Results 151 to 160 of about 803,318 (230)

Analyses of the defects in highway tunnels in China

Tunnelling and Underground Space Technology, 2021
Abstract The number and length of highways in China far exceed those in other countries. Therefore, to better understand the defects that have occurred in Chinese highways that are currently in service, we collected data on the defects in 90 such tunnels. Using these data, we conducted a systematic study on the causes of such defects.
Fei Ye, Nan Qin, Xing Liang, Aohui Ouyang, Zhou Qin, Enjie Su   +5 more
openaire   +1 more source

Evaluating the effectiveness of rhythmic visual guidance technology for mitigating driving risks in highway tunnel groups: A simulation study.

Accident Analysis and Prevention
Driving in highway tunnel groups necessitates frequent adaptation to drastic changes in the traffic environment, thereby increasing driving difficulty and risk.
Haoran Zheng, Zhigang Du, Chengfeng Jia, Linna Zhu, Shiming He, Jialin Mei   +5 more
semanticscholar   +1 more source

Fully Solar-Powered Uninterrupted Highway Tunnel-Lighting System Enabled by Cement-Based Aqueous Ni-Zn Structural Batteries.

Small
Highway tunnel lighting working 24 h a day, 365 days a year largely enables traffic safety but consumes a large amount of electric energy. Moreover, these tunnel lighting installations are powered by lithium-based batteries, which rely on Li sources and ...
Jie Ding, Shulai Guo, Guoqi Han, Ying Liu, Zhenghui Pan, Zhengwu Jiang, Zhiguo Yan, Qing Chen, Hehua Zhu   +8 more
semanticscholar   +1 more source

Driving visual information in highway tunnel entrances: A computational method based on optical flow and color quantification

Traffic Injury Prevention
Objectives The environmental landscape of highway tunnel entrance zones is closely related to driving performance. To investigate the impact mechanism of environmental information volume on drivers’ visual workload in tunnel entrance zones, this study ...
Yunwei Meng, Lei Wang, Yin Zhang, Binbin Li, Zhongshuai Liu, Guangyan Qing, Fang Chen   +6 more
semanticscholar   +1 more source

Pseudolite-Based Lane-Level Vehicle Positioning in Highway Tunnel

IEEE transactions on intelligent transportation systems (Print)
In intelligent transportation system (ITS) applications, vehicles require robust and accurate positioning where global navigation satellite system signals are not available.
Xiye Guo, Kai Liu, Zhijun Meng, Xiaoyu Li, Jun Yang   +4 more
semanticscholar   +1 more source

Evaluation of traffic signs information volume at highway tunnel entrance zone based on the visual sample entropy of novice and experienced drivers

Traffic Injury Prevention
Objective Traffic signs play a crucial role in ensuring road traffic safety, particularly in high-risk driving zones like the entrance zone of highway tunnels.
Lei Han, Zhigang Du, Aojun Ma
semanticscholar   +1 more source

Carbon Monoxide Control in a High Highway Tunnel

Archives of Environmental Health: An International Journal, 1967
A 1.6-mile-long, 2-mile-high vehicular tunnel is planned for construction at Straight Creek, in the Rocky Mountains west of Denver. Both elevation and carbon monoxide in the tunnel will tax the oxygen-carrying capacity of blood of tunnel employees and individuals traveling through the tunnel. Based on present information, it is recommended that: carbon
J M, Miranda, V J, Konopinski, R I, Larsen   +2 more
openaire   +2 more sources

Highway tunnel detection system based on inspection UAV

International Conference on Internet of Things and Smart City
Highway tunnels are one of the important infrastructures in urban highway and play an important role in ensuring safe and smooth traffic flow. In order to keep the tunnel in good operating condition during the use of the tunnel, as well as to ensure the ...
Yang Shen
semanticscholar   +1 more source

Unraveling the impact of fog on driver behavior in highway tunnel entrances: A field experiment

Traffic Injury Prevention
Objectives This research aims to (1) study the visual and psychological characteristics of drivers in foggy tunnel entrances, (2) compare driver behavior inside and outside foggy tunnels, and (3) propose improvement ideas based on the study results ...
Shiming He, Zhigang Du, Lei Han, Wenyi Jiang, Fangtong Jiao, Aojun Ma   +5 more
semanticscholar   +1 more source

Intelligent control and energy saving evaluation of highway tunnel lighting: Based on three-dimensional simulation and long short-term memory optimization algorithm

, 2021
Traditional tunnel lighting luminance is calculated based on the designed hourly traffic volume and designed speed. This approach first determined the entrance section reduction factor and middle section’s luminance through the look-up table method, then
Jiandong Zhao, Yingzi Feng, Cai Yang
semanticscholar   +1 more source