Since 1990 several research projects developing any pay-adjustment (PA) procedure for implementing performance related specification (PRS) in hot-mix Asphalt (HMA) pavement construction have been issued. Previous studies proved that an approach based on life-cycle cost analysis and Monte Carlo simulation was an effective way to develop rational pay-adjustment procedures. However, the PRS systems developed so far had some significant weaknesses in the modelling of the variability of materials and construction (M&C) characteristics with corresponding PA. Furthermore they are mainly based on an empirical approach rather than on a mechanistic one. A new approach to model M&C variability in PRS systems, based on beta distribution, is introduced and a new stochastic method for pay-adjustment evaluation is developed. These criteria were embedded in a mechanistic system framework based on life-cycle cost analysis and Monte Carlo simulation. The model has been recently applied to a real case study and results are reported and analysed in this paperwork.

Nicolosi, V., D'Apuzzo, M. (2010). A for new methodology stochastic modelling of pay factors in hot-mix asphalt pavements. ROAD MATERIALS AND PAVEMENT DESIGN, 11(S1), 559-585.

A for new methodology stochastic modelling of pay factors in hot-mix asphalt pavements

NICOLOSI, VITTORIO;
2010-01-01

Abstract

Since 1990 several research projects developing any pay-adjustment (PA) procedure for implementing performance related specification (PRS) in hot-mix Asphalt (HMA) pavement construction have been issued. Previous studies proved that an approach based on life-cycle cost analysis and Monte Carlo simulation was an effective way to develop rational pay-adjustment procedures. However, the PRS systems developed so far had some significant weaknesses in the modelling of the variability of materials and construction (M&C) characteristics with corresponding PA. Furthermore they are mainly based on an empirical approach rather than on a mechanistic one. A new approach to model M&C variability in PRS systems, based on beta distribution, is introduced and a new stochastic method for pay-adjustment evaluation is developed. These criteria were embedded in a mechanistic system framework based on life-cycle cost analysis and Monte Carlo simulation. The model has been recently applied to a real case study and results are reported and analysed in this paperwork.
2010
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ICAR/04 - STRADE, FERROVIE E AEROPORTI
English
Performance specification; pay factor; asphalt pavements; life-cycle cost; beta distribution
Nicolosi, V., D'Apuzzo, M. (2010). A for new methodology stochastic modelling of pay factors in hot-mix asphalt pavements. ROAD MATERIALS AND PAVEMENT DESIGN, 11(S1), 559-585.
Nicolosi, V; D'Apuzzo, M
Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/12594
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