Tension structures: A way towards sustainable lighting in road tunnels

Gil‐Martín, Luisa María; Peña-García, Antonio; Hernández‐Montes, Enrique; Espín-Estrella, A.

doi:10.1016/j.tust.2010.09.003

Cited by 47 publications

(28 citation statements)

References 6 publications

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“…Figure 1 shows the modelled sun trajectory for an arbitrary tunnel. The modelled tunnel and the tension structure have been the same used for real measurements in previous works [3,4]. The tunnel is located in Granada.…”

Section: Methodsmentioning

confidence: 99%

“…Finally, we have simulated the tension structure in the gate of the road tunnel. As mentioned, it is also the same we used for the measurements in [3,4]. The simulation is shown in figure 3.…”

Section: Methodsmentioning

confidence: 99%

“…In previous works [3,4], we demonstrated that implementation of transparent tension structures in the portal of road tunnels could be a very effective an easy measure to use the sunlight during daytime, which is the most critical period of the day when dealing with tunnel lighting. Nevertheless, the advances above were carried out with very simple tension structures because the target was to prove whether they were reliable and profitable.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A computational method to optimize energy savings of tension structures set in road tunnels

Martin¹,

García²,

Escribano³

et al. 2024

RE&PQJ

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Abstract.After the successful introduction of transparent tension structures in the portal of road tunnels as an effective measure for energy savings, optimization of such savings has been sought. A computational method based on graphical design capable to simulate the optical properties of the sun, any transparent tension structure and any road tunnel whatever its orientation, has been developed and presented in this paper. A comparison with measurements in a real tension structure placed in the entrance portal of one real tunnel is performed and discussed.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A computational method to optimize energy savings of tension structures set in road tunnels

Martin¹,

García²,

Escribano³

et al. 2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

“…In recent years, research groups around the world have focused their efforts on the development of strategies to introduce natural light inside the tunnels [31][32][33], or to shift the threshold zone, which is the most consuming part, out of the tunnel, using a part of the sunlight, properly filtered and attenuated [34][35][36][37][38][39]. The most promising strategy in this last case is the use of pre-tunnel pergolas, whose construction before the portal gate can yield energy savings in the threshold zone of about 40% [35].…”

Section: Lighting Infrastructures: Use Of Sunlight In Road Tunnelsmentioning

confidence: 99%

Proposal to Foster Sustainability through Circular Economy-Based Engineering: A Profitable Chain from Waste Management to Tunnel Lighting

et al. 2017

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Abstract:The increasing demands of infrastructures in terms of energy consumption, raw material demand, greenhouse gas emissions, waste management, treatment of components after their lifetime period, and financial costs are nowadays a serious threat for sustainability. Given that the resources are limited, it is difficult to ensure an accurate level of well-being for future generations. For this reason, new perspectives in design, production and consumption are necessary. In this work, the principles of circular economy are applied to concrete branches of engineering. Departing from a design orientated to new uses after life period of infrastructures, a circular economy-aimed engineering makes possible the connection and mutual profit of such different branches like waste management and tunnel lighting. The benefits in environmental and financial terms are a strong argument in favor of a stronger link between engineering and circular economy.

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“…Currently, energy consumption of tunnel lighting is larger than half of tunnel total energy consumption [5,6]. Hence, research on tunnel lighting energy saving has received significant attention in the last few years [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

An Intelligent Luminance Control Method for Tunnel Lighting Based on Traffic Volume

Qin

Dong

et al. 2017

Sustainability

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This paper presents an intelligent control method for tunnel lighting based on traffic volume. The monitoring data for a period of 12 days of the Chibai tunnel (located in the Jilin province of China) under different weather conditions was selected as the case study. The data used in the analysis included traffic volume, vehicle speed, the time of light-emitting diodes (LEDs) operating at their lowest luminance level, and the average time interval between two consecutive vehicles. The traffic flow analysis indicated that the tunnel has a relatively heavy traffic volume in the daytime (7:00 a.m. to 6:00 p.m.) and a relatively low traffic volume in the nighttime (12:00 a.m. to 6:00 a.m. and 7:00 p.m. to 12:00 a.m.). Thus, we propose a tunnel lighting control method that distinguishes day and night operational strategies. In the daytime, the luminance of tunnel zones depends on tunnel exterior luminance, traffic volume and vehicle speed regardless of vehicle presence. In the night, the "vehicle in, light brightens; vehicle out, light darkens" control method is adopted for the tunnel luminance, which depends on vehicle presence.

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Tension structures: A way towards sustainable lighting in road tunnels

Cited by 47 publications

References 6 publications

A computational method to optimize energy savings of tension structures set in road tunnels

A computational method to optimize energy savings of tension structures set in road tunnels

Proposal to Foster Sustainability through Circular Economy-Based Engineering: A Profitable Chain from Waste Management to Tunnel Lighting

An Intelligent Luminance Control Method for Tunnel Lighting Based on Traffic Volume

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