Frequently Asked Questions
A: The Illuminating Engineering Society (IES) publishes a recommended practices guide for tunnel lighting under ANSI/IES RP-22-11. The latest manual was published in 2011, and it provides engineers and specifiers assistance in determining needs, recommending solutions, and evaluating resulting visibility at vehicular tunnel approaches and interiors.
A: The TunnelPass LED™ is suitable for use in all tunnel and underpass areas for roadway and railroad applications. It has a robust design with an IP66 rating, which means it is completely sealed from dust and water intrusion and is tested to withstand high pressure jets of water from any direction. So, it can also be cleaned periodically by power washer, since tunnels can be an extremely harsh and dirty application environment.
It also has a 3G vibration rating. Luminaire vibration testing is covered by the ANSI C136.31 test standard, which provides the minimum vibration-withstand capability, and vibration test methods for roadway luminaires.
A: When lighting a tunnel, its length, geometry and immediate environment must be considered as well as traffic densities. Differing light levels are set for each project, per the standards and best practices set forth in ANSI/IES RP-22-11.
A: Our tunnel lights can work with a variety of different controls platforms. Acuity Brands has several control options available and also a network of control partners that we work with on different control specifications where applicable.