The article proposes a method for determining the total impact energy and the deformation of the bus body in case of rollover. This method takes into account the deviation of the coordinates of the center of gravity. Developed adjusted formula for calculating the height of the fall of the center of gravity and total impact energy. Conducted experimental calculations based on which made suggestions for optimization of systems passive safety.

Keywords: bus, passive safety, center of gravity, total impact energy, body deformation, critical load

The article presents the results of research aimed at selection of the most suitable material, shape, size of a bearing component of the device that enhances body strength of the bus. The comparative analysis of measurement results. Based on the analysis made suggestions to improve the strength characteristics of the device.

Keywords: the bus, safety of bus construction, strength, deformation, body pillar