The contract covers the design, supply, installation, testing and commissioning of GSM-R and ETCS Level 2 on the section of Rodalies Line R1 between L'Hospitalet de Llobregat and Mataró. This section has 15 stations and includes the busy tunnel between Barcelona Sants and Clot-Aragó.

Consortium leader Alstom will supply its Atlas 200 ETCS Level 2 solution, while Bombardier will provide Ebi Lock 950 electronic interlockings for the project. Alstom's share of the contract is worth €38.5m and the deal is worth €34.2m to Bombardier.

As part of the contract the consortium will maintain the equipment for 20 years.