Pavement Management Systems. Tool for Keeping Pavement Networks in a State of Good Repair. Dr. Nick Vitillo

Transcription

1 Pavement Management Systems Tool for Keeping Pavement Networks in a State of Good Repair Dr. Nick Vitillo

2 STATE OF GOOD REPAIR In a country, where the majority of the traveling public and companies use local, county, state and Interstate roads for their daily commute and goods movement, preserving and maintaining these networks in a State of Good Repair is critical to providing efficient, reliable, and safe service and economic prosperity.

3 STATE OF GOOD REPAIR State of Good Repair is a dynamic target based on the Level Of Service (LOS) that the user expects or demands and is willing to pay for in the form of taxes or tolls. The LOS may be based on the condition (ride quality and distresses) of the pavement, reliability of the travel time, safety, and cost.

4 STATE OF GOOD REPAIR STATE OF GOOD REPAIR needs to be defined by the agencies. The level that defines GOOD can incorporate condition, safety, reliability, and cost. Based on this definition, the agency can estimate Where they are now Set the timeframe for achieving the desired SGR level Determine the funds necessary to achieving the desired level in the given timeframe Improvements in materials, technology, and knowledge can accelerate the rate at which we reach the STATE OF GOOD REPAIR. Example: Materials Improvements in mix design and additives have provided longer lasting pavements Design New design procedures have optimized pavement structures Technology - (Computer advancements and reduction in costs) improve design, construction, data collection, testing, and analysis of Preservation/Rehabilitation/Reconstruction treatments.

5 Less Than 100 Years Ago 2009 SASHTO Biloxi, MS Today Tomorrow?

6 Pavement Materials Pavement Design Pavement Construction Pavement Management Pavement Research Classification, quality assurance testing (specifications), material design Design of Structural layers for New Pavements and Pavement Rehabilitation Assess in-situ pavement material properties and layer thickness Construction practices of New Pavements and Pavement Rehabilitation including specification development and quality assurance Monitoring Post-construction condition, timing preventive preservation and rehabilitation treatments, and economic analysis of alternatives Research to improve all of the above

7 PAVEMENT MANAGEMENT SYSTEM Overview A Pavement Management System (PMS) is designed to provide objective information and useful data for analysis so that road managers can make more consistent, cost-effective, and defensible decisions related to the preservation of a pavement network. While a PMS cannot make final decisions, it can provide the basis for an informed understanding of the possible consequences of alternative decisions. A PMS does NOT make decisions, Managers DO!

8 Importance of Pavement Management Pavements deteriorate over time due to traffic/use, environment, and aging Poor road conditions increase vehicle owner costs $325 $700 annually (vehicle damage, tire wear, etc.) National average is $333 per motorist totaling $67 billion per year Poor road conditions are a contributing factor in many roadway accidents According to some studies as much as 30% of crashes each year) Good roads cost less if maintained at a reasonable level of service if they receive proper pavement preservation Preserving roads in good condition is key to maintaining the health of the State s Pavement Networks.

9 $ PAVEMENT MANAGEMENT SYSTEMS Data Collection Analyses Equipment Maintenance Sophistication Rutgers University - CAIT

10 Choosing What s Right for YOU Choosing What s Right for YOU

11 PMS PMS SUBSYSTEMS Subsystems -PMS DATA Inventory Condition - Pavement Evaluation History Initial, Pavement Preservation, Routine Maintenance, Rehabilitation, and Reconstruction Traffic Treatment Costs -MODELING - ANALYSIS Serviceability Rating Performance Predictions Economic Analyses-Budgeting / Programming -DATA MANAGEMENT Relational Databases Report Generation

12 PMS Data Collection PAVEMENT CONDITION EVALUATION PAVEMENT RIDE QUALITY SURFACE DISTRESS RUTTING SKID RESISTANCE

13 Need for Annual Condition Surveys Ride Quality, Surface Distress, Rutting, Skid Resistance Evaluate current condition of pavementnetwork Determine portion of the Network that requires Preservation, Rehabilitation, and Reconstruction Estimate the rate of deterioration Project future conditions to determine future maintenance & rehabilitation needs Determine future cost of repairs

14 Pavement Condition Survey Equipment Visual Windshield Condition Profiler roughness, distress, rutting Safety Skid Trailer Pavement friction Structural Capacity GPR FWD Rutgers University - CAIT

15 Pavement Condition Evaluation DATA COLLECTION CONTINUOUS - WINDSHIELD SURVEY/RATER KEYBOARD, 3D IMAGING AND AUTOMATED CRACK DETECTION

16 Distress Identification Manual for the Long-Term Pavement Performance Program NJDOT Version Standardization

17 Pavement Condition Evaluations * * * SURFACE DISTRESS BITUMINOUS/COMPOSITE PAVEMENTS Longitudinal Cracking Transverse Cracking * Alligator Cracking Patch Condition Rutting Pothole

18 Pavement Condition Evaluations ROAD QUALITY - USER PERCEPTION OF SMOOTHNESS SAFETY - SKID RESISTANCE, RUTTING, GEOMETRY, SIGHT DISTANCE

19 Pavement Performance Models TO PREDICT FUTURE CONDITON BASED ON PAST PERFORMANCE Prediction Model 100 Do Nothing Current Time Distress Index Pavement Preservation Rehabilitaton Reconstruction Years Default Distress Model Triggers

20 Effect of Treatment Timing on Costs Deterioration over time and cost to repair New Do Nothing Good < $2.00/sq yd Condition Fair Pavement Preservation Pavement Rehabilitation $20.00/sq yd Poor V. Poor Pavement Reconstruction $80.00/sq yd Time

21 Multi-Year Prioritization Performance Prediction Model Benefit or Effectiveness Pavement Condition Index Condition Increase Treatment Reset Life Extension (Area under the curve) Predicted Performance Trigger Limit Age or Traffic Loads Rutgers University - CAIT

22 Example Network Performance Scenario Policy Decisions can be based on the average projected condition at given budget levels for a single asset or for the entire network Network Performance Budget Scenarios Do nothing Spend $100 million Spend $300 million Good Current Condition How Much Condition SGR Level Poor Age When Rutgers University - CAIT

23 ECONOMIC ANALYSES $350,000, $300,000, $250,000, $200,000, $150,000, Preservation Rehabilitation $100,000, $50,000, $

24 REPORTING TOOLS Tables Section Year Cost Annual Construction Program $100, $237, st Qtr 2nd Qtr 3rd Qtr 4th Qtr Graphs Overall Network Condition GIS Maps

25 Questions? cait.rutgers.edu/prp