Safety effects of street lighting on roadway segments: Development of a crash modification function

Yang, Runan; Wang, Zhenyu; Lin, Pei-Sung; Li, Xiaopeng; Chen, Yu; Hsu, Ping P.; Henry, Alex

doi:10.1080/15389588.2019.1573317

Cited by 12 publications

(4 citation statements)

References 13 publications

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“…With respect to the topic of traffic accidents and crashes in relation to vehicle illumination, several works were reviewed [ 15 , 16 , 17 , 18 , 19 ]. In [ 15 ], the authors compared the development of fatal traffic accidents in the USA and observe the linear regression of such accidents with respect to multiple related factors, presenting a general conclusion and recommendation that advanced lighting of roads and proper shape, configuration and type of vehicle headlights be implemented to improve the visibility of pedestrians under dark conditions.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Yang et al investigated the relationship between lighting photometric measures and the risk of crashing into an obstacle in road traffic during under dark conditions on individual sections of roadways examined in the USA [ 17 ]. On the other hand, in 2010, research was conducted with the aim of determining whether there is an interconnection between vehicles deployed on US roads equipped with daytime running lights (DRL) and the occurrence of traffic accidents [ 18 ].…”

Section: Literature Reviewmentioning

confidence: 99%

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Research Regarding Different Types of Headlights on Selected Passenger Vehicles when Using Sensor-Related Equipment

Vrábel

Stopka

Paľo

et al. 2023

Sensors

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Statistical surveys show that the majority of traffic accidents occur due to low visibility, highlighting the need to delve into innovative car lighting technologies. A car driver must not only be able to see but also to be seen. The issue of headlight illumination is vital, especially during the dark hours of the night. Therefore, the focus of this article is determining the range of visibility of dipped (low-beam) headlights under specific experimental conditions. We also designed a methodical guideline aimed at identifying the distance at which dipped headlights illuminate the road while a vehicle is in motion. Research conducted on various classes of road confirmed that the Hyundai i40 is best used on higher-class roads, while the Dacia Sandero is better used on lower-class roads due to the shape and spreading out of its light cone. Furthermore, the pros and cons of the distribution of light cones on several classes of road are presented. Sensor-related equipment was also used to investigate light beam afterglow. In particular, an LX-1108 light meter was applied to determine the obstacle illumination intensity, the properties of which enable recording of low lighting values, and a DJI Mavic AIR 2 unmanned aerial vehicle (UAV; drone) was utilized to record the data related to the location of the examined vehicle, as well as light afterglow at night; relevant data evaluation was carried out using Inkscape software.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Research Regarding Different Types of Headlights on Selected Passenger Vehicles when Using Sensor-Related Equipment

Vrábel

Stopka

Paľo

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…Increases pedestrian safety through visibility and perception of being seen (Boyce et al, 2000;Haans and de Kort, 2012;Krenichyn, 2006;Nasar and Jones, 1997;Yang et al, 2019) Major roads and trucking routes b…”

Section: Ms Smallmentioning

confidence: 99%

Creation of a rough runnability index using an affordance-based framework

Shashank¹,

Schuurman

Copley³

et al. 2021

Environment and Planning B: Urban Analytics and City Science

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Running is one of the most popular forms of physical activity. To date, no literature explores association between the features of the built environment and running. A limited amount of literature uses walkability as a proxy for runnability, thereby misjudging the differing goals of walking and running: leisure, sport or commute. We create a rough runnability index using an affordance-based framework as a conceptual and methodological attempt to quantify features of the built environment that facilitate or hinder running as a form of leisure or sport activity. Three indices are created in the City of Surrey, British Columbia, Canada using pixelated edges. We find that areas in the downtown core and near high traffic routes show low safety and general runnability, whereas areas near parks and in low traffic, residential areas show higher safety for runners. Representing runnability using pixelated edges allows for sub-block level analysis of runnability as experienced by runners.

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“…For motorists, it is important to correctly identify and view vulnerable road users and objects on the road to avoid collisions and to reduce the severity of collisions by reducing vehicle speed prior to the crash. Studies of post hoc crash data combined with photometric measurements reveal a correlation between road lighting uniformity and the number of crashes [13,14]. However, a study in New Zealand showed that uniformity does not seem to be a significant explainable variable for vehicle crashes in urban areas but that other variables seem to be of higher relevance [15].…”

Section: Introductionmentioning

confidence: 98%

Simulations and Analysis of the Optimum Uniformity for Pedestrian Road Lighting Focusing on Energy Performance and Spill Light in the Roadside Environment

Bouroussis

Jägerbrand

2022

Energies

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Road lighting uniformity is an essential lighting quality parameter for motorists and pedestrians and varies with lighting design parameters. Increased road lighting uniformity may result in benefits, such as increased reassurance and perceived safety for pedestrians or an increased overall visual perception. However, no previous study has investigated how road lighting uniformity varies with lighting design scenarios or how the uniformity of various lighting design scenarios affects other essential parameters, such as energy performance and obtrusive light. This study aimed to investigate: (I) how uniformity varies with different road lighting design scenarios, and (II) how uniformity correlates with energy performance and risk for increasing spill light. The study is limited to pedestrian roads. We performed photometric calculations in ReluxDesktop for more than 1.5 million cases with single-sided pole arrangements and for various geometries of road width, pole distance, pole height, overhang, and luminaire tilt. The results were analyzed with a set of five relevant metrics that were calculated and analyzed together with uniformity. For the evaluation, we used the minimum luminaire power needed to achieve an average illuminance of 10 lx, the power density indicator (DP), edge illuminance ratio (REI), and we introduced two new indicators for spill light on the ground in the border areas: the extended edge illuminance ratio (extended REI) and the spill flux ratio (RSF). The results show that increased uniformity levels may significantly increase energy consumption and spill light, but that both these impacts can be relatively controlled if uniformity is kept under certain limits. The investigated cases also demonstrated that improper lighting planning significantly increases adverse effects, such as spill light.

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Safety effects of street lighting on roadway segments: Development of a crash modification function

Cited by 12 publications

References 13 publications

Research Regarding Different Types of Headlights on Selected Passenger Vehicles when Using Sensor-Related Equipment

Research Regarding Different Types of Headlights on Selected Passenger Vehicles when Using Sensor-Related Equipment

Creation of a rough runnability index using an affordance-based framework

Simulations and Analysis of the Optimum Uniformity for Pedestrian Road Lighting Focusing on Energy Performance and Spill Light in the Roadside Environment

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