Abstract:

The Whole Body Vibration (WBV) levels, which are exposed at the Highway - Railroad Level Crossing (RLC) passes with a passenger car type vehicle and adversely affect human health, were investigated in the study. First of all, vibration measurements were made at different speeds on some road profiles with known geometries, and a dynamic model that could give the vehicle's responses in the digital environment was calibrated with the help of these data. Then, with the help of vibration data exposed in RLC transitions at Low (L), Medium (M) and High (H) severity levels at various ride speeds, the sections between and outside the rails are compared to the road profiles defined in the ISO 8608 standard. Using the vehicle dynamic model describing the WBV, vibration data that the human body is exposed to were produced in single-track and double-track RLC at L, M and H severity levels. In the simulation, the effects of the ride speed were also evaluated by changing the vehicle speeds in the range of 10 to 50 km/h by ten units. Vibration dose value (VDV), which is the vibration parameter defined in the ISO 2631 standard, the levels of general nuisance caused by vibration on human health, the equivalent static pressure stress (Se) parameter and the level of influence of the supporting skeleton system (lumbar spine) were investigated. The number of transitions that may cause the formation of these negativities in single and double railroad crossings with three different distress severities have been determined.

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