Abstract: The invention relates to a noise reduction device (1) for arrangement on a traffic route, comprising at least one wall element (8) having a wall element longitudinal extension (28a), the wall element (8) being disposed on at least one base element (7) having a base element longitudinal extension (12) in the direction of the wall element longitudinal extension (28a), and the base element (7) has a first front face (14) and a second front face (15), and the two front faces (14, 15) extend opposite one another along the base element longitudinal extension (12). The first front face (14) of the base element (7) is provided with a curvature (16) and the second front face (15) of the base element (7) is provided with a second curvature (17) and the two curvatures (16, 17) extend in the direction perpendicular to the base element longitudinal extension (12).

Abstract: The invention relates to a noise reduction device (1) for installation on a traffic route, comprising at least one base element (7) and at least one wall element (8), the base element (7) having a top face (9) and a bottom face (15), and the wall element (8) is disposed on the top face (9) of the base element (7). The bottom face (15) of the base element (7) is inclined at an angle (16) relative to the horizontal.

Abstract: A method of conducting crash tests uses a crash-test carriage. The crash-test carriage is accelerated in accordance with a real deceleration curve to thereby simulate deceleration forces associated with a real collision, the crash-test carriage having a carriage drive apparatus associated therewith. The method includes the step of exerting an accelerating force on the crash-test carriage in an acceleration direction, the accelerating force exceeding a respective force required for acceleration in accordance with the real deceleration curve. The method also includes a step of exerting a braking force on the crash-test carriage in a direction opposite the acceleration direction in order to achieve a desired acceleration curve. The braking force is applied on one of the crash-test carriage and the carriage drive apparatus, the braking force being so large so as to accelerate the crash-test carriage in accordance with the desired acceleration curve.