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首页> 外文期刊>International journal of sustainable transportation >Greenhouse gas emissions associated with materials used in commuter rail lines
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Greenhouse gas emissions associated with materials used in commuter rail lines

机译：与通勤铁路线中使用的材料相关的温室气体排放

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摘要

The research summarized here provides a technique to assess the greenhouse gas (GHG) emissions associated with the construction of commuter rail projects. The main focus is on the upstream emissions associated with materials, specifically, tracks, catenary, station platforms, parking facilities, and tunnels and bridges. Data on materials used and the dimensions are outlined based on available engineering guidance. Emissions factors for each component are derived from existing databases of upstream emissions. A case study of five New Jersey Transit commuter rail lines is analyzed to demonstrate the applicability of the data for deriving GHG estimates. Results provide useful insights on what material components of construction are associated with the largest fraction of GHG emissions. Catenary systems for electrified track tend to have large embodied upstream GHG emissions due to their copper content.
机译：此处总结的研究提供了一种评估与通勤铁路项目相关的温室气体（GHG）排放的技术。主要关注与材料相关的上游排放，特别是轨道，悬链线，站台，停车设施以及隧道和桥梁。根据可用的工程指导概述了所用材料和尺寸的数据。每个成分的排放因子均来自现有上游排放数据库。对五个新泽西州的通勤铁路线进行了案例研究，以证明数据在推导温室气体估算中的适用性。结果提供了有关建筑的哪些材料成分与温室气体排放量最大比例相关的有用见解。电气化轨道的悬链线系统由于含铜量较高，往往具有较大的上游温室气体排放量。

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