What is the generic maximum speed within a built-up area on a road with three lanes per direction?

The generic speed limits on urban roads, based on the characteristics of the carriageway, are as follows: a) 20 km/h on roads with a single shared platform for carriageway and pavement. b) 30 km/h on roads with a single lane per direction of travel. c) 50 km/h on roads with two or more lanes per direction of travel. (40 km/h for vehicles transporting dangerous goods) For these purposes, lanes reserved for the circulation of certain users or for the exclusive use of public transport shall not be counted. These limits may be reduced or increased by the Municipal Authority following specific signage. In through roads (travesías), a limit of 50 km/h is set for all types of vehicles, except for vehicles transporting dangerous goods, for which it shall be 40 km/h. This limit may be reduced by agreement between the Municipal Authority and the road authority, following specific signage.