City of South Burlington Pavement Management

System

May 2011

Prepared by: Justin Rabidoux

2

What is a Pavement Management System?

“An ongoing process of maintaining, upgrading, and operating your pavement

system cost effectively, based on a continuous physical inventory

and condition assessment”

Pavement Management Is…

• …a management approach used by personnel to make cost-effective decisions about a road network.

AASHTO Pavement Management Guide (2001)

A Pavement Management System Is…

• …a set of tools or methods that assist decision-makers in finding optimum strategies for providing, evaluating, and maintaining pavements in a serviceable condition over a period of time.

AASHTO Guide for Design of Pavement Structures (1993)

Why Use a Pavement Management System?

Limited Taxpayer Money

Requires a Cost-Effective Method of Deciding How

to Invest Limited Resources

Reactive Maintenance:

•Rehabilitation

•Reconstruction

Proactive Maintenance:

•Preventative Maintenance

$$$$ $

The Use of Pavement Management Tools

• Identify and prioritize maintenance and rehabilitation needs

• Evaluate the impact of various programs through a comparison of conditions, backlog, or another measure

• Establishing pavement condition targets• Setting budget needs

Benefits of Pavement Management

• More efficient use of available resources• Ability to project future funding needs• More accurate and accessible information

on the pavement network• Ability to track pavement performance• Ability to show impacts on condition• Improved communication

Why Use Micro PAVER Software?

• Developed by the Army Corps in the late 70’s• Recommended by APWA (American Public Works Association)• Optimizes funds allocated for Maintenance and Rehabilitation • Utilizes the Pavement Condition Index (PCI) methodology• PCI became an ASTM standard in 1999• Most widely used Pavement Management Software in the world

What Does Micro PAVER Do?

• Inventory • Inspection (ASTM)• Reporting• Modeling• Condition Analysis• Project Planning

Problem• Deteriorating Pavements

– More traffic, trucks, buses– Less funding available– Road materials are more costly

Investment Value

Value at $5 per sf= $60 million

~81 miles of streets = 12 million square feet of pavement

PCI Concept

PCI

Distress Severity

Distress Type

Distress Quantity

70 to 100 Very Good

55 to 70 Good

40 to 55 Fair

0 to 40 Poor

PAVEMENT LIFE CYCLE

FAILED

EXCELLENT

GOOD

POOR

40% Drop in Quality 75% of Life

40% Drop in Quality

Small % of Life

AGE

FAIR

VERY GOOD

$1 Here

$3-$5 Here

PCI

Managing Pavement Deterioration

PCI

AGE

Cost-effective time for minor rehabilitation

Costly treatments needed

Cost-effective time for preventive maintenance

Critical Condition

Treatment Rules: Type, Timing, Cost

Routine Maintenance: Joint and crack sealing, surface seals, pothole filling

Excellent

FailedAge

Preventative Maintenance: Patching, thinner overlays

Reconstruction

Rehabilitation: Mill & fill overlays

PCI

$1 Here >>>>>>>>>>>>>>>>>>>>>>

$3 To $5 Here >>>>>>>>>>>>>>>>

________________________________________________________AGE

Pavement Deterioration

PCI

17

Index Rating

Asphalt Distresses1 1 Alligator Cracking2 Bleeding2 Bleeding3 Block Cracking3 Block Cracking4 Bumps & Sags4 Bumps & Sags5 Corrugation5 Corrugation6 Depression7 Edge Cracking8 Joint Reflection9 Lane/Shoulder Dropoff

Asphalt Distresses10 10 Longitudinal &

Transverse Cracking11 Patching11 Patching12 Polished Aggregate12 Polished Aggregate13 Potholes13 Potholes14 Railroad14 Railroad15 Rutting16 Shoving17 Slippage18 Swell19 Weathering