Experimental study on obstacle visibility and driving safety in lighting environment of road tunnel interior zone

Feng, Shouzhong; Gao, Wei; Zhou, Long; Li, Jie; Mao, Weixing; Liu, Xianling

doi:10.1016/j.tust.2024.105641

Cited by 2 publications

(4 citation statements)

References 32 publications

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“…Fig. 4 Five Tunnel Zone [17], [23], [26] Air characteristics in the tunnel differ from those of ordinary roads. In the tunnel, the concentration of vehicle exhaust gas will be higher than on regular roads because the air exchange is slower than on ordinary roads.…”

Section: Introductionmentioning

confidence: 98%

“…In contrast to long tunnels, the driver cannot see the exit end of the tunnel. Tunnels that are less than 75 m long but whose paths are not straight so drivers cannot see the exit end of the tunnel are defined as long tunnels [9], [23].…”

Section: Introductionmentioning

confidence: 99%

“…In the long tunnel, acknowledging the difference in human visual adaptation speeds for light and dark transitions, five distinct lighting zones are implemented (refer to Fig. 4 below the paper) [17], [23], [26]:…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, to address the challenge of determining energy-efficient artificial lighting in the threshold zone, simulations are conducted to compare tunnel lamp types, aiming for maximum power savings. This research involves modeling toll road tunnel lighting using Dialux software, examining characteristics with both HPS and LED lamps using the Indonesian National Standard (SNI) and ANSI/IES Rp-22-11 as reference [1], [23]. The Dialux software is commonly used for tunnel lighting planning [30], [31].…”

Section: Introductionmentioning

confidence: 99%

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Modeling Night and Daylighting Toll Road Tunnel Using Dialux to Compare the Performance of HPS and LED Lamp

Setyaningsih,

Pragantha,

Candra

2024

Int. J. Adv. Sci. Eng. Inf. Technol.

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In toll road tunnels, the lighting at the threshold zone must balance the brightness of the access zone with natural light. Therefore, artificial lighting is strategically placed in that area to match the brightness to the intensity of natural light. This balance shifts during nighttime to ensure uniform brightness throughout the tunnel, equivalent to street lighting. Additionally, a significant amount of power is required to realize this artificial lighting. Two lamp technologies are used for tunnel lighting: HPS lamps with low energy efficiency and LED lamps with better energy efficiency. The challenge is determining artificial lighting in the threshold zone using energy-efficient lamps. To address this issue, simulations were conducted to compare the two lamp types applied in tunnels to achieve the most significant power savings. This research creates a model of toll road tunnel lighting using DIALux software better to understand the characteristics of toll road tunnel lighting using HPS and LED lamps. The SNI and ANSI/IES are the standards used. The Cisumdawu tunnel is used as the case study. The simulation results show that the luminance in the interior zone using LED or HPS lamps meets the SNI standard. Using LED lamps results in higher luminance with less power than using HPS. This discovery can improve energy efficiency in tunnel environments and contribute to lighting solutions for transportation infrastructure.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%