KEOLIS opted a few years ago for a system of inflatable blankets to restrain a person in the event of a fall into a pit. This solution involves the installation of pneumatic mattresses positioned along the entire length of the pit. These mattresses, which roll up under air pressure, are generally installed 40 cm below slab level. A remote control box is used to control the safety zones, as the mattresses may not all be deployed at the same time.
Existing inflatable pit cover
Very quickly, this inflatable cover system appeared to the customer to be a very expensive solution to maintain. These railway pit covers are very prone to air leaks because they are so fragile. The slightest hole means that either the compressor has to be constantly running to maintain the air pressure in the mattress, or a technician has to be called in quickly to repair the leak.
The cost of annual maintenance is far too high, and the after-sales service is too long and recurrent, so this pit protection system has clearly become obsolete in every respect.
As the system is no longer used by operators, combating the risk of falls from the ground has once again become a priority for Kéolis.
After our intervention
For the same reasons, the company Alstom which was also equipped, will be gradually replacing and phasing out this air cover system with a solution that is more reliable, easier to install and much less costly to maintain.
KEOLIS entrusts us with the dismantling and replacement of its pneumatic railway pit covers.
We offered a turnkey solution to Lyon's public transport operator (TCL). A comprehensive service provided by our teams, including
- Dismantling and reinforcement of these covers on air cushions.
- Civil engineering work: cutting of pit edge rails and corbelling for storage our new 25T/m2 motorised pit cover
- Complete installation of our pit curtains with footbridges to fill the staircase space.
- Commissioning and training.
KEOLIS is now equipped with a system that is simple, effective, quick to install, reliable and maintenance-free.
The customer is convinced by the product, which finally meets 100% his real expectations.
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