Modular street barrier system

A modular vehicle barrier system, comprising a plurality of L-shaped barrier modules which lie on respective parallel vertical planes and connecting means between two of said barrier modules adjacent to each other, each barrier module comprising a first horizontal element, on a first end of which a second upright element rises, in the upper portion of the latter being defined holes, and anchoring means intended for their anchoring to the ground located in proximity of said first longitudinal end, configured to obstruct the sliding movement of said barrier module on the ground, characterized in that it comprises at least one flexible thread-like element which joins two or more modules, said flexible thread-like element being slidingly connected to the upright elements of at least one part of the intermediate barrier modules and being integrally connected by way of blocking and tensioning devices to the holes of the upright elements of the modules located at the ends of the barrier system, and in that said first horizontal element and second upright element are made from box-like metal profiles featuring a C-shape or quadrangular cross section.