EVALUATION OF RUTTING IN NOVA SCOTIA'S SPECIAL "B" ASPHALT CONCRETE OVERLAYS: JOINT C-SHRP/NOVA SCOTIA BAYESIAN APPLICATION
The increase of truck traffic on Nova Scotia's 100 series highways has resulted in an increase of wheel path rutting. To remedy this problem, in 1989 the Nova Scotia Department of Transportation and Communications (NSDOT&C) introduced a high friction Type "B" asphalt concrete (AC) mix, more commonly referred to as Special "B". In this paper an empirical model is developed to evaluate the performance of Special "B" as a rut resistant AC mix. The model is developed using the Bayesian regression software and methods developed by the Canadian Strategic Highway Research Program (C-SHRP). For this project a team consisting of members of NSDOT&C, the Technical University of Nova Scotia (TUNS) and consultant from private industry was formed to transfer the technology of the Bayesian C-SHRP project in order to develop a rutting model for Special "B". The field data was gathered from a data base of C-SHRP test sections in Nova Scotia. Five expert pavement engineers from both NSDOT&C and private industry were solicited to provide the subjective data. The "XLBAYES" software program, developed for the Bayesian C-SHRP project was utilized for all analyses. A linear and linear-log functional form were investigated for this project. Each expert predictions were analysed individually for each functional form. Subsequently, the encoded judgements of the individual experts were combined into a "group prior" and a single posterior regression model was developed for each of the functional forms implemented in this modelling project. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/1551870304
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Corporate Authors:
Canadian Strategic Highway Research Program
2323 St Laurent Boulevard
Ottawa, Ontario K1G 4J8, Canada -
Authors:
- RAMIA, A P
- ALI, N
- SPEIRAN, K
- Publication Date: 1995-10
Language
- English
Subject/Index Terms
- TRT Terms: Flexible pavements; Mathematical models; Rutting
- Identifier Terms: Strategic Highway Research Program
- ITRD Terms: 2944: Flexible pavement; 6473: Mathematical model; 3081: Rutting (wheel); 9122: SHRP
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 00726432
- Record Type: Publication
- Source Agency: Transportation Association of Canada (TAC)
- ISBN: 1-55187-030-4
- Files: ITRD
- Created Date: Oct 28 1996 12:00AM