The Zimmer Report: Pavement Condition History

By knowing the construction date or date of last overlay, we can make a prediction of future conditions.  This can be done for individual management units, a property, or for a portfolio. The Figure illustrates six pavement inspection points with predicted conditions. The yellow diamonds present the actual pavement condition […]

The Zimmer Report: Condition Frequency Charts

A property’s Pavement Condition Index (PCI) numbers can be divided into seven levels ranging from Excellent to Failed, and then charted.  We call these figures condition frequency or FREQ charts. They are plotted two different ways, bars and stacked. They present the exact same date, but a user may find […]

The Zimmer Report: The Small Property Version

For over three decades, we have been refining the pavement management process for pavement owners. The Zimmer Report is the product of our ongoing processes to create useful documents for our clients. The image is of our short report for small properties. These reports will answer your questions about how […]

Pavement Rating: The Heart of It All

The Pavement Condition Index (PCI) is the most important element of determining pavement conditions.  It is at the heart of the Zimmer approach to managing pavements. The PCI was developed at the Corps of Engineer’s Construction Engineering Research Laboratory (CERL) in Champaign, Illinois by my friends, Mo Shahin, PhD. and […]

Pavement Rating: Moving from a Subjective to an Objective Approach

A subjective pavement management approach can work on a single, small property where an operations manager can remember pavement conditions over the years, but for larger properties, regions and portfolios, we recommend an objective approach to prioritize and budget for maintenance and rehabilitation (M&R) programs.   Starting an objective program […]