In just five months Alstom has completed the signalling upgrade works in the Recoletos Tunnel in Madrid. The project included modernising the signalling and protection systems, and installing new fixed communications systems.

While Alstom was delivering its part of the project, it also had to co-ordinate with other contractors on site working on the roads and catenary infrastructure.

Alstom performs signalling works in Recoletos Tunnel

© Alstom

As Railway-News reported in October, ADIF has invested 45 million euros in refurbishing the 7km tunnel. These upgrade works should improve the reliability of the line and provide a better service, particularly for Madrid’s suburban network. Furthermore, the works include improved safety measures. These would make evacuation easier, should this become necessary.
source= https://railway-news.com/madrid-recoletos-tunnel-upgrade/