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(Automatic translation)

Measuring the quality of movement obtained on a pavement and comparison with user opinion

Hans PREM
Director and Chief Advisor, Mechanical System Dynamics (Australia)

Ziming TU
Consulting Engineer, Australian DIGISYSTEM Group (Australia)

Geoff AYTON
Head, Rigid Pavements, Roads and Traffic Authority
New South Wales (Australia)

ABSTRACT
The authors have developed sophisticated techniques to assess the quality of movement obtained on a pavement closely simulating actual driving dynamics of the vehicle and the responses of human beings to the vibration that occurs in the body. They have addressed fundamental problems related to the current measures of the quality of circulation by numerical models in the initial phase simulate a passenger vehicle and in future will simulate four kinds of generic road vehicles (passenger cars, heavy commercial vehicles or trucks , recreational and sport utility vehicles or SUVs and motorcycles). All this has led to a more solid and precise about the ability of a pavement to drive over it estimates.

They have conducted trials initial field testing and test sections on the proposed quality of circulation for a car model. In order to assess the effectiveness of the model as a tool to predict the quality of movement, they have been compared global responses to the movement that has served as a model with the actual vibration measured during driving (objective measurements) and the scores they have given drivers (subjective measurements), all taken on the same pavement sections. In the case of objective measures of quality of movement, mounted, adapted and tested laptops vibration measurement consisting of accelerometers, incident markers and a data recorder.

In the latest versions of the equipment, which are also described in this paper, GPS monitoring was incorporated for accurate time records the location and speed. The team, which was created expressly for this project, is small in size, completely autonomous and is adapted for use in both small and large vehicles (motorcycles, cars, SUVs and trucks). The initial study determined that there was consistency between the model responses, vibration measurements and subjective ratings. making a new larger study is expected.

KEYWORDS
evenness, Pavement, Traffic, quality circulation, circulation model, road user, User opinion, Vibration, Bodywork.

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