Item A: Status Report on Local Gas Tax

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PAVEMENT MANAGEMENT SYSTEM A Pavement Management System (PMS) performs analysis of collected rating data and reports on the current and projected conditions of the street system. In addition, it is used to evaluate the effectiveness of planning and funding priorities, and provides guidance in the decision making process. The goal of the decision making process is to prevent pavement failures through judicious maintenance. The PMS used by the City of Eugene since 1987 is CenterLine. CenterLine was developed by Washington’s League of Cities and Washington County Roads Administration Board (CRAB) in conjunction with the Washington Department of Transportation (WDOT). The PMS combines visual field inspection ratings, compiled under strict criteria, with computer tracking and condition analysis. The rating methodology for field inspections used prior to 2010 was the WSDOT Standard method. Beginning in 2010 the rating methodology was revised to the WDOT’s Extended (WSEXT) method, keeping the program consistent with industry standards. Eugene’s PMS contains 23 years of historical data and has the ability to estimate financial needs and road conditions 20 years into the future. Pavement Inspection Frequency Two predominant work efforts required to maintain the PMS are updating the street inventory and performing the annual inspection of surface conditions. City streets are divided into segments based on their Functional Classification (FC), pavement type, and geometric design. Segments are the basic unit for evaluating streets and surface conditions. A segment is defined as a portion of a street with a beginning and ending description. Changes in geometric features are used as a guide for determining segments. Examples of geometric differences are surface type, segment widths, surface age, and extent of past rehabilitations. Field inspections are conducted by pavement raters who walk each individual street segment evaluating the pavement surface for signs of distress. all In 2010 streets were inspected in order to transition to the new rating methodology. For an accurate base line of rating data, staff intends to complete another full inspection in 2011 as well. Once the baseline is completed the program will resume with standard annual inspection intervals; City arterial and collector streets are inspected annually. Residential streets inspections are completed in a three year cycle and off-street shared-use path inspections are completed in a two year cycle. Overall Condition Index (OCI), Deduct Values, and Distresses Pavement distresses are dependent on pavement type and are rated by severity and extent. A street with an OCI of 100 represents a new or recently rehabilitated street. This OCI value is the basis used to analyze the surface treatment needs. Distress data are collected using handheld computers (IPAQ’s) and then uploaded to CenterLine The extended method (WSEXT), rates severities and all their extents, this information is then used to determine a deduct value. A segment’s OCI is calculated by subtracting the deduct values from 100. As the condition of a street’s surface begins to deteriorate the OCI decreases. Asphalt distresses typically observed are alligatoring, longitudinal and transverse cracks, rutting, raveling, and some maintenance procedures such as crack sealing and patching. Concrete distresses observed are cracks per panel, raveling, joint spalling, faulting, and crack sealing. 6