Tajani Francesco, Morano Pierluigi, Di Liddo Felicia
Department of Architecture and Design, Sapienza University of Rome, Italy.
Department of Civil Engineering Sciences and Architecture, Polytechnic University of Bari, Italy.
Land use policy. 2020 Dec;99:105050. doi: 10.1016/j.landusepol.2020.105050. Epub 2020 Sep 2.
The present research concerns the procedures of concessions for the improvement and exploitation of public property assets. We propose a model that helps to define the optimal combination of novel uses in public properties. This model is an answer to the need for effective strategies to find new functions for disused buildings or abandoned areas. The model integrates the logic of the Discounted Cash-Flow Analysis (DCFA) and the goal programming for determining the new functions, to identify the macro-solution that maximizes the financial conveniences of the parties involved (Public Administration and private investor), in terms of monetary compensation for the Public Administration and return on investment for the private operator. The algorithm of the model has been applied to five existing public properties located in the city of Rome (Italy); for each property a specific procedure of concessions for the improvement of public assets can be activated and different eligible enhancement projects can be realized. The outputs generated by the optimization model are a valid decision support in all the phases of the concession procedure to identify the (public and private) strengths and weaknesses concerning the redevelopment initiatives on public properties. The effective re-use of these properties can actually help to prevent further soil consumption.
本研究关注公共财产资产改善与开发的特许权程序。我们提出了一个有助于确定公共财产新用途最佳组合的模型。该模型旨在满足为废弃建筑或闲置区域寻找新功能的有效策略需求。该模型整合了现金流折现分析（DCFA）的逻辑和用于确定新功能的目标规划，以确定能使相关各方（公共行政部门和私人投资者）在财务便利方面实现最大化的宏观解决方案，这对公共行政部门而言是货币补偿，对私人运营商而言是投资回报。该模型算法已应用于位于意大利罗马市的五处现有公共财产；对于每一处财产，都可启动特定的公共资产改善特许权程序，并可实现不同的合格增强项目。优化模型产生的输出结果在特许权程序的所有阶段都是有效的决策支持，可用于识别公共财产再开发举措（涉及公共和私人方面）的优势与劣势。这些财产的有效再利用实际上有助于防止进一步的土地消耗。
