Daily life

What is the purpose of “dry runs”?

Before putting our metro, tramways or RER into service, we first conduct “dry runs” – which is to say we run the trains without passengers, to ensure that everything is working correctly.

Verification and prevention

No passengers are on board: the purpose of the dry run is to test all systems under real-life conditions and to make any final adjustments, and, for the staff, to verify that all procedures associated with this new means of transport are thoroughly understood and applied.

For tramways, which operate on public roadways, it is also an occasion for the general public to get used to the trams being part of cityscape, and thus to a new way of sharing the road.

Dry run for tramway T3b!

Before starting up service on Saturday, 24 November 2018, trial runs were conducted on the extended section of tramway T3b for nearly a month between Porte de la Chapelle and Porte d’Asnières, at intervals identical to those during regular service.

The dry run effectively serves to practice operating procedures, not only during normal conditions but also under those that are more challenging, and to verify one last time the travel time as well as the proper functioning of all systems (passenger information, electric power supply, signalling, etc.).

Marche à blanc T3b
A T3b tram on its "dry run" between Porte de la Chapelle and Porte d'Asnières
Behind-the-scenes Operating System Prévention