The foundation of Luxembourg City's train station was laid in 1858, although it was a far sight from the station we know and use today.
Initially, the station resembled more of a woodshed. Only half a century later did the station become extended and begin to look more like it does now. At this point, the station was constructed out of steel and concrete, including its four platforms that remain today.
Not long after, in 1936, the station already required modernisation. The platforms were covered and connected with a tunnel, a phenomenon considered a small revolution at the time. This ensured that theoretically, 800 trains could pass through the station each day. At the time, many did not believe this would occur.
160 years later, the amount of trains going through the station has surpassed 800 a day. The station now counts more than 1,000 trains per day, but requires additional construction to cope with the enormous number of passengers. Expecting the number of trains coming into and leaving the station to surpass 1,500 by 2030, the CFL is building a fifth platform.
The current issue with the four platforms is that a train staying at the platform for too long can cause delays on other services, in turn potentially affecting international trains. Without a fifth platform, it is impossible to get passengers in and out of trains without causing a small backlog of delays.
The construction site for a fifth platform will include a complete overhaul of the existing station. New underground tunnels will be built and the overhead bridge connecting platforms will also be completely renovated and made more accessible.
In order to coordinate these new changes, the current four platforms will have to be redistributed.