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PRESENTATION ITEM — 4C <br />, VN HILLS <br />MEMORANDUM <br />DATE: September 18, 2023 <br />TO: Honorable Mayor and City Councilmembers <br />David Perrault, City Administrator <br />FROM: David Swearingen, P.E. Public Works Director / City Engineer <br />SUBJECT: Professional Services for Pavement Condition Data Collection <br />Budgeted Amount: Actual Amount: Funding Source: <br />$20,000 $34,000 Street & Trail Maintenance (PIR) <br />Council Should Consider <br />The City Council is requested to consider professional services with Infrastructure Management <br />Services (IMS) for gathering pavement condition data for streets and trails in the amount of <br />$34,000. <br />Background/Discussion <br />Pavement condition ratings are one of the main tools used for planning future pavement <br />improvements and determining the best method for maintaining streets and trails, such as seal <br />coating, resurfacing or reconstruction. Pavement condition surveys for streets have traditionally <br />been conducted every three years and were last performed in 2021 via automated method with <br />IMS. Pavement condition surveys for trails have traditionally been conducted every 6 years and <br />were last performed in 2017 via visual inspection by Public Works staff. <br />Using the visual approach by field staff can be subjective and inconsistent due to variations <br />between individuals performing the evaluation and the selected observation locations. Staff has <br />previously noted concerns with the consistency and accuracy of existing pavement condition <br />ratings. <br />In 2021, in an effort to improve the data collection process for City streets, staff solicited a <br />proposal from IMS to collect pavement condition ratings through automated vehicle mounted <br />equipment using a laser -camera array that eliminates subjectivity of the data collection process. <br />Pavement data can be easily transferred to the City's ICON software which is used to store and <br />evaluate the historical data of Arden Hills' pavement system. The automated process by IMS <br />also improves safety by minimizing the time personnel are working on the streets collecting the <br />necessary measurements needed through visual evaluation. <br />Page 1 of 2 <br />