Guide to Deploying Clean Truck Freight Strategies (2017) / Chapter Skim
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Pages 39-57
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From page 39... ...
39 This chapter offers sample case studies demonstrating scenarios in which the tool can be used. The tool and user guide are available on the TRB website (by searching for "NCHRP Research Report 862" at www.TRB.org)
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40 Guide to Deploying Clean Truck Freight Strategies the Class 3–5 size. Single-unit long-haul trucks are typically box trucks that travel within a regional area and are generally Classes 6–7.
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Tool Case Studies 41 Category Selection Notes Analysis Analysis Truck Deployment Analysis This analysis allows the user to estimate full costs and emissions impacts of a program. Scope Year of Modification 2030 The modification year is when the modifications or replacements take place.
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42 Guide to Deploying Clean Truck Freight Strategies Results. Table 17 summarizes the impacts of replacing diesel with alternative fuel options on CO2 emissions.
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Tool Case Studies 43 Category Selection Notes Analysis Analysis Truck Deployment Analysis This analysis allows the user to estimate full costs and emissions impacts of a program. Scope Year of Modification 2030 The modification year is when the modifications or replacements take place.
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44 Guide to Deploying Clean Truck Freight Strategies many of the alternative fuel options also include replacing old trucks with expensive advancedtechnology trucks, their high emissions reductions make the cost-effectiveness better than that of this strategy. Thus, in terms of both CO2 reductions and cost-effectiveness, the alternative fuel strategies are better than accelerated retirement with new diesel trucks, with electric trucks offering the greatest CO2 benefits, and the drop-in fuels being most cost-effective.
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Category Selection Notes Analysis Analysis Funding Impact Analysis This analysis allows the user to estimate the number of trucks and emissions impacts of implementing various strategies with a known amount of funding. Scope Year of Modification 2030 The modification year is when the modifications or replacements take place.
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46 Guide to Deploying Clean Truck Freight Strategies Results. Table 23 shows some of the results from the Incentive Analysis.
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Tool Case Studies 47 covered by the agency. As expected, the cost-effectiveness improves (i.e., the dollar per ton goes down)
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48 Guide to Deploying Clean Truck Freight Strategies 6.2.1.1 Incentive Analysis – Idle Reduction The Incentive Analysis lets the user estimate the impacts of partially subsidizing modifications or replacements. The Incentive Analysis assumes that the public agency promotes strategies that reduce operating (i.e., fuel)
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Tool Case Studies 49 Category Selection Notes Analysis Analysis Incentive Analysis This analysis allows the user to examine the impacts of offering various levels of incentives. Scope Year of Modification 2020 The modification year is when the modifications take place.
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50 Guide to Deploying Clean Truck Freight Strategies 6.2.2 Scenario The Tennessee DOT has received $2 million to reduce PM emissions from urban delivery trucks operating in the state by incentivizing truck owners to replace their vehicles with alternative fuel trucks. The agency wants to know which strategy is the most cost-effective and which trucks and fuels to target.
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Tool Case Studies 51 Category Selection Notes Analysis Analysis Truck Deployment Analysis This analysis allows the user to estimate full costs and emissions impacts of a program. Scope Year of Modification 2020 The modification year is when the modifications take place.
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52 Guide to Deploying Clean Truck Freight Strategies The costs for these strategies are high, especially since most of the alternative fuel strategies require replacing trucks. For this reason, the cost-effectiveness of these strategies is generally poor, with most above $1 million per ton of PM emission avoided.
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Tool Case Studies 53 The impacts vary depending on both the fuel of the truck being replaced and the modification. The Number of Trucks to Modify/Replace column indicates how many trucks can modified with $2 million to cover capital costs.
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54 Guide to Deploying Clean Truck Freight Strategies Baseline Fuel Modification Number of Trucks to Modify/Replace Annual PM2.5 Emissions Reduced (tons) CostEffectiveness ($/ton)
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Tool Case Studies 55 100 diesel combination-unit short-haul trucks with trucks with advanced low-NOx engines fueled by renewable CNG. The results from this analysis will be compared to the results of the accelerated retirement analysis described in the following section to address the scenario.
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56 Guide to Deploying Clean Truck Freight Strategies Results. The results of the alternative fuel deployment analysis described in the previous section and of the accelerated retirement deployment analysis described previously are shown in Table 32.
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Tool Case Studies 57 and assumes that the trucks are fueled with CNG produced from renewable sources (such as landfill gas in this scenario) , which reduces life-cycle carbon emissions.
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