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A new predictive skid resistance model (PSRM) for pavement evolution due to texture polishing by traffic
Highlights Predictive skid resistance evolution model for pavement due to texture polishing. A wear law considering the aggregate type and the polishing operating conditions. A wear law considering the aggregate mineralogical composition.
Abstract We propose a new model to predict the evolution of pavement skid-resistance due to traffic polishing. The model accounts for polishing (by coupling a contact model with a wear law equation) and friction mechanisms. The contact model considers the tire operating conditions (including load, speed, and slip ratio), the tire geometry and mechanical behavior of the rubber tread, the pavement texture, and the physical properties of contaminants (i.e. the thickness and viscosity of fluids). The wear law considers the types of aggregates in the pavements (particularly their mineralogical composition) and the pressure distribution within the tire/pavement contact area. The friction component considers the mechanical behavior of a rubber measuring pad, the operating conditions during pad/pavement contact, and the pavement texture. The new predictive skid resistance evolution model is a numerical computational code that resolves pavement texture topographies at different polishing stages and the corresponding skid resistance levels. The model outcomes have been validated against repeated profilometer measurements on three mosaic pavements made of different types of aggregates subjected to the “Wehner-Schulz” procedure (that polishes and measures friction). The modeled predictions performed well against the captured changes in pavement textures during the polishing process, with slight differences in their absolute values potentially due to probable limitations of the wear law. The ability to predict the evolution of pavement skid resistance has transformative potential for tailored forecasting and proactive interventions to be undertaken across road networks.
A new predictive skid resistance model (PSRM) for pavement evolution due to texture polishing by traffic
Highlights Predictive skid resistance evolution model for pavement due to texture polishing. A wear law considering the aggregate type and the polishing operating conditions. A wear law considering the aggregate mineralogical composition.
Abstract We propose a new model to predict the evolution of pavement skid-resistance due to traffic polishing. The model accounts for polishing (by coupling a contact model with a wear law equation) and friction mechanisms. The contact model considers the tire operating conditions (including load, speed, and slip ratio), the tire geometry and mechanical behavior of the rubber tread, the pavement texture, and the physical properties of contaminants (i.e. the thickness and viscosity of fluids). The wear law considers the types of aggregates in the pavements (particularly their mineralogical composition) and the pressure distribution within the tire/pavement contact area. The friction component considers the mechanical behavior of a rubber measuring pad, the operating conditions during pad/pavement contact, and the pavement texture. The new predictive skid resistance evolution model is a numerical computational code that resolves pavement texture topographies at different polishing stages and the corresponding skid resistance levels. The model outcomes have been validated against repeated profilometer measurements on three mosaic pavements made of different types of aggregates subjected to the “Wehner-Schulz” procedure (that polishes and measures friction). The modeled predictions performed well against the captured changes in pavement textures during the polishing process, with slight differences in their absolute values potentially due to probable limitations of the wear law. The ability to predict the evolution of pavement skid resistance has transformative potential for tailored forecasting and proactive interventions to be undertaken across road networks.
A new predictive skid resistance model (PSRM) for pavement evolution due to texture polishing by traffic
Kane, Malal (author) / Lim, Michael (author) / Tan Do, Minh (author) / Edmondson, Vikki (author)
2022-06-02
Article (Journal)
Electronic Resource
English
Directional characteristics of traffic polishing effect on pavement skid resistance
Taylor & Francis Verlag | 2022
|Effects of Pavement Texture on Skid Resistance
NTIS | 1977
|Evolution of road-surface skid-resistance and texture due to polishing
British Library Online Contents | 2009
|Pavement surface texture as related to skid resistance
TIBKAT | 1967
|Pavement Surface Texture as Related to Skid Resistance
NTIS | 1967
|