Conceptual Approach to Pavement Management

Learning Objectives

Describe the components of a pavement management system

Describe the types of models that are used in a pavement management system

Describe the use of pavement management techniques in a transportation agency

Approach

Introduce Pavement Management Conceptually

Introduce the Components of a Pavement Management System

Discuss Each Component in More Detail

Illustrate the Ways Pavement Management Results Can Be Used

Pavement Management Is a management approach used by personnel to make cost-effective decisions about a road network.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.

Purpose of Pavement Management

Identify and prioritize maintenance and rehabilitation needs

Select projects and treatments on an objective, rational basis

Assist agencies in determining cost-effective treatment strategies

Allocate funds so an agency can get the most “bang for the buck”

Demonstrate impacts of alternate strategies

Managing Pavement Deterioration

Type of Data to be Collected

Physical characteristics

Construction and maintenance history

Traffic levels

Climate information

Soils information

Minimal Amount of Information Required

Surface type

Last construction date

Physical dimensions

Network Definition

Used to link network inventory information to a physical location in the field.Determine section boundaries by evaluating the road characteristics. Sections should be similar in terms of surface type, structure, and traffic

Identify beginning and end points and width

Condition Assessment

All system recommendations are based on the current and predicted conditions of the sections in your network ,Therefore, the assessment of current condition MUST be objective and repeatable BUT, it must also match available resources.Types of Pavement Condition Data Collected

Surface distress (cracking, surface deform,Roughness (ride),Faulting,Rutting,Skid resistance,Structure (pavement strength and deflection)

Condition Indices

Individual Indices

Ride Index

Structural Index

Cracking Index

Composite Index

40% Ride + 40% Structural + 20% Cracking

S (Deduct points associated with a distress type, severity, and extent combinations)

Analysis Approaches

Once needs are identified, there must be a way of prioritizing the list and determining which projects should be funded

Three approaches

Ranking

Multi-Year Prioritization

Optimization

Benefits of Pavement Management

More efficient use of available resources

Ability to justify funding needs

More accurate and accessible information on the pavement network

Ability to track pavement performance

Ability to show impacts on condition

Improved communication