Nyx Hemera Technology brightens up Arizona’s Queen Creek Tunnel

Nyx Hemera Technology is supplying its Tunnel Lighting Addressable Control System (TLACS) with Holophane’s luminaires in the Queen-Creek tunnel in Arizona. TLACS is an intelligent control system that adjusts lighting levels based on ambient brightness and outdoor weather conditions. According to the company, it reduces energy consumption, significantly reduces maintenance and improves the visibility of drivers commuting in the tunnel.
December 14, 2017 Read time: 2 mins
Nyx Hemera Technology is supplying its Tunnel Lighting Addressable Control System (TLACS) with Holophane’s luminaires in the Queen-Creek tunnel in Arizona. TLACS is an intelligent control system that adjusts lighting levels based on ambient brightness and outdoor weather conditions. According to the company, it reduces energy consumption, significantly reduces maintenance and improves the visibility of drivers commuting in the tunnel.


The Queen-Creek Tunnel is the first tunnel in Arizona to install technology for lighting control, said Pierre Longtin, president of Nyx Hemera. The $3 million renovation of the 400m tunnel, built in 1952, is part of ongoing efforts to upgrade the US state’s road network to improve security and luminaire efficiency.

The project involves removal of the interior lighting, installation of an LED lighting system with an intelligent control system, replacement of the exterior lighting at both ends of the tunnel, the adaptation of the current electrical control building and the cleaning of the walls and ceiling of the tunnel.

The Tunnel Lighting Addressable Control System is being used in tunnels also in Singapore, Europe, the Middle East, South America and Canada with LED and HPS lighting systems.

Holophane, based in the US city of Newark, provides lighting systems for commercial, industrial, emergency and outdoor applications.

Highway & Network Management

Related Content

  • Integrated corridor management offers transportation efficiency
    May 28, 2013
    In the Intelligent Transportation Systems world, the concept of managing roadway or transportation corridors is not new. Smart Corridor concepts have existed for some time, such as the Santa Monica Smart Corridor system from the 1990s. Across the world, a new emerging model for operating roadway transportation networks called integrated corridor management (ICM) has emerged. This is particularly true in California, where several new ICM projects have or are being deployed. There is a new paradigm for corrid
    Read More
  • BC again eyes Massey Tunnel replacement
    December 21, 2020
    The aging 61-year-old Canadian tunnel is about 30km north of the US state of Washington.
    Read More
  • Driverless vehicles -safe at any speed?
    May 22, 2018
    The development of driverless vehicles is ongoing, with manufacturers in the US, Europe, Japan, South Korea and China all working on various projects. But as the recent pedestrian fatality involving a driverless car under test in Arizona highlights, safety is not entirely assured. One key problem is that the road environment is not straightforward and self-driving vehicles have to share roadspace with vehicles under human control. However, human behaviour is not easy to predict. Nor is there one mode of beh
    Read More
  • Lumitex lights up EastLink
    October 26, 2021
    The two EastLink tunnels in Melbourne, Australia, have become the first major tunnels in Victoria state to be lit by LED lighting.
    Read More

Highlighted Content