Open invitation to tender, deadline 07/02/2020, for the design and installation (including operation and maintenance) of temporary safety engineering systems for extension of the Blue Line to Nacka Söderort. This consists of radio communication, data networks, systems for monitoring of personnel (FUT procurement n. 28771). Duration of the contract until 31/12/2028. Contact Stockholms läns landsting, attn Matilda Mosell, Stockholms, email matilda.mosell@sll.se. For tender information please click here. Ref.n. FUT 2019-0332. 48/19.