4.1. Incidentally to a shared transportation infrastructure project and in order to promote the development of the spaces near the buildings or civil engineering structures, a public transit authority may, with the authorization of the Government and on the conditions the Government may determine,1° sell an immovable or part of an immovable that the transit authority no longer intends to use and that was acquired for the project; or
2° lay out an immovable or a civil engineering structure to support or accommodate a building or an underground structure that a third person could build, within the limits provided for by law.