Road Tunnel Lighting Guide - nature-ic.am

1 road Tunnel Lighting Guide John Rands CEng MILP Yerevan, Armenia, 20 April 2016 Ministry of Nature Protection of RA Contents Overview road Tunnels - Overview Styles Of Tunnel Lighting Current Practice road Tunnel Lighting Design & Performance Short Tunnels Materials & Installation Summary Of Recommendations Risk Assessment 2 "Green Urban Lighting " UNDP-GEF/00074869 project Running Hours 3 "Green Urban Lighting " UNDP-GEF/00074869 project Initial Design Requirement Prior to embarking on a Lighting design or a Lighting design specification for a road Tunnel the following criteria will be required to be established: Structural details of the Tunnel . Design / speed limit of approach road (s). Stopping Distance (m) Tunnel Class based on: Traffic Flow Rate Traffic Mix Access Zone Luminance L20 (cd/m2) K factor value based on Tunnel Class & Speed Limit Threshold Zone Luminance based on L20 x K (cd/m2) To t a l Threshold Zone Length = Stopping distance (m) Interior Zone Luminance based on Tunnel Class & Speed Limit (cd/m2) Exit Zone Luminance = 5 x Interior Luminance (cd/m2) Exit Zone Length (m) road Surface Category (R1, C2 etc.)

2 "Green Urban Lighting " UNDP-GEF/00074869 project 4 Design and Performance Requirements (1) 5 "Green Urban Lighting " UNDP-GEF/00074869 project Design and Performance Requirements (2) 6 "Green Urban Lighting " UNDP-GEF/00074869 project Entrance Zone Performance Requirements 7 "Green Urban Lighting " UNDP-GEF/00074869 project Conclusions per Evaluations where LTP < 20%, artificial daytime Lighting should always be provided; where LTP > 80%, artificial daytime Lighting is generally not needed; where LTP is between 20% & 80%, the following additional process should be followed to determine if daytime Lighting is needed 8 "Green Urban Lighting " UNDP-GEF/00074869 project Devices and Tools (1) 9 "Green Urban Lighting " UNDP-GEF/00074869 project Devices and Tools (2) 10 "Green Urban Lighting " UNDP-GEF/00074869 project Alternative Control Guidance Lighting Bibliography CIE: CIE 88:2004 2nd Edition, International Commission on Illumination Guide for the Lighting of road tunnels and underpasses BSI: BS 5489-2:2003+A1:2008 Code of practice for the design of road Lighting Lighting of Tunnels CEN: CR 14380: 2003 (Technical Report) Lighting applications Tunnel Lighting MCHW.

3 Mechanical, electrical and communications work for road tunnels 11 "Green Urban Lighting " UNDP-GEF/00074869 project