・ In the excavation section, discomfort occurs due to flickering due to repeated sunlight
・自然換気を可能とし、且つ昼間等のトンネル照明を不要とする採光性を確保したルーバーを開発・採用し、走行環境を向上
Cross section of excavation part
To secure the driving environment, it is necessary to install a "shading louver" on the upper part of the excavation strut.
Occurrence of flicker
Membrane shading louver
Glass shading louver
