookies from all websites by visiting:http://www.addthis.com/advertising-choices


Optional Cookie deactivation
Share uid addthis.com


Recognise a visitor when they return to the site.


Optional Cookie deactivation
Share uit addthis.com


Record share activity via social media sites on the website.


Optional Cookie deactivation 
Share uvc addthis.com


Update the counter monitoring the sharing of content via social media sites.


Optional Cookie deactivation 
Share loc addthis.com


Geolocate, within a State, the people sharing content via social media sites.


Optional Cookie deactivation
Share _atuvc addthis.com


Update the counter monitoring the sharing of content via social media sites.


Optional Cookie deactivation
Share bt2 addthis.com Anonymously store viewed content. Optional Cookie deactivation
Share di2 addthis.com


Check the expiry dates of other cookies.


Optional Cookie deactivation
Share Xtc Addthis.com


Anonymously tracks user behaviour on the websites that allow a user to share pages on social media using the AddThis tool. AddThis log the anonymous use to generate usage trends to improve the relevance of their services and advertising.


Optional Cookie deactivation
Share Visitor_info1_live Youtube.com


Estimate the size of the bandwidth. Decide to use new or previous video interface.


  Cookie deactivation 
Share YSC Youtube.com


Create a unique ID when the visitor watches a video.


  Cookie deactivation
Share Pref Youtube.com


Create an ID unique to each computer to enable Google to analyse YouTube video viewings.


  Cookie deactivation 
Analytical test_cookie Doubleclik.net (Google Inc. advertising platform) Test whether the browser accepts cookies.   Cookie deactivation 
Advertising id Doubleclik.net (Google Inc. advertising platform)


Identify which adverts were published on a terminal.

Used to monitor the effectiveness of adverts and make them more relevant for the user.


  Cookie deactivation
Analytical NID Google.com


Record the user’s information and preferences when they visit pages integrating content from Google Maps.


  Cookie deactivation
Share Pid Twitter.com


Save an anonymous unique ID for each site visitor.


  Cookie deactivation 
Share Guest_id Twitter.com


Identify the visitor by creating a unique code if the latter has no Twitter account or has never visited twitter.com.

Twitter can monitor the browse habits (on sites with a Twitter button) of internet users without a Twitter account or for those who have never visited the Twitter website. If the internet user uses the same browser to set up a Twitter account, information collected previously through this cookie can be linked to the Twitter account set up.


  Cookie deactivation 
Analytical _qca Tumblr.com


On behalf of the Quantcast.com site, collect information (terminal IP address, pixel code, http address used, access hours, searches made on the website), analyse this data for different sites and combine with other information of a non-private nature to produce study reports. The purpose of these reports is to help advertisers to provide content adapted to internet user expectations.


  Cookie deactivation 
Analytical _anon-id



This cookie anonymously stores behavioural data such as visits/actions.


  Cookie deactivation
Analytical _ga Tumblr.com


Create a unique identifier for each browser to track the interactions of the user with the site.


  Cookie deactivation 
Advertising B Yahoo.com


Yahoo! may use collected information to serve a user ads based on websurfing activity and interests.


  Cookie deactivation
Analytical UIDR Scorecardreseach.com


Collect information such as the date a user visits the website, pages visited, the title of web pages visited, IP address. This information is used by ScorecardResearch, a service provided by Full Circle Studies, Inc., that is part of the comScore, Inc. market research community. ScorecardResearch uses these analyses to help companies to better understand the expectations of their customers.


  Cookie deactivation
Share _atpro_freestyleinteractive alstom.com

Save user preferences for AddThis to the website. Optional Cookie deactivation
Share _at.hist.0521 alstom.com

Save user preferences for AddThis to the website. Optional Cookie deactivation 

3. Configuring and deleting cookies

In compliance with regulations, you have the right to oppose and to access personal data. 

You can choose to block or deactivate cookies at any time. Internet browser default parameters are usually set to accept cookies. You can change this setting by changing your browser's parameters. You can accept or refuse cookies on a case-by-case basis, depending on their issuing site, or you can systematically refuse all of them.

Remember that changing settings may modify your access conditions to our services which require the use of cookies. Therefore, if you do decide to deactivate certain cookies (e.g. functionality cookies), you may not be able to access some parts of our websites. 

To manage cookies as you wish, please change your browser settings bearing in mind the role of the cookies as specified above.

Each browser has a different configuration. This configuration is described in your browser's help menu. Open this menu to find out how to set your cookie preferences.

You can deactivate cookies following the instructions below:

Internet Explorer

In Internet Explorer, click on the Tools button and then select Internet options.
In the General tab, click on Settings under Browsing history, click on Parameters.
Click on the "View files" button.
Click on the header of the Name column to sort all files in alphabetical order and then browse the list until you see files starting with the "Cookie" prefix. (All cookies have this prefix and usually contain the name of the website that created the cookie).
Select the cookie or cookies that you would like to remove.
Close the window which contains the list of files and then double-click OK to go back to Internet Explorer.


Go to the "Tools" tab of the browser and select the “Options” menu. 
In the display window, select "Privacy" and click on "Remove individual cookies".
Identify the files listed above, select them and remove them.


In your browser, select the Edit > Preferences menu.
Click on Security.
Click on View cookies.
Select the cookies listed above and click on Remove or Remove all.
When you have deleted the cookies, click on Finish.

Google Chrome

Click on the Tools menu icon.
Select Options.
Click on the Advanced options tab and access the "Privacy" section.
Click on the View cookies button.
Identify the files listed above, select them and delete them.
Click on "Close" to go back to your browser.

Some browsers offer the “Do Not Track” option that you can select to prevent cookies being stored on your terminal.

If you have any further questions, please contact ALSTOM Communication Department, 48 rue Albert Dhalenne, 93400 Saint-Ouen, France.