Abstract
The impact of led luminaries on road lighting has modified traditional design patterns. The technological change proposes an installation with a higher prime cost and less energy consumption. On the one hand, the price ratio between led luminary and traditional luminary is at least 3:1. On the other, the led better energetic efficiency could allow keeping proper illumination levels with less installed power. In this frame, since mid 2013, the road concessionaires of highways which constitute the Access Network to Buenos Aires city (Argentina), together with Urban Highways of the mentioned city, began a restructuring process of their lighting systems to led technology. Framed in a review of efficiency concepts and energetic classification for road lighting installations, the work presents the main results of the previous evaluation tests and of the reconverted installations, which can be considered as the first led applications at large scale on road lighting of the region.
Highlights
The Network of Access to Buenos Aires city (Argentina) consists of four road concessionaries: Acceso Norte, with two main forks, Acceso Oeste, Ezeiza Cañuelas Highway as southern access, and Buenos Aires-La Plata highway which links the national capital with the provincial one
The assembly involves around 400 km of highways whose lighting systems are at several stages of reconversion
Normalized Power in Argentinean Highways. It is shown the normalized powers obtained from luminance evaluations in urban highways or those of access to Buenos Aires city (Argentina), already cited
Summary
The Network of Access to Buenos Aires city (Argentina) consists of four road concessionaries: Acceso Norte, with two main forks, Acceso Oeste, Ezeiza Cañuelas Highway as southern access, and Buenos Aires-La Plata highway which links the national capital with the provincial one. The change process was guided by fieldwork lighting studies and laboratory tests carried out by LAL, Official Laboratory from Buenos Aires province The former were based on standardized luminance measurements (IRAM, 2009), performed on “control zones”. The luminaries were replaced by those to be evaluated, on four or eight consecutive columns, adopting the spacing between the two central columns as “evaluation area” These tests, which began in 2011, together with the initial evaluations of the installations already reconverted (2014-2015), form the performance database of led luminaries in highways used in the present work and it was completed with the photometric studies performed to the luminaries
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