REDESIGNING THE LIGHT IN THE HISTORICAL CENTRE OF ENNA

The lighting survey carried out on a portion of the historical centre of Enna revealed some critical issues that affect the liveability of this urban space. lnit ially , the posit ion , num ber , lamps and supports of the lighting systems on site were identified. Then, the horizontal illuminance was verified which, according to the type of urban area, must provide an average illuminance of 15 lux and a ratio between the minimum and average of 0.4. The verification was carried out with Dialux Evo 9.1 soft w are: the second of the two parameters was not verified, so an intervention was needed to improve the light conditions of the site during the night hours. The new lighting project consists of replacing and implementing the existing lighting syst ems, opting for new LED lamps with luminaires that direct the light beam dow nw ards . The objectives of this proposal are to pursue the psychophysical wellbeing of a mainly elderly users, mitigate light pollution and reduce energy consum pt ion. A final lighting engineering check on the new project and a calculation of the operating costs make it possible to propose an intervention that complies with regulatory parameters, improves the liveability of the urban area, and allows significant energy savings .