Open invitation to tender, deadline 18/01/2021, for the maintenance of systems ITS, tunnel and toll systems on R3 (Madrid-Arganda), R5 (Madrid-Navalcarnero), M-50 (tratto North West section, km55,490-km85,340), AP-41 (Madrid-Toledo), TO-22 e A-40 (Northern Toledo Ring Road, km118,720-km141,070). For tender documents click here. Value of the contract is EUR2.33 million, excluding VAT. Duration of the contract 22 months. Contact SEITT Sociedad Estatal de Infraestructuras del Transporte Terrestre, Madrid, tel +34 915916629, fax +34 915916630, email contratacion@seitt.es. For further on the tender, please click here and here. Ref.n. 20201025-V. 02/21.