Download
1 / 9
90 likes | 182 Views
Learn about Tennessee's robust pavement asset management approach, including inventory, condition assessments, and management strategies for their extensive roadway network. Discover how continuous updates and data collection drive decision-making for maintaining optimal pavement quality.
E N D
Tennessee’s Asset Management Approach for Pavements Donald Reid DESIGN DIVISION As revised 03-08-01
GASB 34 Requirements • Inventory of Pavement Assets • Condition Assessments • Management Strategies
Inventory of Pavement Assets Interstate System in Tennessee • 1073 miles State Route System (non interstate routes) • Region 1: 2437 miles 154 miles divided • Region 2: 2376 miles 83 miles divided • Region 3: 3185 miles 118 miles divided • Region 4: 2687 miles 106 miles divided Continuous Inventory Updates with TRIMS Transportation Roadway Information Management System
Condition Assessments Data Collection: • Infrastructure Management Services (IMS) • Data Collected: • Roughness, Rutting, Distress • Frequency: • Collect Condition Data on Interstate Every Year • Collect Condition Data on NHS Every Year • Collect Condition Data on STP 1 Region Per Year • Pavement Condition Rating: • PSI-Pavement Roughness Index • PDI-Pavement Distress Index • PQI-Pavement Quality Index
Management Strategies Goals and Objectives • Interstate System • 90 % of all interstate highways will be in good or very good condition • No more than 10 % of all interstate highways will be in a poor or very poor condition • The current goal is an 8 year resurfacing cycle • State Route System • 85 % of all state routes will be in good or very good condition • No more than 15 % of all state routes will be in a poor or very poor condition • The current goal is a 12 year resurfacing cycle
What’s Next? • Performance prediction models • Structural design optimization • Pavement decision tree validation • Future pavement needs prediction models
