Evaluation and Improvement of Lighting Efficiency in Working Spaces

Castillo-Martinez, Ana; Merodio, José Amelio Medina; Gutierrez-Martinez, Jose-Maria; Aguado-Delgado, Juan; Heredero, Carmen de Pablos; Otón, Salvador

doi:10.3390/su10041110

Cited by 12 publications

(10 citation statements)

References 21 publications

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“…One possible explanation for this finding could be that wide shoulders may provide additional space for the driver, decreasing the probability of severe crashes. In addition, several studies have found partially similar results, that shoulder width is negatively associated with injury severity [20,42,45]. In dark conditions, the probability of major injury crashes decreases on dry surfaces.…”

Section: Roadway Characteristicsmentioning

confidence: 64%

Analysis of Crash Severity of Texas Two Lane Rural Roads Using Solar Altitude Angle Based Lighting Condition

et al. 2022

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Many studies have examined the impact of factors affecting accident severity in rural areas; however, little attention has been paid to different lighting conditions (LCs), and less to the detailed categories and precise determining of twilight. In this paper, solar altitude angle (SAA), as a basis for differentiating and categorizing LCs, is proposed to investigate explanatory variables in much greater detail. For each LC, namely, dark, twilight, dark lit (dark with street lights) and daylight, separate random parameter models are developed to investigate the impacts of some factors on crash injury severity data of 2017 and 2018 in two lane rural roads of Texas. The model estimation results indicated that different LCs have various contributing factors, indeed, to each injury severity, further stressing the significance of investigating crashes based on SAA. The key differences include crash location, marked lane, grade direction, no passing zone, shoulder width, weekday and collision type. The important findings were that developing artificial lighting at intersections and LED raised pavement markers on two lane rural roads could lead to enhanced road safety under dark LCs. Furthermore, increasing shoulder width in straight segments of two lane rural roads is important for decreasing severe injury in daylight conditions.

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Section: Roadway Characteristicsmentioning

confidence: 64%

Analysis of Crash Severity of Texas Two Lane Rural Roads Using Solar Altitude Angle Based Lighting Condition

et al. 2022

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“…Some researchers advocated the integrated lighting control with occupancy sensors, photocells, and central control module for users' convenience and better experience [23]. A few researchers developed mobile applications for better user experience in terms of operability and mobility [18,30,31,36]. Evidence indicated that a well-designed mobile application can not only improve user experience, but also guarantee the compliance of illumination regulations and reduce energy consumption [36].…”

Section: Related Workmentioning

confidence: 99%

“…A few researchers developed mobile applications for better user experience in terms of operability and mobility [18,30,31,36]. Evidence indicated that a well-designed mobile application can not only improve user experience, but also guarantee the compliance of illumination regulations and reduce energy consumption [36]. In other studies, both illuminance and CCT were considered for improving users' visual comfort and wellbeing by adapting lighting environment to users' activity [26,32].…”

Section: Related Workmentioning

confidence: 99%

Development and Implementation of a Self-Optimizable Smart Lighting System Based on Learning Context in Classroom

Sun

Zhang²,

Cao

2020

IJERPH

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Illumination is one of the most important environmental factors in the classroom. Researchers have discovered that lighting settings have significant impact on students’ performance. Although light-emitting diode (LED) lighting systems can precisely control brightness level and correlated color temperature (CCT), existing designs of LED lighting control systems for classrooms are focused on energy-saving but lack context-based illumination control ability. In this study, a smart lighting system with continuous evolution capability was developed. It can adjust brightness, CCT, and illuminance distribution dynamically according to specific learning context. This system allows not only manual control, but also automatic switching of scenes by integrating with school schedules. Based on existing knowledge about lighting preference, 10 lighting modes confined in the comfortable zone of Kruithof curve were proposed for various classroom scenarios. Moreover, a classroom environmental data-processing framework for collecting and analyzing learning context, illumination settings, environmental data, and students’ performance data was introduced. This framework can help researchers explore the correlation between student performance and environmental parameters.

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“…Intelligent lighting systems have been applied in the daily life of firms and workplaces [1]. It has become more prevalent to provide appropriate lighting system while minimizing the energy of the environment.…”

Section: Introductionmentioning

confidence: 99%

Distributed Intelligent Lighting System by Performing New Model for Illuminance and Color Temperature in the Workplace

Hajjaj¹,

Miki²

2019

ICA

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A new approach has been proposed to improve the performance of the intelligent lighting system by estimating personal illuminance and desired color temperature at the workplace. We are considering the problem of using the sensing devices manually for the intelligent lighting system. The lighting control system has not become useful without sensing devices to measure the provided illuminance and color temperature. In this paper, we have used the property of light for the color temperature to estimate the level of color temperature for each user at the workplace. The new method will give personal illuminance for each user at the workplace and decrease the power consumption of the environment as well. As a result, the proposed method of the intelligent lighting system has realized the target of illuminance and color temperature for each user at the workplace by adapting dimming levels using illuminance sensing information for each user. Thus, the energy of the workplace has reduced by using a distributed luminance to realize the target for each user.

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Evaluation and Improvement of Lighting Efficiency in Working Spaces

Cited by 12 publications

References 21 publications

Analysis of Crash Severity of Texas Two Lane Rural Roads Using Solar Altitude Angle Based Lighting Condition

Analysis of Crash Severity of Texas Two Lane Rural Roads Using Solar Altitude Angle Based Lighting Condition

Development and Implementation of a Self-Optimizable Smart Lighting System Based on Learning Context in Classroom

Distributed Intelligent Lighting System by Performing New Model for Illuminance and Color Temperature in the Workplace

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