Presidio Parkway Project in San Francisco (2)

Presidio Parkway 4 tunnels, San Francisco, CA

In order to meet the seismic and roadway safety standard, the former Doyle Drive has been replaced with 4 tunnels to easily access the Golden Gate Bridge. All four tunnels are equipped with the TLACS to dynamically control the luminance according to the lighting level outside and the luminaire degradation inside the tunnel. TLACS controls and monitors over 1900 luminaires, helping the operator save on energy and operational costs. The installation and commissioning has been performed in 2015 for the four tunnels




  • 4 tunnels to access the Golden Gate Bridge
  • 1900 HPS luminaires
  • Completed in June 2015
  • 30% energy saving