Agenda Packets - 2023/03/03 - Laserfiche WebLink

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• Vehicle characteristics • Pavement structure • Pavement damage evaluation • Cost evaluation • Development of a heavy vehicle damage cost model • Suggestions for mitigating the damage caused by heavy vehicles This study is primarily focused on the transportation of solid waste to centralized disposal sites, but the concepts relating to pavement damage are very similar to the topics under consideration in the current project. The study evaluated nine different vehicles and three different pavement types. It evaluated damage in terms of the number of ESALs required to reach the level of terminal serviceability on city streets and county highways. The terminal serviceability level in the model is selected by the user, thus allowing for a local definition of failure depending on the characteristics and classification of the roadway. Damage due to solid waste vehicles was predicted by estimating the incremental damage due to existing traffic plus additional solid waste vehicles, compared to the existing traffic alone. The study evaluated the damage with 10, 50, and 100% additional solid waste vehicles. The report states that for low volume flexible pavements in cities and counties, the additional damage was low to moderate for additional traffic up to 50% of existing, and moderate to high for solid waste traffic exceeding 50% of the existing values. As suggested by a another report, on higher volume roads, the additional damage is predicted to be less than that for lower volume roads. Annualized costs were predicted to be as high as 144% higher than normal when up to 50% additional solid waste traffic is applied to lower volume roadways in cities and counties, and up to 58% higher for higher volume roadways. The authors acknowledge that the model is sensitive to traffic loading, both in the existing and the additional heavy vehicle traffic. It is also sensitive to the frequency of maintenance and resurfacing activities (defined by the user) Liu, Highway Damage Costs, 20Q2 (4) This report is a Master's thesis discussing the impact on pavements due to heavy trucks related to the beef industry. This study includes the standard ESAL-damage computations, but also adds a component of environmental "decay" from which the impacts of heavy vehicles can be differentiated. These models are theoretical in nature, however, and may not lend themselves to direct application. Martin, Heavy Vehicle Road Wear Costs, 2002 (S) This is an Australian research project which attempts to estimate the impacts of heavy vehicles and the cost of road wear attributable to those vehicles. The paper states "The attributable road