City Council Agenda and Packet 2023 02 28 SP

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3.7. Summary Section 3 reviewed the results of the condition survey in the City. The PCI scale was explained through a series of pavement photographs that were taken during the 2021 survey. The section then described each of the four functional classifications in the City and outlined their respective conditions on the PCI scale. The section concluded with a discussion on the overall pavement condition distribution in the City and some useful charts that help put the survey results into perspective. The network average PCI in the City is 73 with a backlog of 2%. 4.0 REHABILITATION PLAN AND BUDGET DEVELOPMENT 4.1. Foreword This section discusses the results of the pavement management analysis that was performed using the Lucity pavement management system. First is an overview of the assumptions that were used when implementing the system. Some of these include the development of accurate unit rates, and the selection methodology for rehabilitation candidates. Next, in 4.3, the results of each of the various budget runs is detailed, along with their predicted conditions. This is highlighted further through a series of charts that are used to demonstrate the advantages and disadvantages of various funding models. Finally, the City's selected budget is presented through a map and chart outlining the 6-year projected condition. 4.2. Key Analysis Set Points and Assumptions Pavement management analysis requires user inputs to complete its condition forecasting and prioritization. A series of operating parameters were developed to create an efficient program that is tailored to the City's needs and goals. Selecting Segments for Rehabilitation The selection of rehabilitation candidates through a worst first approach or subjective committee input is neither efficient nor cost effective. A series of criteria must be established and their importance in the selection process determined. Lucity has defined commonly used criteria within the program that allows different weighting factors to be applied depending on the City's goals. • PCI — As mentioned earlier in this section the results of the pavement condition survey are used to generate a Pavement Condition Index that ranges from 0-100 where 0 is considered the worst and 100 the best. This factor can be given a higher weight to give greater priority to poor condition streets. • Cost of Deferral — As time passes a pavement will deteriorate and require more costly repairs as it ages. Lucity can be configured to prioritize streets nearing the point where this cost increase occurs. • Pavement Strength —Through the use of deflection testing or the prevalence of load associated distresses the relative strength of a pavement can be determined. A prioritization factor can be applied that gives preference to streets that may deteriorate faster in order to apply more cost- effective rehabilitation early in the life cycle. IMS Pavement Management Report Louisville, CO 2022 Page 1 27