01366026

Component

The objective of the study presented in this paper was to measure and explore passenger vibration during vehicle groove wander – a phenomenon whereby passengers experience uncomfortable lateral vibrations when driving vehicles with certain tire tread patterns over longitudinally grooved (or tined) Portland cement concrete (PCC) pavement. Field testing was performed over a 4.8 km stretch of Interstate highway using a vehicle known to experience vehicle groove wander. Lateral accelerations of the passenger’s head were measured during stretches of vehicle wander and non-wander. The results demonstrate that vehicle groove wander is measurable as a 1-3 Hz, 0.75-1.5 m/s2 amplitude phenomenon. The 1-3 Hz range is the most sensitive lateral vibration frequency range to humans and coincides with the frequency range that is amplified by the human torso during seated posture. Vehicle groove wander was found to be a stochastic phenomenon, and its existence was not strictly repeatable when examining local areas (e.g., single meters of road). Human input was found to be critical in assessing the presence of vehicle groove wander.

This paper was sponsored by TRB committee AFD90 Surface Properties - Vehicle Interaction

01362476

12-1218

English

20p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; Photos; References; Tables

Field tests; Passenger comfort; Pavement grooving; Portland cement concrete; Stochastic processes; Vehicle occupants; Vibration

Highways; Passenger Transportation; Pavements; I32: Concrete; I70: Traffic and Transport

Transportation Research Board Annual Meeting 2012 Paper #12-1218

TRIS, TRB

Feb 8 2012 5:00PM