Critical analysis of the energy performance indicators for road lighting systems in historical towns of central Italy

Leccese, Francesco; Salvadori, Giacomo; Rocca, Michele

doi:10.1016/j.energy.2017.07.093

Cited by 33 publications

(36 citation statements)

References 18 publications

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“…It is necessary to incorporate eco-design both to reduce the amount of material used and to achieve a greater location of the components that avoid the important impacts of transport. Eco-design is an environmental benefit that has an economic benefit since most of the improvements refer to the decrease in material [10,57,63]. It is important to consider that the results of the analyzes may be affected by the place where the study is carried out, which mainly affects the impacts caused by the greater or lesser transport of the components in the manufacturing phase.…”

Section: Discussionmentioning

confidence: 99%

“…Many cities replace the luminaires of public roads with others with LED technology or induction that reduce such impacts. Similar studies advise the use of indicators as efficient criteria for the selection of exterior lighting with low environmental impact [10]. For this reason, special attention should be paid to the design of new street lighting systems and to the refurbishment of existing ones, since many of them are inadequate.…”

Section: Introductionmentioning

confidence: 99%

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LCA Case Study to LED Outdoor Luminaries as a Circular Economy Solution to Local Scale

et al. 2019

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The replacement of luminaires with discharge lamps with high luminous efficacy and long life-time LED based equipment is a reality worldwide promoted by policies that favor their gradual substitution. There is a great concern in this manufacturing industry to develop new luminaires with low environmental impact during the manufacturing and transportation processes and its end-of-life disposal (reducing greenhouse gas emissions, toxic or hazardous components, …). Life cycle assessment (LCA) is a very extended tool used to provide information on the quality and quantity of environmental impacts in the life cycle phases of any product, system, or service. This article includes all phases of the LCA analysis of a selected streetlight LED luminaire manufactured by a SME where a landfill deposit is the end-of-life scenario. In a second phase, alternatives are sought for the reuse of the most significant elements that improve its local economy. The results are classified and sorted according to the ISO 14040 standard.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

LCA Case Study to LED Outdoor Luminaries as a Circular Economy Solution to Local Scale

et al. 2019

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“…At the design status (Scenario 2), an increase of the R 2 values in the correlations has been observed. The chosen design options, following the step-by-step methodology proposed in recent researches by the authors [11,59,60], guarantee that the lighting parameters are adjusted on the real traffic conditions. Therefore, with road lighting systems that are well-designed in more trafficked and central roads with more restrictive lighting requirements are expected higher illuminance levels than peripheral and less trafficked roads.…”

Section: Discussionmentioning

confidence: 99%

“…A well-designed lighting system is planned on the basis of the minimum lighting requirements. Such requirements for roads, established by in force regulations or recommended by specific guidelines, are given as a function of lighting classes, whose selection procedure is mainly based on the intensity of traffic volumes [11]. Therefore, the knowledge of traffic volumes within an urban context is important for the respect of the minimum lighting requirements, to avoid oversized lighting systems and electricity waste.…”

Section: Introductionmentioning

confidence: 99%

Space Syntax Analysis Applied to Urban Street Lighting: Relations between Spatial Properties and Lighting Levels

et al. 2019

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According to the international technical standards, higher lighting levels (luminance and illuminance levels) are expected in trafficked and central roads (where restrictive minimum lighting requirements are necessary) and lower lighting levels are expected in peripheral and less trafficked roads. Starting from this assumption, in this paper, the authors analyse the correlations between spatial properties (expressed by spatial indicators, for example, the integration index and the choice index) and lighting levels (expressed by lighting parameters, for example luminance and illuminance) upon roads of an urban context. The analysis has been applied to the case study of the medium sized town of Pontedera (central Italy). From the obtained results, it has been possible to observe how the correlations between integration index and luminance and illuminance values are significant in the case of roads equipped with lighting systems able to satisfy the lighting requirements established by the regulations. The presence of the discussed correlations lays the foundation for a change in the lighting design approach on urban scale, being able to set lighting requirements on the basis of space syntax results without the use of traditional methods of road classifications involving traffic volume estimations.

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“…Lighting can enable better vision and thus improve people's visual comfort [10,11]. Usually, public lighting services have relevant costs; electricity consumption for urban lighting is often a significant component in the financial budgets of public administrations, not to mention light pollution phenomena and the environmental costs to produce the electricity consumed by the lighting systems [12][13][14][15][16]. Public lighting services represent 3% of the worldwide electricity consumption [17].…”

Section: Introductionmentioning

confidence: 99%

On the Applicability of the Space Syntax Methodology for the Determination of Street Lighting Classes

et al. 2020

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Street lighting plays a crucial role in a city’s night landscape and in urban traffic management, influencing users’ comfort and safety. To contain costs of public street lighting systems and to avoid energy waste, illuminance levels on road surfaces must be adequate to fit actual traffic volumes, as prescribed by regulations. This is true not only for motorized roads but also for sidewalks, paths, and pedestrian areas. Regulations in force establish a relationship between road traffic volumes and minimum illuminance levels through the lighting classes selection procedure. Lighting classes selection is based on various para meters among which traffic volume is the most difficult to evaluate because traffic volumes are generally estimated or measured by a traffic observation campaign. In this paper, an alternative method for classes association which is based on a space syntax approach, is described. The method was applied to the case study town of Pontedera (Italy) for the analysis of the pedestrian and motorized traffic and it shows a good correlation between measured and estimated traffic volumes, demonstrating how the methodology, with a precise and quick estimation of traffic volumes, can help lead to a suitable design of the lighting infrastructure, aiming to reduce energy waste and to avoid oversized lighting systems.

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Critical analysis of the energy performance indicators for road lighting systems in historical towns of central Italy

Cited by 33 publications

References 18 publications

LCA Case Study to LED Outdoor Luminaries as a Circular Economy Solution to Local Scale

LCA Case Study to LED Outdoor Luminaries as a Circular Economy Solution to Local Scale

Space Syntax Analysis Applied to Urban Street Lighting: Relations between Spatial Properties and Lighting Levels

On the Applicability of the Space Syntax Methodology for the Determination of Street Lighting Classes

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