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个人移动选择和碳排放差异
An Wang1, Scott Weichenthal2, Marshall Lloyd2
1Senseable City Lab, Department of Urban Studies and Planning, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
Environmental science & technology
|June 1, 2023
概括
顶级排放者驱动大部分运输温室气体 (GHG) 排放. 可持续的移动解决方案必须解决社会经济因素和土地利用,以减少差距,并改善所有城市居民的空气质量.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 运输研究 运输研究
背景情况:
- 可持续的移动性是交通脱碳的关键.
- 了解城市居民的选择和绿色交通中的公平是必不可少的.
- 与个人流动相关的温室气体 (GHG) 排放对气候变化作出了重大贡献.
研究的目的:
- 量化大多伦多和汉密尔顿地区 (GTHA) 个人移动相关的温室气体排放量.
- 确定温室气体排放与土地利用,建筑环境和社会经济因素之间的关联.
- 探索出行温室气体排放与交通相关空气污染之间的空间关系.
主要方法:
- 量化个人,家庭和社区层面的流动性相关的温室气体排放.
- 分析了与土地使用,建筑环境和社会经济数据的关联.
- 采用计算机视觉模型来预测来自空中图像的温室气体排放.
主要成果:
- 前30%的排放者占运输温室气体排放量的70%.
- 较高的家庭收入,家庭规模和车辆所有权与增加的排放相关.
- 人口密度增加和邻里明显少数群体的存在与更低的排放量有关.
- 土地使用混合度较高的地区显示出基于流动性的温室气体排放较低.
结论:
- 在GTHA中,与移动相关的温室气体排放存在显著差异.
- 可持续的流动性需要有针对性的干预措施,考虑到社会经济和土地利用因素.
- 低排放的交通选择可能与交通相关的空气污染暴露率更高的空间相关.
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