Assistance system with control, the exploitation and maintenance

The Assistance system with Control, the Exploitation and Maintenance , in summary SACEM , is a device of indication in cabin equipping the oars with the RER has Paris IEN; it functions mainly on the central section of the line, between the halts of Nanterre-Prefecture and Vincennes.

SACEM comprises a certain number of transmitters of information in the form of granted loops placed under the ways, for each elementary division or canton . A receiver, placed in cabin, interprets and returns information towards the desk. The interface presented to the mechanic comprises a device posting a point of instruction speed (or an indication known as paved orange for walk at sight (30 km/h), paved red for the absolute stop), as well as a sound signalling hooter ( vigilance ) when this point of instruction drops. Non-observance by the mechanic of the left-luggage lockers in a short time (a few seconds) involves an emergency braking and the stopping of the oar ( planting ).

Lastly, the activation of system SACEM involves the automatic cancellation of the system of luminous indication traditional, whose indications are replaced by simple a Croix of saint André (X).

Indeed, this system bases on mobile cantons, making it possible to pass from 105 to 90 seconds between each oar in station, equivalent to the 2 minutes passage 30 to 2 minutes in tunnel.

External bonds

technical Article on SACEM on Metro-Pole.net
Presentation of SACEM on symbioz.net

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