###### Abstract
Based on simulations of an ATV without protection and an ATV equipped with a quad bar, the authors concluded that the driver could suffocate mechanically 32 and 17 times, respectively; hence, the quad bar reduced the risk by 57%. The authors deduced that, due to ATV overturn, a risk of grave and fatal injuries existed, and that the installation of a CPD should be considered to mitigate the possibility that the driver could get trapped or crushed, as a result of vehicle rollover. Moreover, the authors concluded that in the case that the ATV was equipped with a CPD, the driver could have saved his life in the event of vehicle overturn. Reference [15] developed a research project with the purpose of improving ATV safety. The original objective was testing ATVs alone, however, later on, the scope of the project was increased to include tests of side by side vehicles (SSVs). In that project, tests focused on side, forward, and backward vehicle rollover. There are not many reports about the development of rollover tests for vehicles of the type ATV-Quad. One relevant study was developed by [16]. Its main objective was to improve the safety of QBs by the critic assessment, research and the development of tests, in order to identify the engineering and design characteristics, required to improve the static stability, dynamic response, and rollover resistance, including protection devices for the operator. The planning of rollover resistance tests included 65 QB tests, SSV tests, as well as inspections of SSVs focused in four different areas, related to the rollover resistance features of a vehicle, such as the measurement of contact loads to the ground, inspections of occupants' retention in the SSV, dynamic rollover tests, and tests of structural loads on rollover protection systems (ROPS) installed in SSVs. This research work presents the design, manufacturing, and validation process for the design of the structure, electronics, and control of an ATV rollover test bench. In order to achieve this objective, several rollover test benches, described in the literature, have been analyzed. The new bench, which has been developed and reported in this manuscript, significantly improves the functionality of the bench for performing rollover tests on it. Moreover, the validation process has allowed one to prove its functionality and ability to perform a wide range of rollover tests with different models of QBs. The main contributions of the presented rollover are the versatility of possible rollover tests (frontal, rear and lateral rollover) that can be carried out, the possibility of varying the turning speed of the platform, the possibility of conducting non-destructive rollover tests, as well as the \"real-time\" acquisition of data (rollover angle, rollover instant) have been highlighted. In addition, through this test bench the pathologies of the dummy can be studied after impact due to rollover. The present paper is organized as follows: Section 2 describes the design process developed to manufacture a novel ATV rollover test bench, including the design of the mechanical structure, implementation of the instrumentation, electronics and control. The validation of the bench operation and the results of the tests have been addressed in Section 3, while the following section discusses the results. Conclusions are presented in Section 4.