Take part in the Global Transport Survey!
Knowing today's mobility to improve tomorrow's mobility.
Île-de-France Mobilités, with the support of the State, is conducting a major survey on the travel habits of Ile-de-France residents: the Global Transport Survey (EGT). This official survey focuses on the mobility of Ile-de-France residents for more than 50 years.
Why is this survey essential?
- To improve the quality of service in public transport
- To plan new metro, bus or tram lines
- To make it easier to get around by bike or on foot
- To identify road traffic difficulties to improve road infrastructure and facilitate the use of alternatives to the car
- To optimize the use of public money to meet the needs of Ile-de-France residents
Each answer counts and allows us to build a faithful image of mobility in Île-de-France. This in-depth knowledge of the daily mobility of Ile-de-France residents is essential to improve the transport offer in the Île-de-France region (roads, public transport, pedestrian and bicycle facilities).
Our survey is not only interested in trips made by public transport. To offer travel solutions to all Ile-de-France residents, it is essential to understand the diversity of situations. We are interested in car travel, walking and even days without travel.
How does it work?
A sample of housing is drawn at random by INSEE. The dwellings that make up this sample are representative of all dwellings in the Ile-de-France region.
If you are drawn to participate in the survey, a professional investigator from the company TEST SA mandated by Île-de-France Mobilités will come to your home or contact you by phone. This investigator will be in possession of a professional card justifying his status as an investigator.
Your contact data (names, addresses, telephone numbers) are provided by INSEE and are used only by TEST SA for the purpose of carrying out the survey. They will then be destroyed at the end of the survey. All the data collected during the interview is anonymised before being used.
The interview consists of answering questions relating to your situation and describing the movements made by all the members of your home the day before the interviewer's visit. Even if you didn't make it, your answer counts.
An official and secure investigation
- Investigation recognized as being of general interest (visa n° 2023X706TR)
- Data protected by statistical confidentiality and the General Data Protection Regulation (GDPR)
- Responses used for statistical purposes only
- No commercial use will be made of your data.
Trained and identifiable investigators
The investigators of the company TEST SA, mandated by Île-de-France Mobilités, are professional, trained and subject to strict rules of confidentiality.
The interviewer who will come to your home to carry out the survey will have a professional card and a copy of the letter presenting the survey.
You can find here the list of investigators who are currently working on this investigation.
The guarantee of respect for your personal data
You may at any time exercise your right to access and rectify data concerning you, as well as your post-mortem rights, by sending us an email at the following address: [email protected].
Your answers will be anonymized
Once the collection is complete, your answers are anonymized: your surname, first name, telephone number, postal address and email address will be deleted, the different places you have declared in your answers to the questionnaire will be made less precise (aggregation at a radius of 110 meters). This processing of your data takes place within a maximum period of 4 months after the collection of your responses. It is carried out before the first statistical processing is undertaken.
Statistical analysis of responses for 10 years
The survey records are used by Île-de-France Mobilités for the purposes of knowing travel flows, and published only in the form of aggregated results.
The pseudo-anonymised recordings, including in particular all the places declared during the survey (blurred to the nearest 110 metres), are made available to institutional partners, infrastructure managers, as well as to public research organisations, which use them in compliance with statistical confidentiality for the purposes of knowing travel flows.
In view of the favourable opinion of the National Council for Statistical Information and in application of Law No. 51-711 of 7 June 1951, as amended, on the obligation, coordination and secrecy of statistics, the Global Transport Survey (EGT), recognised as being of general interest, has received the visa number: 2023X706TR and the non-compulsory nature, valid for the years 2023 to 2027 (see the description sheet).
Pursuant to Law No. 51-711 of 7 June 1951, as amended, the answers to this questionnaire are protected by statistical confidentiality and are intended for Île-de-France Mobilités.
The General Data Protection Regulation 2016/679 of 27 April 2016 (GDPR) as well as Law No. 78-17 of 6 January 1978 relating to information technology, files and freedoms apply to this survey.
The research institute TEST SA, CEREMA and Université Gustave Eiffel, authorised by the Committee for the Confidentiality of Official Statistics, are the sole recipients of identification data (name and contact details) in accordance with the provisions of Article L. 212-4 of the French Heritage Code. They will be kept by the producer department for 5 years.
Respondents may exercise a right of access, rectification or limitation of processing for data concerning them during the retention period of identification data. These rights can be exercised by contacting the data protection officer of the TEST SA institute, whom you can contact at [email protected]. If you have any questions about the processing of your data, you can contact Île-de-France Mobilités' data protection officer at dpo@iledefrance-mobilités.fr.
If you consider it necessary, you can send a complaint to the CNIL.
Do you have any questions?
📞 Toll-free number: 0800 10 10 56 (toll-free, Monday to Friday, 9 a.m. – 5:30 p.m.)
📧 Contact: [email protected] or [email protected]






