Metro steel bridge RATP Paris

Several Lines of the Paris Metro RATP operate over steel bridges dating from the early 1900’s. A rehabilitation project was the perfect time to redesign the trackwork of the Pont du Nord and offer a significant reduction in vibrations and emitted structural noise. The Pont du Nord is situated on Metro Line 2 close to La Chapelle station.

The steel structure is almost 100 years old. The rails are mounted on wooden ties, which are bolted directly to the steel bridge. The special designed new trackwork consisted of an elastic prestressed layer under the sleeper reducing the noise by 6 dB(A).
 
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