Roads

The Infrastructure Area focused on the development of a unique road network of the CMM: any maintenance, programme and management assessment could not be disregarded by a single and formalised basis relating to the road network within the competence of the body. The growing dynamism of the metropolitan city territory, with particular attention to the infrastructures of the transport network, requires an effective and efficient strategy, as well as with low economic impact, to provide the body and the citizen with accurate and up-to-date information. Therefore, it was necessary to meet standard data quality criteria with particular attention to currency, which defines the measure of the degree of updating of the information. Operationally, the elaboration of the information layer relating to the metropolitan road network has been divided into three phases: • identification of sources; • implementation of the updated and approved information base at the time of release (t=0); • process of constant updating of the information base (t > 0). Implementation of the information base relating to the road network The new map base is the synthesis of four sources and incorporates the genealogy of each element, be it geometric or properly informative. Every original item has been specially renamed by adding to it a prefix such as to unequivocally identify its provenance: • dbt_ <original items name> DB REGIONAL topographic • stn_ <original items name> STRADENET • osm_<original items name> OSM • cmm_<original items name> INTERNAL CARTOGRAFIA of Metropolitan City of Milan