37 Construction, works supervision, servicing, repair, renovation, maintenance and installation of railway infrastructures, railway vehicles for transporting passengers or merchandise, underground trains, trams, buses, electric vehicles, autonomous vehicles; information with respect to the construction and repair of railway or land vehicles, particularly buses, motor buses, autonomous electric vehicles and railway vehicles for transporting passengers or merchandise, rolling stock for railways, including locomotives, railcars and self-propelled vehicles, high speed and very high speed railway vehicles, railway vehicles serving towns, suburbs and regions and other passenger or merchandise transport vehicle carriages, automatic or non-automatic, namely, railway vehicles on iron wheels or guided vehicles on wheels equipped with a tire or other types of ground liaison, railway couplings, railway infrastructure equipment, coatings, tracks and component parts thereof, storage tanks for the aforesaid land vehicles, railway couplings, motors and engines and parts thereof for the aforesaid land vehicles, shock absorbers, pneumatic shock absorbers, transmission belts and related gearings, drive shafts, air pumps (for vehicles), propulsion mechanisms, brakes, bogies, axles (of vehicles), electric motors for the aforesaid land vehicles, traction systems for land vehicles particularly railways; construction, works supervision, servicing, repair, renovation, maintenance and installation of electric and electronic apparatus for the management and control of railway traffic, navigation, guidance, piloting, control, measuring, signaling, detecting, inspection, life-saving systems and/or apparatus, railway and road signaling systems and installations, railway and road traffic safety apparatus; installation and continuous preventive and predictive maintenance of land transport systems and infrastructures, particularly railway or road, of passengers or merchandise, particularly for analyzing and diagnozing the condition of railway infrastructure equipment, land vehicles, particularly railway vehicles and their parts, particularly the body, wheels, brake pads, pantograph friction strips, doors, antennas and fixings, said systems and infrastructures being composed of control and diagnostic apparatus mounted on a framework or on a gantry or on arms or on vertical panels or on any other system enabling the passage of railway vehicles and/or comprising control and diagnostic apparatus laid on the railway track, said control and diagnostic apparatus being particularly optical, data visualization, measurement, monitoring, control, particularly lasers and surveillance cameras, data transmission equipment; all the aforesaid services being for the purpose of maintenance in the field of passenger or merchandise transport, particularly in the field of railway (maintenance of vehicles, infrastructures and signaling systems and installations) and road transport (particularly buses, motor buses, electric vehicles and autonomous vehicles for transporting passengers or merchandise)