Connecting device for a post of a roadway equipment support structure, and a roadway equipment support structure that includes said connecting device

A support structure for road equipment (3), comprising a pole (2), formed by a hollow cylindrical, elliptical, prismatic, polygonal, truncated pyramid-shaped, or truncated cone-shaped mast, comprising a lower end (2.1) adapted for being fixed to a terrain (6) by means of a foundation (4), and a connecting device (1) arranged between the lower end (2.1) of the pole (2) and the foundation (4), wherein the connecting device (1) comprises a hollow drum (1.1), having a circular, elliptical, or polygonal cross-section, adapted for being arranged with its longitudinal axis parallel to a longitudinal axis of the pole (2), the hollow drum (1.1) comprising a first end (1.11), a second end (1.12), and a central part (1.13) arranged between said ends (1.11, 1.12), where the first end (1.11) is adapted for being fixed to the foundation (4) by means of an anchoring piece (1.2) which is connected to said first end (1.11) of the hollow drum (1.1), and the second end (1.12) is adapted for being fixed onto the outside of the lower end (2.1) of the pole (2), characterized in that, in use, the second end (1.12) of the hollow drum (1.1) which is fixed to the lower end (2.1) of the pole (2) is arranged below the anchoring piece (1.2) for anchoring to the foundation (4), and the hollow drum (1.1) and the lower end (2.1) of the pole (2) are arranged inside a hollow space (4.1) formed in the foundation (4) {original claim 9}, and the central part (1.13) comprises a wall portion (7) configured for deforming in a controlled manner under compression when an impact force (F) acts on the pole (2), such that the lower end (2.1) of the pole (2) is adapted for being displaced upwards or being raised and twisted in the direction of the impact force (F), the lower end (2.1) of the pole (2) remaining fixed to the second end (1.12) of the hollow drum (1.1).