"strade regionali"), abbreviated SR, is a type of Italian road maintained by the regions they traverse.
[1] The concept was then extended to a national level by legislative decree nº 285 of 30 April 1992 (New Italian Traffic Law) which defines it as:[2] Regional road: when it connects the provincial capitals of the same region to each other or with the regional capital or connects the provincial capitals or municipalities with the state network if this is particularly relevant for industrial, commercial, agricultural, tourist and climate.The first roads (excluding Aosta Valley) classified as SR (acronym for strada regionale; "regional road") were created following legislative decree no.
In particular, articles 99 and 101 provided for the transfer of ownership and responsibilities relating to state highways not included in the national road network from the State to the regions, which then regulated the matter autonomously.
For organizational reasons, many regions have entrusted the former state highways to the provinces, while maintaining the acronym SR.
In addition to the roads identified by the acronym SR, there are roads managed by the region but identified by the acronym SP (for example, many SPs in the province of Belluno are managed by the Veneto Strade company with a 30% stake in the region of the same name).