Related to the trunk (especially referring to trees). Branch. A type of main road linking cities, ports, or airports. In Colombia they are roads that go in a north-south direction (and they are assigned odd numbering). It is clarified that the roads in Colombia Transversales go from East to West and are assigned even numbering. By definition, in Colombia a Troncal is a highway belonging to the primary road network that begins its journey at international borders and ends at the ports of the Caribbean Sea or at international borders (Resolution No. 339 of 26 February 1999 of the Ministry of Transport).
