CITY COUNCIL REGULAR MEETING AGENDA PACKET

Managing Tomorrow’s Resources Today ZeeLaura Page May 8, 2024 Page 5 of 8 traffic (loading) over their design life. That loading is a function of both the number and weight of vehicles. The lifetime “vehicle loading” that a street can accommodate can be expressed as the total number of ESALs. Each vehicle type (e.g., Refuse Vehicles, other trucks, and automobiles) can be converted into an associated ESAL, based on the vehicle’s weight and its distribution among the vehicle’s axles. By projecting the type and number of vehicles that will travel on a street over its design life, the total number of ESALs can be calculated, and the street designed to handle that projected loading. Similarly, the relative impact of each type of vehicle on that street can be calculated based on the percentage of the total ESALs attributed to each vehicle type. Methodology The methodology used to project the impact of Refuse Vehicles can be summarized as follows: Determine Design Standard HF&H used data provided by the City to estimate a design Traffic Index (TI). This resulted in an estimated residential street TI of 5 or 7,161 ESALs. Collector streets were estimated to have a TI of 7 or 121,021 ESALs. Arterial streets were estimated to have a TI of 9 or 1,000,000 ESALs. Determine the Impact of Each Vehicle Type HF&H collected from Pleasanton Garbage Service and through independent investigation, vehicle weights and profiles for the various vehicles being studied in this analysis. Each vehicle type was modeled based on weight, vehicle specifications, axle profile, and average payload. This modeling produced an average ESAL for each pass of each vehicle type, which was then used to assess the direct impact of each vehicle trip by each vehicle type. Project Maintenance Costs Associated with Each Vehicle Type We obtained the City’s annual Streets and Roads Report data for the period FYE 2018 through FYE 2022. These annual costs were escalated by the Engineering News Record Construction Cost Index for San Francisco to bring the costs into current 2024 dollars. This data was used to calculate the percentage of funding that was dedicated to pavement versus non-pavement related activities. This calculation was used as the basis for the Average Annual Expenditures. The Average Annual Expenditures were allocated among residential, collector, and arterial streets in proportion to the percentage of lane miles for each of those street classifications. The residential, collector, and arterial street portions of the Average Annual Expenditures were allocated among the various vehicle types in proportion to the calculated impact of each vehicle type, as determined above. Key Assumptions/Inputs The analysis relied in part on the following key assumptions, provided by the City and Pleasanton Garbage Service and supplemented with data from other sources as noted: • Residential streets account for approximately 42.5% of the total residential, collector, and arterial lane miles in the City. Page 45 of 720