Life cycle assessment of road lighting luminaires – Comparison of light-emitting diode and high-pressure sodium technologies

2015 ◽  
Vol 93 ◽  
pp. 234-242 ◽  
Author(s):  
Leena Tähkämö ◽  
Liisa Halonen
Keyword(s):  
High Pressure ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Road Lighting

scholarly journals Comparative Life Cycle Assessment of Lighting Systems and Road Pavements in an Italian Twin-Tube Road Tunnel

2018 ◽  
Vol 10 (11) ◽  
pp. 4165 ◽  
Author(s):  
Giuseppe Cantisani ◽  
Paola Di Mascio ◽  
Laura Moretti
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Light Emitting Diode ◽  
Road Construction ◽  
Road Tunnel ◽  
Light Emitting ◽  
Pavement Materials ◽  
Environmental Consequences ◽  
Lighting Systems ◽  
Reflecting Surface

This work calculates and discusses the Life Cycle Assessment (LCA) of four scenarios composed of two types of road pavements and two types of lighting systems to be built in an Italian twin-tube road tunnel. A 20-year time horizon is adopted to assess the burdens of construction and maintenance of both flexible and rigid pavements and high-pressure sodium (HPS) and light-emitting diode (LED) lamps, traffic, and switching on of lamps. All considered scenarios are comparable with each other in terms of technical performances, but significantly differ regarding their environmental consequences. The geometrical and technical characteristics of the examined scenarios comply with current Italian standards for highways. In all the examined cases, LCA is carried out according to the European standard, EN 15804, and includes 19 impact categories (IC). The analysis demonstrates that the use of more reflecting surface pavement materials (i.e., concrete vs. asphalt) and more performing lighting systems (i.e., LED vs. HPS) can effectively mitigate the deleterious burdens related to road construction, maintenance, and use. For most of the examined ICs, the most environment-friendly scenario has LED lamps and concrete pavement.

Life cycle assessment of light-emitting diode downlight luminaire—a case study

2013 ◽  
Vol 18 (5) ◽  
pp. 1009-1018 ◽  
Author(s):  
Leena Tähkämö ◽  
Manuel Bazzana ◽  
Pierre Ravel ◽  
Francis Grannec ◽  
Christophe Martinsons ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Light Emitting Diode ◽  
Light Emitting

scholarly journals Life Cycle Assessment of Incandescent, Fluorescent, Compact Fluorescent and Light Emitting Diode Lamps in an Indian Scenario

Procedia CIRP ◽  
2014 ◽  
Vol 15 ◽  
pp. 467-472 ◽  
Author(s):  
Kuldip Singh Sangwan ◽  
Vikrant Bhakar ◽  
Shilpa Naik ◽  
Sylvi Nazareth Andrat
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Indian Scenario

Silicon-based light emitting diode material studied under high pressure

2004 ◽  
Vol 241 (14) ◽  
pp. 3387-3390 ◽  
Author(s):  
A. D. Prins ◽  
Y. Ishibashi ◽  
S. Sasahara ◽  
J. Nakahara ◽  
M. A. Lourenco ◽  
...  
Keyword(s):  
High Pressure ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Silicon Based

scholarly journals Analysis of Electric Power Quantities of Road LED Luminaires under Sinusoidal and Non-Sinusoidal Conditions

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1109
Author(s):  
Roman Sikora ◽  
Przemysław Markiewicz
Keyword(s):  
Supply Voltage ◽  
Light Emitting Diode ◽  
Luminous Flux ◽  
Laboratory Measurements ◽  
Electrical Parameters ◽  
Light Emitting ◽  
Road Lighting ◽  
Legal Provisions ◽  
Acceptable Range ◽  
Deformation Level

The paper presents the results of laboratory tests concerning the measurements of electrical parameters of road lighting luminaires. These measurements were focused on determining the dependence of the electrical parameters of the luminaires versus the changes of the RMS (Root Mean Square) value of the supply voltage and the level of disturbances in the supply voltage. The basic electrical parameters for light-emitting diode (LED) luminaires were analysed with the option of luminous flux adjustment if it existed. During the laboratory measurements, the luminaires were powered from the Agilent 6834B distorted voltage generator within the assumed acceptable range of the changes in the deformation level resulting from the applicable legal provisions for the reproduction of actual power supply conditions.

scholarly journals Can light emitting diode-based road studs improve vehicle control in curves at night? A driving simulator study

2016 ◽  
Vol 50 (2) ◽  
pp. 266-281 ◽  
Author(s):  
A Shahar ◽  
R Brémond ◽  
C Villa
Keyword(s):  
Driving Simulator ◽  
Light Emitting Diode ◽  
Lateral Position ◽  
Vehicle Control ◽  
Night Time ◽  
Light Emitting ◽  
Road Lighting ◽  
Country Road ◽  
Simulator Study ◽  
Subjective Level

Road delineation treatments enhance the ability of drivers to control their vehicle safely on winding roads. A simulator experiment compared night-time driving on a country road under three conditions: on an unlit road, on a road illuminated on curves by typical road luminaires, and on a road with an active lane delineation application, where self-luminous road studs are turned on to outline the lane and road edges as the driver approaches and passes the curves. The unlit condition induces greater lateral position variability and longer crossovers relative to the studs condition, demonstrating better lateral vehicle control in the latter. The luminaires condition induce greater lateral position variability in left curves, and longer crossovers in right curves, relative to the studs condition, which also demonstrates a better lateral vehicle control in the studs condition. At a subjective level, the participants perceived both the studs condition and the luminaires condition as safer, more comfortable and allowing better control than the unlit road. It was concluded that the tested application enhanced the ability of drivers to control the virtual car, as compared to an unlit road or road lighting.

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