Method and installation for constructing an expressway

摘要

A method and installation for constructing highways. The object is to extend operational capabilities of a mobile installation for constructing a highway in a space-limited environment without reducing the traffic intensity and construct the highway above an existing main traffic motorway. The method includes constructing the highway in the form of an elevated road passing at least by the part thereof over the existing motorway and also includes a portal type mobile self-propelled installation. The moveable legs of the installation are disposed within the land allocation of the existing motorway.