Scholarlink

This chapter delves into the illumination optimization methodology employed in India’s highest and longest road tunnel, the Rohtang Tunnel, now known as the Atal Tunnel, located in the Himalayan region of Himachal Pradesh. It is situated at an astounding altitude of 3100 feet and measures 8.8 km long, 13.5 m wide and 7.45 m high. The study focuses on the meticulous investigation to reduce the risk of accidents by identifying key parameters that enhance visibility, minimize glare, and ensure optimal contrast sensitivity. Notably, the study also addresses energy-efficient lighting for sustainable development, driving consumption associated with luminance levels in the tunnel at different locations, electronics, and wiring. As a result, the research introduces an innovative approach to streamlining lighting installations, particularly in augmenting luminous intensity at the tunnel’s entrance. To achieve these goals, the study leverages advanced lighting design software, specifically DIALux, a versatile tool extensively used for photometric analysis, building information modeling (BIM), and 3D modeling. The research aligns with the principles outlined in CIE 88–2004, emphasizing the critical importance of illuminating the tunnel’s threshold zone to minimize accidents. Three different simulation models are created based on the bilateral symmetrical lighting system and the transverse lighting system at the entrance and exit zones of the tunnel. Models 1, 2, and 3 show a negative correlation, which implies that the illuminance level decreases with an increase in distance from the tunnel entrance. The illumination level in the tunnel entrance section is highest (1161 lx at 2.5 m distance from the entrance) in Model 3, which implies that the black hole effect during daytime is minimal in the case of bilateral symmetry with transverse lighting arrangement. This chapter contributes valuable insights into the strategic optimization of tunnel illumination, which is vital for enhancing safety and cost-effectiveness in challenging and other high-altitude tunnel environments.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

High-Altitude Tunnel Illumination Optimization Using Simulation: Risk Management and Sustainable Development of Atal Tunnel in the Himalayas

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Siddhartha Agarwal,
  • Anuranjeet Ranjan,
  • Atul Singh,
  • Rajul Dwivedi

摘要

This chapter delves into the illumination optimization methodology employed in India’s highest and longest road tunnel, the Rohtang Tunnel, now known as the Atal Tunnel, located in the Himalayan region of Himachal Pradesh. It is situated at an astounding altitude of 3100 feet and measures 8.8 km long, 13.5 m wide and 7.45 m high. The study focuses on the meticulous investigation to reduce the risk of accidents by identifying key parameters that enhance visibility, minimize glare, and ensure optimal contrast sensitivity. Notably, the study also addresses energy-efficient lighting for sustainable development, driving consumption associated with luminance levels in the tunnel at different locations, electronics, and wiring. As a result, the research introduces an innovative approach to streamlining lighting installations, particularly in augmenting luminous intensity at the tunnel’s entrance. To achieve these goals, the study leverages advanced lighting design software, specifically DIALux, a versatile tool extensively used for photometric analysis, building information modeling (BIM), and 3D modeling. The research aligns with the principles outlined in CIE 88–2004, emphasizing the critical importance of illuminating the tunnel’s threshold zone to minimize accidents. Three different simulation models are created based on the bilateral symmetrical lighting system and the transverse lighting system at the entrance and exit zones of the tunnel. Models 1, 2, and 3 show a negative correlation, which implies that the illuminance level decreases with an increase in distance from the tunnel entrance. The illumination level in the tunnel entrance section is highest (1161 lx at 2.5 m distance from the entrance) in Model 3, which implies that the black hole effect during daytime is minimal in the case of bilateral symmetry with transverse lighting arrangement. This chapter contributes valuable insights into the strategic optimization of tunnel illumination, which is vital for enhancing safety and cost-effectiveness in challenging and other high-altitude tunnel environments.