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Streets Maintenance Streets Maintenance (without Road Impact Fees) Consultant will request the City's current methodology for the allocation of Right -of -Way activities between the General Fund, Special Gas Tax Street Improvement Fund and the Parking District Fund and review for logical consistency and applicability to Solid Waste/Diversion collection. Specifically, Consultant will focus on Storm Water Collection and Disposal costs as well as street sweeping, tree trimming, etc. Consultant will determine the total costs attributable to solid waste and then determine impact by Commercial and Residential service sectors. Road Impact Fees (Refuse Vehicle Impact Costs) Most of the deterioration of streets is caused by larger and heavier vehicles. A single, large truck can cause as much damage as thousands of automobiles. Solid waste, recycling, and yard waste vehicles (Refuse Vehicles) are the heaviest vehicles regularly operating on residential streets. While impacts differ from one jurisdiction to another, the impacts are significant. The underlying premise for the analysis is that the weight and loading of Refuse Vehicles impose a particular, specific, and identifiable impact on the City's streets that can be quantified in terms of the portion of the annual street maintenance cost attributable to those vehicles. The analysis is based on the fact that streets are designed to handle a certain amount of vehicle 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 Equivalent Single Axle Loadings (ESALs). Each vehicle type (e.g., cars, Refuse Vehicles,) can also be converted into an associated ESAL, based on the vehicle 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 that a street experiences that are attributed to each vehicle type. Based on a methodology Consultant has developed and utilized for other jurisdictions, Consultant will calculate the portion of the City's street maintenance costs that are attributable to: 1. Residential and Commercial solid waste, recycling, and yard waste vehicles (Refuse Vehicles). 2. Automobiles and other trucks not included above. (The identification of impacts associated with other vehicle types is intended only to understand the impact of Refuse Vehicles relative to total traffic impacts.) Page 10 of 13 REV: 12-12-17 MI ATTY/AGR.2017.288/HF&H Consultants, LLC - Solid Waste/Recycle Rates