00798888

Component

https://doi.org/10.3141/1699-21

http://scholar.google.com...Fang&publication_year=2000

To provide accurate climatic data for pavements under the Long-Term Pavement Performance (LTPP) Program, a climatic database was developed in 1992 and subsequently revised and expanded in 1998. In the development of this database, up to five nearby weather stations were selected for each test site. Pertinent weather data for the selected weather stations were obtained from the U.S. National Climatic Data Center and the Canadian Climatic Center. With a 1/R-squared weighting scheme, site-specific climatic data were derived from the nearby weather station data. The derived data were referred to as "virtual" weather data. To evaluate the effect of environmental factors on pavement performance and design, automated weather stations (AWS) were installed at LTPP Specific Pavement Study Projects 1, 2, and 8 to collect on-site weather data. Since the virtual weather data were developed for all LTPP test sites and will be used for future pavement performance studies, it is essential that the derived virtual data be accurate and representative of the actual on-site climatic conditions. The availability of the AWS weather data has provided an opportunity to evaluate whether virtual weather data can be used to represent on-site weather conditions. Daily temperature data and monthly temperature and precipitation data were used in this experiment. On the basis of the comparisons made between the virtual and on-site measured (AWS) data, it appears that climatic data derived from nearby weather stations using the 1/R-squared weighting scheme estimate the actual weather data reasonably well and thus can be used to represent on-site weather conditions in pavement research and design.

This paper appears in Transportation Research Record No. 1699, Pavement Management and Monitoring.

English

p. 151-159

2000

Transportation Research Record

0309066778

Figures (10) ; References (4) ; Tables (5)

Accuracy; Climate; Data collection; Databases; Environmental impacts; Pavement design; Pavement performance; Weather; Weather stations

Long-Term Pavement Performance Program

Design; Environment; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Sep 8 2000 12:00AM

• APPLYING ECONOMIC CONCEPTS FROM LIFE-CYCLE COST ANALYSIS TO PAVEMENT MANAGEMENT ANALYSIS
• ARTIFICIAL NEURAL NETWORK FOR ENHANCING SELECTION OF PAVEMENT MAINTENANCE STRATEGY
• DEVELOPING A QUANTITATIVE RATING SYSTEM FOR CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
• DEVELOPMENT OF PAVEMENT TYPE EVALUATION PROCEDURE FOR TEXAS DEPARTMENT OF TRANSPORTATION
• EARLY EVALUATION OF LONG-TERM PAVEMENT PERFORMANCE SPECIFIC PAVEMENT STUDIES-2, COLORADO
• EVALUATION OF ACCURACY OF SURFACE PROFILERS
• EVALUATION OF RELATIONSHIP BETWEEN PROFILOGRAPH AND PROFILE-BASED ROUGHNESS INDEXES
• FORECASTING OF PAVEMENT CRACK PERFORMANCE WITH ADAPTIVE FILTER MODEL
• INCORPORATING ROAD SAFETY INTO PAVEMENT MANAGEMENT
• INVESTIGATION OF RELATIONSHIP BETWEEN ROUGHNESS AND PAVEMENT SURFACE DISTRESS BASED ON WESTRACK PROJECT
• LABORATORY CALIBRATION AND IN SITU MEASUREMENTS OF MOISTURE BY USING TIME-DOMAIN REFLECTOMETRY PROBES
• MECHANISTIC ROUGHNESS MODEL BASED ON VEHICLE-PAVEMENT INTERACTION
• PLANNING AND IMPLEMENTATION OF A MANAGEMENT SYSTEM FOR UTILITY CUTS
• PROPOSED PAVEMENT PERFORMANCE MODELS FOR LOCAL GOVERNMENT AGENCIES IN MICHIGAN
• PUBLIC PERCEPTIONS OF WISCONSIN PAVEMENTS AND TRADE-OFFS IN PAVEMENT IMPROVEMENT
• ROAD USER COST MODELS FOR NETWORK-LEVEL PAVEMENT MANAGEMENT
• SIMULATION MODEL FOR CALCULATING PAVEMENT TEMPERATURES INCLUDING MAXIMUM TEMPERATURE
• SOLUTION OF PAVEMENT DETERIORATION EQUATIONS BY GENETIC ALGORITHMS
• STRUCTURED APPROACH TO MANAGING QUALITY OF PAVEMENT DISTRESS DATA: VIRGINIA DEPARTMENT OF TRANSPORTATION EXPERIENCE
• USING DURATION MODELS TO ANALYZE EXPERIMENTAL PAVEMENT FAILURE DATA
• USING PAVEMENT MANAGEMENT SYSTEM CONCEPTS TO DETERMINE THE COST AND IMPACT OF UTILITY TRENCHING ON AN URBAN ROAD NETWORK