01623060

Component

https://doi.org/10.3141/2639-08

The project has focused on the East Idaho Loop Corridor (EILC), representing 518 mi of primary roadways covering a wide range of geographic conditions. The Idaho Transportation Department (TD) has pursued this effort to support future project planning and design efforts and advance the management of its assets into a more efficient, best-first set of priorities. The EILC was surveyed with a traffic speed deflectometer (TSD) and with ground-penetrating radar (GPR). After preliminary review of the TSD data, segments were selected for falling weight deflectometer (FWD) testing to confirm patterns observed in the TSD data and to adapt FWD analysis methods to the TSD data. Ninety-nine borings were taken to confirm the pavement layer structure and verify thickness calculations. The Idaho TD data were analyzed at a 10-m interval with the GPR layer thickness data to determine subgrade modulus, pavement modulus, and structural number. These values were then used to estimate overlay requirements and, given traffic projections, to calculate the remaining life as a continuous function of roadway position. The data were incorporated into a spatial geodatabase that provides the Idaho TD with a convenient means to visualize and evaluate the overall condition of the network down to the detail of its individual segments. The segments were subdivided into homogenous subsections on the basis of remaining life, and these subsegments were used for identifying and programming rehabilitation projects. The level of condition detail available at the subsegment level allows for pavement design and for scoping restoration projects.

01632579

17-01661

English

pp 55–63

2017

Transportation Research Record: Journal of the Transportation Research Board

9780309441636

Digital/other

Figures (8) ; Maps; Photos; References (9) ; Tables (1)

Databases; Deflectometers; Evaluation; Falling weight deflectometers; Ground penetrating radar; Modulus; Pavements; Structural analysis; Traffic speed

Idaho Transportation Department

Geodatabases; Pavement structural evaluation; Remaining life analysis; Traffic speed deflectometers

Idaho

Highways; Maintenance and Preservation; Pavements

PRP, TRIS, TRB, ATRI

Dec 8 2016 10:34AM

• Assessing the Effect of Considering Multiple Data Properties on Detecting Potential Errors in Pavement Condition Data
• Assessing the Effects of Rising Groundwater from Sea Level Rise on the Service Life of Pavements in Coastal Road Infrastructure
• Challenges to Using Environmental Product Declarations in Communicating Life-Cycle Assessment Results: Case of the Asphalt Industry
• Combined Model Framework for Asphalt Pavement Condition Determination After Flooding
• Coordination of User and Agency Costs Using Two-Level Approach for Pavement Management Optimization
• Cost-Effective Performance Management for Washington State Pavement Assets
• Estimation of Pavement Serviceability Index Through Android-Based Smartphone Application for Local Roads
• Evaluation Framework for Automated Pavement Distress Identification and Quantification Applications
• Incorporating Braking Distance Evaluation into Pavement Management System for Safe Road Operation
• Microscale Heat Island Characterization of Rigid Pavements
• Pavement Friction Degradation Based on Pennsylvania Field Test Data
• Probabilistic Characterization of Life-Cycle Agency and User Costs: Case Study of Minnesota
• Sampling to Evaluate Performance on the Interstate Highway System
• Statistical Model to Detect Voids for Curled or Warped Concrete Pavements