Tunnel Lighting and Ventilation Service Contractor
Road tunnel lighting is an important subject and design of the lighting is done based on certain parameters like, max speed allowed, stopping distance, volume of the tunnel, external luminance and topography of the tunnel etc ..
Standards followed while designing is based on CIE 88:2004,ANSI/IES RP22-11, and in India it is widely followed with the general guidelines of IRC SP 91:2010 , IRC SP87:2013.
The objective of the tunnel ventilation system is to control and/or to extract smoke and heated gases and provide a non-contaminated environment for egress of tunnel users. Another objective is to support firefighting and rescue operations. In both cases, the primary goal is to
control smoke and hot gases as the result of fire during any eventuality