Abstract: The present invention relates to improvements in the construction of reactor-driven articulated trains with elevated track, consisting of an indefinite succession of modular rings of circular, prismatic, eliptical or similar section, of suitable dimensions, equipped with flanges folded inwards in such a way that the said rings are longitudinally joined, placing between them an elastic joint of the same profile as the rings, in one or more pieces, making possible a perfect articulation of the rings on curves of any radius, in this way forming a clear tubular unit that is extremely flexible and deformable, which can be hauled by a reactor motor element, resting on pneumatic sliding wheels; in the interior of the tubular unit a floor is made and seats for passengers are suitably arranged and which are provided with means of tilting that make it possible to absorb the centrifugal forces developed in relation to the speed and the radius of the curves of the elevated track rails, with elimination of cant in the sai