The urban lighting in the rehabilitation of the minor historical centre. The design scenarios for the architectural valorisation and the energy efficiency improvement of the urban environment

Pierluigi De Berardinis, Chiara Marchionni, Luisa Capannolo

Abstract

In the last decades, the topic of lighting of the historical minor centres is taking a prominent role in the cultural debate on the urban recovery interventions, because of the development of a greater awareness of the regenerative potential role that a careful planning system of urban lighting can take in this context.

The latter, which had a purely functional role in the past, has recently taken a figurative and emotional role, associated with the vision of the urban light scene during the night and its valorization.

The study of light, therefore, has inevitably turned into an instrument of knowledge and critical interpretation of the urban spaces, aimed both to functional recovery of the lighting network technology, and the regeneration of the urban image and its night scenes.

The needs that this sector should satisfy are multiple and, sometimes, conflicting: the need for road safety, the reduction of light pollution, the need for energy and cost savings.

The research aims to define an operative methodology to deal with the light planning in complex contexts as the minor historical centers, in which the concept of transformation of the urban scene clashes directly with the concept of preserving the identity features of the places and its constructive values and materials.

Among the goals, there is therefore the aim of highlighting the main gaps in the network, due both to plant engineering reasons and to the obsolescence of the existing lighting fixtures.

We operatively work in the urban voids system field, as spaces that characterize the urban scene. Through the knowledge of their dominant features it is possible to preserve their identity and, at the same time, enhance their singularity, with a suitable lighting project, which requires the study of materials, colors and consumption.

The purpose is to promote an urban development, able to produce positive economic, social and cultural effects, oriented to improve the quality of life, as well as to value the architectural and environmental heritage giving importance to energy and economic saving.


Keywords

Urban lighting; Minor historical centres; Night scenes regeneration; Compatibility

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Universitat Politècnica de València

e-ISSN: 2444-9091 http://dx.doi.org/10.4995/vitruvio