2017-04-24-CEC-ATM-STM1-rpt (incl Updates Errata)

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CAPITAL EXPENDITURES COMMITTEE REPORT TO 2017 ATM&STM 2017-1 (with Updates&Errata) the TAR and its portion of the Bikeway. The first study was completed in November 2010 and has been updated annually. The PMS is based upon an extensive roadway database describing pavement conditions and roadway characteristics, and among other things reports conditions using a Pavement Condition Index (PCI), which is a 100-point scale with 100 representing the best possible condition. Using the FY2017 Stantec update, the average PCI for the TAR continued to improve, from 74.9 the previous year to 77.0 this year. That 77.0 PCI signifies that the typical TAR condition in Lexington is within the "Routine Maintenance"band(68-87). (Note: The Town is transitioning to different software to continue the PMS. While the new software will use the term "Road Surface Rating (RSR)" rather than PCI, it will serve the same purpose and have comparable condition bands.) The initial study reported the replacement cost for just the TAR would be in excess of$85,000,000 in FY2011 dollars. (A more detailed analysis of the report is contained in this Committee's report to the 2011 ATM,beginning on Page 21). The FY2017 update states: Since the previous report, Lexington's PCI has improved by 2 points while the backlog dropped by nearly $6M...This is good news for the Town as the roadway network is in "good" condition while the backlog [the cost of repairing within one year all roads—but not including drainage, sidewalk, or traffic signals—to a near-perfect 100] is also at a very sustainable level. While the work done over the previous year resulted in some of the reduction in the backlog, Stantec reduced unit costs this year to reflect the Town's pavement repair costs....The distribution [of the network PCI] reflects a very positive trend with the majority of the network requiring no treatment or"Routine Maintenance". and cites the current backlog is $16,697,104. However, the update goes on to caution that: ...it is important to note that it is vital for the Town to establish an effective `Preservation Maintenance" program to bring "fair" condition streets to "good" condition at relatively inexpensive costs. The Town has been progressive with this approach by piloting various different treatments in recent years,but needs to determine which methods are most beneficial to maximize future life cycle costs. ...Stantec suggests the Town to secure at least$3.0M annually, at a minimum to maintain current conditions. However, if the Town secures $4.0M annually, after five years the backlog and network conditions will be vastly improved and allow the Town to lower budget allocated for roadways toward other assets. This Committee remains extremely pleased to see a quantitative basis for determining the condition of the Town-maintained pavements and the Town's success in making meaningful gains in the overall network's condition. It also supports the DPW's continuing efforts further to raise the Town's baseline pavement-condition grade to the next-higher band ("Crack Seal") Continuing with the PMS, along with DPW management of other potential impacts to our pavements (e.g., utility work, construction for storm-water and wastewater system improvements, sidewalk-related projects, etc.) offer the promise of an even-more productive and cost-effective program going forward. Funding for roads is provided by a combination of Town Funds (typically 72%±) and State Chapter 90 funds. (See Article 12(d, 1, &q)) Sidewalks The TAR is comprised of 907 segments and creates a sidewalk network with approximately 85 miles of sidewalks and contains 818 pedestrian ramps ("ramps"). (Source: Stantec Sidewalk & Ramp Network Conditions Update, January 2017.) In 2005, due to the overdue need to upgrade and extend the sidewalks, the BoS appointed the Sidewalk Committee. In 2014, the DPW with assistance from FST (its report, December, 2014), completed a sidewalk-condition survey. The survey results found that "the average area-based Sidewalk Condition Index (SCI) in Lexington was 68 which puts it in the middle of the "Partial Repair" treatment band. (An 85-100 score is the "Do Nothing"band.) The survey found 40% of the sidewalk network in the "Do Nothing" treatment band and 34% in the Localized Repair' treatment 20