A holistic framework for assessing co-benefits of street-scale green infrastructure interventions

评估街道规模绿色基础设施干预的共同效益的整体框架核心城区往往由街道峡谷组成，由于周围建筑物排放的交通和排放的限制，它们是污染最严重的城市环境之一。在城市地区使用绿色基础设施(GI)，如路边树篱、树木和绿墙/屋顶，可以帮助减少暴露在交通排放中，并提供许多其他共同好处，包括改善热量、减少噪音和增加生物多样性。然而，所有这些好处都对当地的环境非常敏感，计划不周的GI可能会使情况恶化或实现有限的共同好处。因此，该项目将结合实验、建模和文献综述来解决以下问题：在减少污染和由地理信息系统(GI)提供的其他共同利益(冷却、噪音缓解和生物多样性)之间有什么权衡？在不同的尺度上(街道尺度到城市尺度)有不同的取舍吗？这些权衡是否完全根据具体情况而定，或者是否可以派生出可概括的关系来帮助规划者最大限度地利用GI？通过回答上述问题所产生的所有知识将被用来开发一个易于使用的基于证据的评估框架，该框架有助于规划小规模地理信息系统功能的多种协同效益，并考虑到城市地区规划中迫切需要的本地环境。

A holistic framework for assessing co-benefits of street-scale green infrastructure interventions Core urban areas tend to bemade up of street canyons and are among the most polluted urban environments due to the restricted dispersion of trafficemissions by the surrounding buildings. The use of green infrastructure (GI) such as roadside hedges, trees, and greenwalls/roofs in urban areas can help to abate the exposure to traffic emissions and also offer many other co-benefitsincluding heat amelioration, noise reduction and increased biodiversity. However, all these benefits are very sensitive to thelocal context, and poorly planned GI can worsen situations or achieve limited co-benefits. Therefore, this project will use acombination of experiments, modelling and literature review to address the following questions: What are the trade-offsbetween pollution abatement and other co-benefits provided by GI (cooling, noise mitigation and biodiversity)? Arethere different trade-offs at different scales (street scale to city scale)?... Are these trade-offs completely context-specific,or can generalisable relationships be derived to help planners make the best use of GI? All the knowledge generatedthrough the answers to the above questions will be used to develop an easy to use evidence-based assessmentframework that helps to plan multiple co-benefits for small scale GI features, accounting for local contexts, which is sorelyneeded in urban area planning.