La reconversion des friches polluées au service du renouvellement urbain : enseignements technico-économiques

L. Château, Yann Milton, Benjamin Pauget, S. Petit, Cédric Challaye
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引用次数: 2

Abstract

Since 2010, the French Agency for Environment and Energy Management (ADEME) contributes to urban renewal by supporting brownfield redevelopment towards the creation of housings, economic activities and public equipment. Thus, ADEME financially supported 102 projects during the 2010-2016 period. Which technical and economic outcomes can we pull from these operations on both remediation and land management aspects? What are the impacts of those projects on local area? Can useful conclusions be draw to land management actors? The review conducted by ADEME in 2018 aimed at answer such issues. The main outcomes, quoted below, strengthen the interest of such public support:  The review was focused on a panel of 95 cases that represents 492 hectares of brownfields, of which 90 were remediated, a remediation costs of 217M€ (of which 38 M€ were funded by ADEME. The redevelopment projects on this panel are aimed at the construction of 2.8 millions square meters of building floor surface, and 23000 housings (of which 38% are social housings). 58% are land management operations, 37% real estate operations and 5% aim at public equipment construction;  There is a clear distinction between the technical and economic characteristics of land management operations and real estate ones;  The cost of remediation is significant in the economic balance of the operation;  Invest in remediation pre-studies helps to control remediation works risks;  Environmental-friendly remediation techniques (on site on in situ) grow over time;  The impacts of brownfield redevelopment (benefits and externalities) are difficult to quantify, opening perspectives of improvement of knowledge;  11 operations that can serve as example have been identifies and lead to dedicated fact sheets to each of them, available on line https://www.ademe.fr/reconversion-friches-polluees-servicerenouvellement-urbain-enseignements-technico-economiques. Recommendations are proposed and integrated into the new ADEME call for projects “remediation for brownfield redevelopment” 2019 available online https://appelsaprojets.ademe.fr/aap/FRICHES2019-9.
为城市更新而改造受污染的荒地:技术和经济教训
自2010年以来,法国环境与能源管理署(ADEME)通过支持棕地重建以创建住房、经济活动和公共设备,为城市更新做出了贡献。因此,ADEME在2010-2016年期间资助了102个项目。在修复和土地管理方面,我们可以从这些行动中取得哪些技术和经济成果?这些项目对当地有什么影响?能否对土地管理行为者得出有用的结论?ADEME在2018年进行的审查旨在回答这些问题。·审查的重点是一个由95个案例组成的小组,代表492公顷的棕地,其中90个得到了修复,修复成本为2.17亿欧元(其中3800万欧元由ADEME资助)。该面板上的再开发项目旨在建设280万平方米的建筑面积,以及23000套住房(其中38%为社会住房)。58%为土地管理业务,37%为房地产业务,5%为公共设备建设业务;土地经营的技术经济特征与房地产经营的技术经济特征有明显区别;·修复成本在运营的经济平衡中占有重要地位;·投资进行修复前期研究,有助于控制修复工程风险;环境友好型修复技术(现场或原地)随着时间的推移而发展;棕地再开发的影响(收益和外部性)难以量化,这为知识的改进开辟了前景;·已确定可作为示例的11种操作,并为每种操作提供专门的情况说明书,可在线https://www.ademe.fr/reconversion-friches-polluees-servicerenouvellement-urbain-enseignements-technico-economiques获取。提出建议并将其纳入ADEME新呼吁的2019年“棕地重建整治”项目中,可在线查阅https://appelsaprojets.ademe.fr/aap/FRICHES2019-9。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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