Expression Of Interest Aimed At Identifying Economic Operators To Invite To A Negotiated Procedure Without Notice, Pursuant To Art. 50, Paragraph 1, Lett. C) Of The Legislative Decree. 36/2023, To Be Carried Out On The Sintel Platform, For The Implementation Of The "Cycle Interconnection Of The Historical Center And Creation Of School Areas" Works, Following The Financing Of The Regional Notice Called "Green Streets. Integrated Interventions In Urban Areas For The Reduction Of Emissions Resulting From Traffic And Adaptation To Climate Change