Abstract
The economic development of a territory is strongly correlated to its level of infrastructure (railway, roads, etc.); the complexity of this type of works requires careful planning and design that cannot be separated from the assessment of the impacts generated on citizenship affected by the new infrastructures. This study deals with the instrument defined by the Liguria Region for the implementation of infrastructures through the instruments called “Programmi Regionali di Intervento Strategico—P.R.I.S.” (Regional Strategic Intervention Programs) established by the Regional Law n. 39/2007. The aim of the P.R.I.S. is to guarantee the social protection of citizens that reside (as owners or tenants) or carry out economic activities in real estate units incompatible with the construction of the infrastructure, according to the main Italian law (Presidential Decree n. 327/2001) about the expropriation of private real estate for the construction of public works. In particular, the construction of a new link of the A7-A10-A12 motorway sections near the city of Genoa (called “Gronda”) is considered. The new infrastructure involves the expropriation of about 100 residential units and the relocation of about 50 production activities; the related P.R.I.S. defines the conditions that allow social cohesion through the recognition of indemnities for the expropriation of the real estate properties and the compensation of other expenses that the residents have to pay for their relocation. The valuation of the indemnities is developed through a multi-parameter model applicable for the estimation of real estate units (residential and productive) at a large-scale (mass appraisal); it is derived from the Market Comparison Approach and considers the most meaningful real estate characteristics. The aim is to develop a mass appraisal estimation model applicable in an easy way on real estate units with different destinations use. The model can be applied for the estimation of ordinary and special indemnities to be recognized for owners and tenants affected by the expropriation of their real estate units for the construction of public projects.
Highlights
The planning and construction of public works and infrastructures—such as roads or railways—are characterized by complex legislative and procedural procedures, which often lead to uncertain times and results
The Regional Law n. 39/2007 recognizes to residents who live within the range of 30 to 60 m from the new infrastructure, a special indemnity equal to 40,000 € for the damage caused by temporary and permanent inconvenience
A careful check shows that the minimum value of Sampierdarena relates to a real estate unit in poor maintenance conditions, while the second relates to a real estate unit in excellent condition; both belong to the type of real estate unit located in multi-family buildings
Summary
The planning and construction of public works and infrastructures—such as roads or railways—are characterized by complex legislative and procedural procedures, which often lead to uncertain times and results. 39/2007, in which the “Regional Strategic Intervention Programs” (P.R.I.S.) are established With these programs, the Region—in agreement with the local public administrations and with the developers of the infrastructures—pursuing, at the same time, the requalification of the territorial contexts concerned and the social sustainability of the works, reducing the possible negative impacts on the local communities interested. The aspects involved in the social sustainability of the project are investigated; in particular the estimation of the economic compensation that the developer of the infrastructure must pay to the owners and tenants of real estate that are expropriated, through the adoption of a large-scale evaluation method (mass appraisal)
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