کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1065679 1485883 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cost-effectiveness of reductions in greenhouse gas emissions from High-Speed Rail and urban transportation projects in California
ترجمه فارسی عنوان
صرفه جویی در هزینه های کاهش انتشار گازهای گلخانه ای از پروژه های حمل و نقل شهری با سرعت بالا و کالیفرنیا
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی


• We compare the economic costs of transportation GHG emissions reductions.
• Cost-effectiveness of GHG reductions is dependent on the cost allocation technique.
• Assessments based solely on capital costs fail to capture indirect benefits.
• We found an urban bikeway to be the most cost-effective of four projects studied.

A rising trend in state and federal transportation finance is to invest capital dollars into projects which reduce greenhouse gas (GHG) emissions. However, a key metric for comparing projects, the cost-effectiveness of GHG emissions reductions, is highly dependent on the cost-benefit methodology employed in the analysis. Our analysis comparing California High-Speed Rail and three urban transportation projects shows how four different accounting framings bring wide variations in cost per metric tonne of GHG emissions reduced. In our analysis, life-cycle GHG emissions are joined with full cost accounting to better understand the benefits of cap-and-trade investments. Considering only public subsidy for capital, none of the projects appear to be a cost-effective means to reduce GHG emissions (i.e., relative to the current price of GHG emissions in California’s cap-and-trade program at $12.21 per tonne). However, after adjusting for the change in private costs users incur when switching from the counterfactual mode (automobile or aircraft) to the mode enabled by the project, all investments appear to reduce GHG emissions at a net savings to the public. Policy and decision-makers who consider only the capital cost of new transportation projects can be expected to incorrectly assess alternatives and indirect benefits (i.e., how travelers adapt to the new mass transit alternative) should be included in decision-making processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transportation Research Part D: Transport and Environment - Volume 40, October 2015, Pages 104–113
نویسندگان
, ,