Creating a Road Management System
Presented by the Stonecrest SPLOST Citizen Oversight Advisory Committee
January 14, 2019
Creating a Road Management System Presented by the Stonecrest SPLOST - - PowerPoint PPT Presentation
Creating a Road Management System Presented by the Stonecrest SPLOST Citizen Oversight Advisory Committee January 14, 2019 Presentation Outli line Introduction Road Management vs Pavement Management What is a Pavement Management
Presented by the Stonecrest SPLOST Citizen Oversight Advisory Committee
January 14, 2019
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1 Pavement Management Repair Resurface Rehab
2 Comprehensive
Improve Capacity
Road Management System
Repair Resurface Rehab
Comprehensive
Improve Capacity
DeKalb SPLOST TIP, CTIP, LMIG etc
What is a PMS?
Why PMS?
make good, fact-based decisions
What does it need?
BASIC QUESTIONS PAVEMENT MANAGEMENT SYSTEM COMPONENTS Where is it? How do we rate it? What condition is it in? When should we fix it? How do we fix it? Which roads do we fix first? NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION
PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION Location ➢Street Name/Limits Geometric Attributes ➢Length, Width, Area Structural Attributes ➢Asphalt or PCC ➢Curb & Gutter Traffic Attributes ➢ADT, Percent Trucks ➢Functional Class (Major or Local)`
PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION How do you rate the condition? Data Collection ➢Manual Survey ➢Automated Data Types ➢Surface Distress ➢Structural Integrity ➢Roughness Purpose ➢Document Condition ➢Evaluate M&R Strategies ➢Prioritize `
PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION What condition is it in? Pavement Condition Index (PCI) ➢Function of Distresses ➢Scale of 0 -100 PCI Calculation Approach ➢PMS Software ➢Deduct Methodology Pavement Quality Index ➢Function of Distress ➢Ride Quality ➢Structural Adequacy ➢Scale 0 -100
Data Collection Condition / Analysis Philosophies/Strategies Rehabilitation Needs ($) and Timing Define Inventory
Simplified Color Scale ASTM Rating Definition 86-100 GOOD: Pavement has minor or no distresses and should require only routine maintenance. 71-85 SATISFACTORY: Pavement has scattered low-severity distresses that should require only routine maintenance. 56-70 FAIR: Pavement has a combination of generally low- and medium- severity distresses. Near-term maintenance and repair needs may range from routine to major. 41-55 POOR: Pavement has low-, medium-, and high-severity distresses that probably cause some operational problems. Near-term maintenance and repair needs may range from routine up to a requirement for reconstruction. 26-40 VERY POOR: Pavement has predominantly medium- and high-severity distresses that cause considerable maintenance and operational
nature. 11-25 SERIOUS: Pavement has mainly high-severity distresses that cause
0-10 FAILED: Pavement deterioration has progressed to the point that safe
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PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION When do we fix the road? Prediction models help: ➢Forecast PCI ➢Optimal time of treatments ➢Remaining service life of pavements ➢Perform “what if” scenarios ➢Enable long term planning
PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION How do we fix it? Treatment Categories: ➢Preservation ➢Rehabilitation ➢Reconstruction Treatment Rules ➢Guides the user to the appropriate treatment choice Treatment Form ➢Decision trees ➢Tabular form ➢Software Programmed Rules
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PMS COMPONENTS PAVEMENT MANAGEMENT SYSTEM COMPONENTS NETWORK INVENTORY COLLECTION OF CONDITION DATA PAVEMENT CONDITION INDEX PREDICTION MODEL TREATMENT SELECTION PRIORITIZATION What roads do we fix first? Ranking Approach: ➢Use 1 or 2 criteria Example: Traffic Volume (ADT) and PCI ➢Ratio of Benefit to Cost Goal: Obtain the most bang for each buck!
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Good 23% Fair 29% Poor 48%
PCI = 0 - 55 PCI = 71 - 100 PCI = 56 - 70
100 Need $/SF Age 100 PCI Age 30 Do Nothing Preventive Minor Rehabilitation Major Rehabilitation & Reconstruction 60 $1 - 2 $5 - 10 $15-30
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