A solar optical reflection lighting system for threshold zone of short tunnels: Theory and practice

Yu, Shanchuan; Shi, Lingna; Zhang, Long; Liu, Zhenyi; Tu, Yun

doi:10.1016/j.tust.2022.104839

Cited by 13 publications

(8 citation statements)

References 39 publications

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“…In the process of managing the operation of highway tunnels, traffic and environmental conditions are the focus of attention for managers. The spatiotemporal variation of traffic volume and composition, as well as vehicle speed, can determine whether there are traffic safety hazards in the tunnel and whether the luminaires meet the requirements of traffic safety [26][27][28]. This paper selects data from ventilation, lighting, and traffic detection sensors for analysis.…”

Section: Characteristic Analysis Of Highway Tunnel Operation Datamentioning

confidence: 99%

Application of a digital twin for highway tunnels based on multi-sensor and information fusion

Yang,

Yu,

Wang

et al. 2024

Front. Phys.

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Due to the harsh environment of highway tunnels and frequent breakdowns of various detection sensors and surveillance devices, the operational management of highway tunnels lacks effective data support. This paper analyzes the characteristics of operational surveillance data in highway tunnels. It proposes a multimodal information fusion method based on CNN–LSTM–attention and designs and develops a digital twin for highway tunnel operations. The system addresses issues such as insufficient development and coordination of the technical architecture of operation control systems, weak information service capabilities, and insufficient data application capabilities. The system also lacks intelligent decision-making and control capabilities. The developed system achieves closed-loop management of “accurate perception–risk assessment–decision warning–emergency management” for highway tunnel operations based on data-driven approaches. The engineering demonstration application underscores the system’s capacity to enhance tunnel traffic safety, diminish tunnel management costs, and elevate tunnel driving comfort.

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Section: Characteristic Analysis Of Highway Tunnel Operation Datamentioning

confidence: 99%

Application of a digital twin for highway tunnels based on multi-sensor and information fusion

Yang,

Yu,

Wang

et al. 2024

Front. Phys.

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“…Te integration of autonomous driving technology in electric vehicles represents a signifcant leap forward in enhancing overall efciency and sustainability in the automotive industry. By combining the advancements in electric propulsion with autonomous capabilities, these vehicles ofer a seamless and intelligent transportation solution [4]. Autonomous electric vehicles (AEVs) have the potential to optimize energy consumption, improve trafc fow, and reduce environmental impact [5,6].…”

Section: Introductionmentioning

confidence: 99%

A Robust Regenerative-Braking Control of Induction Motors for EVs Applications

Youssef,

Hussien,

El-Wahab Hassan

2024

International Transactions on Electrical Energy Systems

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EVs suffer from short driving range because of limited capacity of the battery. An advantage of EVs over internal-combustion vehicles is the ability of regenerative braking (RB). By this advantage, EVs can develop energy by RB which can be stored in the battery for later use to increase the driving range of EVs. There are different motors that can be used in EVs, and the control during RB mode is dedicated for certain motor types. However, the previous studies for EV-based IM drives consider the motor-speed control without considering its RB. This paper proposes a robust control of induction motor (IM) during RB mode of EVs. The proposed control system is simple and depends only on mathematical calculations. The obtained results confirm the effectiveness and accuracy of the suggested control strategy with a good dynamic behavior under different operating conditions. Also, the results assure the robustness of control capabilities under parameters uncertainties during the RB mode of EV-based IM drives.

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“…Drivers’ behaviors are strongly influenced by lighting condition variations along serial tunnels, especially by the “black hole” and “white hole” effects near tunnel portals which frequently result in a crash risk [ 5 ]. To be specific, sharp lighting difference between the exterior and interior of the tunnel portal reduces the sight distance of the driver in the approaching vehicle, and then the driver experiences visual oscillation incurred by an abrupt lighting transition through the entrance and exit zones of the tunnel [ 6 , 7 ], as represented in Figure 1 . In addition, once the crash occurs, a secondary crash (SC) is highly likely to happen since drivers may not have immediate responses to the hazardous traffic turbulence [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Modelling and Mitigating Secondary Crash Risk for Serial Tunnels on Freeway via Lighting-Related Microscopic Traffic Model with Inter-Lane Dependency

Chen

Song

et al. 2023

IJERPH

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This paper models and mitigates the secondary crash (SC) risk for serial tunnels on the freeway which is incurred by traffic turbulence after primary crash (PC) occurrence and location-heterogeneous lighting conditions along serial tunnels. A traffic conflict approach is developed where SC risk is quantified using a surrogate safety measure based on the simulated vehicle trajectories after PC occurs from a lighting-related microscopic traffic model with inter-lane dependency. Numerical examples are presented to validate the model, illustrate SC risk pattern over time, and evaluate the countermeasures for SC, including adaptive tunnel lighting control (ATLC) and advanced speed and lane-changing guidance (ASLG) for connected vehicles (CVs). The results demonstrate that the tail of the stretching queue on the PC occurrence lane, the adjacent lane of the PC-incurred queue, and areas near tunnel portals are high-risk locations. In serial tunnels, creating a good lighting condition for drivers is more effective than advanced warnings in CVs to mitigate SC risk. Combined ATLC and ASLG is promising since ASLG informs CVs of an immediate response to traffic turbulence on the lane where PC occurs and ATLC alleviates SC risks on adjacent lanes via smoothing the lighting condition variations and reducing inter-lane dependency.

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A solar optical reflection lighting system for threshold zone of short tunnels: Theory and practice

Cited by 13 publications

References 39 publications

Application of a digital twin for highway tunnels based on multi-sensor and information fusion

Application of a digital twin for highway tunnels based on multi-sensor and information fusion

A Robust Regenerative-Braking Control of Induction Motors for EVs Applications

Modelling and Mitigating Secondary Crash Risk for Serial Tunnels on Freeway via Lighting-Related Microscopic Traffic Model with Inter-Lane Dependency

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