City Council Agenda and Packet 2023 02 28 SP

Home Browse Search

1.0 EXECUTIVE SUMMARY 1.1. Project Overview In September of 2021, IMS deployed a state-of-the-art Road Surface Tester (RST) (shown in Figure 1) to Louisville (City) to capture continuous, high -resolution pavement cracking, rutting, and roughness data on 101 centerline miles of majority asphalt roadways. Collected data were entered into Lucity pavement management system and representative pavement condition scores were determined for each roadway segment. The Lucity pavement management system was used to develop multi -year pavement maintenance and rehabilitation (M&R) recommendations, which are included in this report. The Pavement Condition Index (PCI) method was used in accordance with the American Society for Testing and Materials (ASTM) D6433 to assess the condition of the City pavements. Widely used in the industry, the PCI method is a standard, objective and repeatable approach to assess pavement condition. Based on the PCI results, Lucity prioritizes funding using a cost -of -deferral approach, recommending M&R activities that optimize funding by selecting rehabilitation candidates only when they approach the critical point where a heavier maintenance activity will soon be needed to restore the roadway to full service. The analysis and data presented in this report are based on the inspections performed by IMS in September 2021 on the City's pavement network, using available work history and other assumptions that are elaborated on later in this report. Roadways that were rehabilitated or reconstructed after the field inspection was performed were assigned a very high reset PCI value. All other segments were deteriorated using the defined pavement deterioration models to reflect the conditions of the roadways at the time of analysis (August 2022).The information presented in the Executive Summary is condensed from various sections of this report. It is essential that reviewers familiarize themselves with the detailed information provided in subsequent sections of this report prior to making any specific decisions based on these results. Figure 1 - IMS Road Surface Tester (RST) IMS Pavement Management Report Louisville, CO 2022 Page 1 1