00780223

Component

https://doi.org/10.3141/1684-02

http://scholar.google.com...ICHI&publication_year=1999

The use of load-equivalency factors (LEFs) in pavement design is well established and represents a major factor in various design procedures. The use of the most commonly known AASHTO LEFs in the Israeli design method, however, leads to an underdesign of approximately 10% in pavement thickness or to a reduction of 70% in design life. New LEF values were developed to be compatible with this design method. This was achieved, first, by attaining straightforward regression equations that are fully compatible with the original total thickness equations given in the Israeli design method (through the MOD software). The built-in LEF values then were calculated by using these regression equations. A comparison was made with LEF values obtained by other established values, and the effect of these values on several overloading issues was evaluated. The conclusion is that the LEFs obtained are the most critical values leading to a substantial reduction in service life or to a substantial increase in the required thickness from overloading.

This paper appears in Transportation Research Record No. 1684, Issues in the Design of New and Rehabilitated Pavements.

English

p. 8-16

1999

Transportation Research Record

0309071097

Figures (7) ; References (9) ; Tables (4)

California bearing ratio; Design methods; Equations; Pavement design; Regression analysis; Service life; Thickness; Traffic equivalence factor

Overloads

Israel

Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Dec 9 1999 12:00AM

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• CHARACTERIZING SEASONAL VARIATIONS IN FLEXIBLE PAVEMENT MATERIAL PROPERTIES
• CONSIDERATIONS FOR HIGH-PERFORMANCE CONCRETE PAVING: RECOMMENDATIONS FROM 20 YEARS OF FIELD EXPERIENCE IN TEXAS
• CONTROLLING EARLY-AGE CRACKING IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT: OBSERVATIONS FROM 12 YEARS OF MONITORING EXPERIMENTAL TEST SECTIONS IN HOUSTON, TEXAS
• COST-EFFECTIVE REHABILITATION OF PORTLAND CEMENT CONCRETE PAVEMENT IN NEVADA
• DEVELOPMENT OF PERFORMANCE MODELS BASED ON DEPARTMENT OF TRANSPORTATION PAVEMENT MANAGEMENT SYSTEM DATA
• EFFECT OF STATIC AND FATIGUE CRACKING ON CONCRETE STRAIN MEASUREMENTS
• EVALUATION OF RIGID PAVEMENT JOINT SEAL MOVEMENT
• EXPERIMENTAL COLD IN-PLACE RECYCLING WITH HYDRATED LIME
• EXPERIMENTAL VERIFICATION OF RIGID PAVEMENT JOINT LOAD TRANSFER MODELING WITH EVERFE
• FATIGUE AND STATIC TESTING OF CONCRETE SLABS
• FIELD PERFORMANCE OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENT IN ILLINOIS
• FULL-DEPTH RECLAMATION PROCESS
• HOT-MIX ASPHALT OVERLAY DESIGN CONCEPTS FOR RUBBLIZED PORTLAND CEMENT CONCRETE PAVEMENTS
• LONGEVITY OF DIAMOND-GROUND CONCRETE PAVEMENTS
• MECHANISTIC REAPPRAISAL OF THE CURRENT DESIGN METHODOLOGY FOR RIGID AIRFIELD PAVEMENTS
• OVERVIEW OF HOT IN-PLACE RECYCLING OF BITUMINOUS PAVEMENTS
• REHABILITATION PERFORMANCE PREDICTION MODELS FOR CONCRETE PAVEMENTS
• RELATION OF FIELD CRACKING TO LAYER STIFFNESS OF COLD IN SITU RECYCLED MATERIALS
• RESISTANCE OF STEEP CONCRETE BLOCK PAVEMENTS TO HIGH-VELOCITY WATER FLOW
• RUBBLIZATION OF CONCRETE PAVEMENTS
• STRUCTURAL ADEQUACY OF RUBBLIZED PORTLAND CEMENT CONCRETE PAVEMENT
• STUDY OF A METHOD FOR ANALYZING THE MECHANICAL BEHAVIOR OF COMPOSITE PAVEMENT
• TEN-YEAR PERFORMANCE REVIEW OF IN SITU HOT-MIX RECYCLING IN ONTARIO
• WESTERGAARD CURLING SOLUTION RECONSIDERED