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 […]

What we mean by a subjective approach is a property manager will rate or prioritize pavement conditions visually or with a seat of the pants approach. Rating is made by what looks worse or how uncomfortable the ride is. With pavement management, a subjective approach can work on a single, small property […]