The contracts include an €8.2m agreement to renovate and maintain CTC at the El Berrón, Santander and Bilbao control centres on the metre gauge network in northern Spain, and a €7.7m contract to renovate and maintain CTC on the Iberian gauge network in León and Oviedo.

As well as implementing a more modern, reliable and secure traffic management system, the three control centres on the metre gauge network will be connected so that either one can take over the management of any of the others. The two control centres on the Iberian gauge network will also be interoperable.

The projects includes a four-month design period, a 20-month renovation period and 20 years maintenance.

CAF will be responsible for replacing the current CTC system and providing system training.

Earlier this month, Adif awarded a joint venture of Siemens and Indra a contract to develop the new Sitra+ traffic control and management system, which will cover operations on conventional, narrow-gauge and high-speed lines.