01506455

Component

https://doi.org/10.3141/2457-10

Rolling resistance is one of the key factors that affect the fuel efficiency of the national pavement system. In addition to pavement texture and pavement roughness, the dissipation of mechanical work provided by the vehicle because of viscous deformation within the pavement structure has been recognized as a relevant factor contributing to the environmental footprint of pavement systems. This dissipation depends on material and structural parameters that can be optimized to increase the fuel efficiency of pavements. Identifying the key material and structural parameters that drive this dissipation is the focus of this paper. This identification is achieved by a combination of dimensional analysis and model-based simulations of the dissipation of a viscoelastic beam on an elastic foundation. For linear viscoelastic systems, the dissipation is found to scale with the square of the vehicle weight and with the inverse of the viscous relaxation time, in addition to distinct power relations of top-layer stiffness, thickness, and subgrade modulus. These scaling relations can be used by pavement engineers to reduce such pavement-inherent dissipation mechanisms and increase the fuel efficiency of a pavement design. An example shows the application of these scaling relations with data extracted from FHWA’s Long-Term Pavement Performance database for seven road classes. The scaling relations provide a means for evaluating the performance of the various road classes in terms of the fuel efficiency related to dissipation.

01551907

14-0377

English

pp 95–104

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295444

Print

Figures (7) ; References (20) ; Tables (3)

Databases; Dissipation; Fuel consumption; Pavements; Rolling contact; Rolling resistance; Vehicle weight

Long-Term Pavement Performance Program

Highways; Pavements; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Jan 27 2014 2:13PM

• Alternative Approach for Interpreting Traffic Speed Deflectometer Results
• Backcalculation of Asphalt Concrete Modulus Master Curve from Field-Measured Falling Weight Deflectometer Data: Using a New Time Domain Viscoelastic Dynamic Solution and Genetic Algorithm
• Backcalculation Procedure for Bonded Concrete Overlays of Asphalt Pavement
• Comparative Testing of Lasers for Ride Quality Measurement on Hot-Mix Asphalt Pavements
• Establishment of Relationship Between Pavement Surface Friction and Mixture Design Properties
• Evaluation of Widely Used Hydroplaning Risk Prediction Methods Using Florida’s Past Crash Data
• Incorporating Surface Microtexture in the Prediction of Skid Resistance of Flexible Pavements
• Influence of Aggregate Base Layer Variability on Pavement Performance
• Measurement of Pavement Roughness Using Android-Based Smartphone Application
• Pavement Raveling Detection and Measurement from Synchronized Intensity and Range Images
• Performance Predictions of Rutting for the National Center for Asphalt Technology Test Track
• Study of Cornering Maneuvers of a Pneumatic Tire on Asphalt Pavement Surfaces Using the Finite Element Method
• Subgrade and Foundation Dynamic Performance Evaluation by Means of Lightweight Deflectometer Tests
• Surface Drainage Evaluation for Rigid Pavements Using an Inertial Measurement Unit and 1-mm Three-Dimensional Texture Data