The effect of veiling luminance on the disability glare of car headlamps designed in Iran

Mehri, Ahmad; Sajedifar, Javad; Abbasi, Milad; Tajbakhsh, Mohammad Ali

doi:10.1080/10803548.2021.1898829

Cited by 5 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Road transport has an important impact on the implementation of the sustainable development plan of countries, and therefore much attention should be paid to road safety [ 1 ]. Traffic accident injuries are a major global public health concern [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Quantitative indicators of street lighting with mood, fatigue, mental workload and sleepiness in car drivers: Using generalized structural equation modeling

Madvari

Sefidkar

Halvani

et al. 2023

Heliyon

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…Reduced visibility at night is one of the most important causes of driving accidents at night [ 1 ]. Also, psycho-physiological conditions that are influenced by various factors are important [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Quantitative indicators of street lighting with mood, fatigue, mental workload and sleepiness in car drivers: Using generalized structural equation modeling

Madvari

Sefidkar

Halvani

et al. 2023

Heliyon

View full text Add to dashboard Cite

“…This has resulted in a huge social cost, with economic losses estimated to even reach 3% of the world's GDP [7]. The risk of fatalities from traffic crashes at night is 3-4 times higher than that in the day, and 67% of all traffic crashes occur between 6 and 10 p.m. [8,9]. The improvement and maintenance of traffic signs can reduce the incidence of night traffic accidents by 50% and reduce the number of fatalities in nighttime accidents by about 28% [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance Characterization of an Active Luminous Coating for Asphalt Pavement Marking

et al. 2023

View full text Add to dashboard Cite

For improving the night recognition of road markings and enhancing the driving safety of asphalt pavements, single-factor optimization is used to investigate the effects of the component materials, including luminescent power, pigment, filler, and anti-sedimentation agent, on the luminous performance of a coating. Additionally, their composition ratios are optimized using response surface methodology. A phosphorescent marking coating is prepared to investigate the micromorphology, excitation, and emission properties using scanning electron microscopy (SEM) and molecular fluorescence spectroscopy (MFS). The optimum thickness of the coating on an asphalt pavement is investigated, and the durability of the coating on asphalt pavement using a wheel rutting test is evaluated. The results show that the 300 mesh yellow-green luminous powder has the optimal overall performance, with an initial luminescence that exceeds that of orange and sky blue by three times. Initial brightness is mainly influenced by aluminate luminescent powder (ALP), which increases with the dosage. ALP and fumed silica powder (FSP) have a positive effect on brightness after centrifugation, and the effect of FSP dosage is more significant. ALP, rutile titanium dioxide powder (RTDP), and FSP influence the wear value of the coating, and the magnitude of the effect is RTDP > FSP > ALP. The optimal dosages of the main component are 27% ALP, 5% RTDP, and 0.8% FSP. The results of SEM show that the components in the coating are evenly dispersed, and the surface of the coating is rough. The peak excitation wavelength of 420 nm means that the coating has the best excitation effect in UV light, and its emission spectrum in the 440–760 nm wavelength range is well within the sensitive recognition zone of the human eye. The initial brightness gradually reached 4.38 cd/m2 when the coating thickness was increased from 482 μm to 546 μm, and the optimal application thickness of the luminous coating was determined to be 500 μm. At high and normal temperatures, the rutting stripping rates of the luminous marking coating are 16.8% and 8.2%, indicating its satisfactory durability. This study provides an experimental basis for the ratio optimization design of a luminous coating for asphalt pavements.

show abstract

“…Some researchers did not see the above correlations in their analyses, indicating a lack of effect after the use of lighting [25][26][27] or even a back-to-back effect [28][29][30], a well-lit road with the entire road lane area may cause a decrease in driver attentiveness or have the effect of increasing the average speed of vehicles [31][32][33]. The impact of potential driver glare on safety is also an important issue [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Construction of a Measurement System with GPS RTK for Operational Control of Street Lighting

2022

View full text Add to dashboard Cite

Street lighting should realise normative illuminance levels throughout the roadway. The determination of the illuminance level of a road requires the use of a measurement technique based on classic point measurements at a specific grid of measurement points. Classical stationary measurements using the method indicated in the prescriptive requirements are time-consuming and labor-intensive. The authors of the article have presented a concept of a measurement system that could be used to partially automate road lighting measurements and increase their universality. The proposed measurement system uses the simultaneous measurement of illuminance values from lux meters located on the roof of the vehicle. The measurement is carried out while the vehicle is driving on a lit road, and the illuminance values are localized using a global GPS satellite location system equipped with RTK corrections. The use of GPS RTK localization data corrections allowed the measurement results to be unambiguously assigned to post-measurement fields. On the basis of the collected measurement data, with the use of terrain maps, it is possible to determine in detail the illuminance parameters on the surveyed road sections. The paper presents the construction of a measurement system for the mobile measurement of street lighting intensity using a GPS RTK receiver, along with verification of its correct operation. The correctness of the system’s operation was confirmed on the basis of the Measurement System Analysis (MSA) method. The calculations performed confirmed an R&R result of 11.14%. The proposed solution allows data on the lighting parameters of the surveyed road section to be obtained in a quick and repeatable manner. As a result, it is possible to make a quick assessment of the street lighting condition of the entire road section. The proposed system has been verified under field conditions and the repeatability of the results obtained has been confirmed.

show abstract

The effect of veiling luminance on the disability glare of car headlamps designed in Iran

Cited by 5 publications

References 42 publications

Quantitative indicators of street lighting with mood, fatigue, mental workload and sleepiness in car drivers: Using generalized structural equation modeling

Quantitative indicators of street lighting with mood, fatigue, mental workload and sleepiness in car drivers: Using generalized structural equation modeling

Preparation and Performance Characterization of an Active Luminous Coating for Asphalt Pavement Marking

Construction of a Measurement System with GPS RTK for Operational Control of Street Lighting

Contact Info

Product

Resources

About