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原文传递 Sustainability Strategies to Minimize the Carbon Footprint for Connecticut Bus Operations.

题名：	Sustainability Strategies to Minimize the Carbon Footprint for Connecticut Bus Operations.
作者：	Lownes, N.; Cohen, J.; Pines, D.; Islam, A.; Larsen, D.
关键词：	Greenhouse gas emissions, Battery electric buses, Hydrogen fuel cell buses, Carbon footprint, Greenhouse gas inventory, Social cost of carbon, Life-cycle cost analysis, Alternative fuel buses, Hybrid diesel-electric buses, Recommendations, Bus Operations
摘要：	The objective of this study is to identify a strategy to minimize the carbon footprint for CTDOT-contracted bus operations in Connecticut, bus systems owned by CTDOT and branded as CTtransit, including resulting benefits and challenges. The economic value of investments necessary to achieve strategy goals in terms of initial capital costs, ongoing operating costs including life-cycle costs, and overall benefits/savings were considered and presented in an easy-to-read and comprehensible format. The carbon footprint was calculated/estimated for all CTDOT-contracted bus operations. This analysis looked at the carbon footprint associated with day-to-day operations of equipment and facilities. The recommendations are consolidated into four categories: rolling stock, facilities, resilience, and monitoring. The primary conclusion is as follows: the most effective strategy for minimizing the carbon footprint of CTDOT-contracted bus operations is to reduce greenhouse gas (GHG) emissions through the replacement of the existing fleet with battery electric buses over the next 12 years. Battery electric buses outperform existing and alternative fuel technologies with respect to the reduction of GHG emissions and provide the additional benefit of having the second lowest expected life-cycle cost of alternative fuel technologies. Additionally, CTDOT can effect further reductions by adopting recommendations and standards for retrofitting existing bus facilities and constructing new bus facilities that are designed to reduce GHG emissions and energy consumption. In adopting these strategies, CTDOT should consider the resilience of the fleet and its operations, and institute a practice of monitoring, and modifying as needed, the assumptions of this analysis and updating these strategies accordingly.
报告类型：	科技报告