1. BS Publication 5489-2:2016, 2016. Code of Practice for the Design of road lighting Part 2: Lighting of tunnels.
2. BS Publication 5489-1:2020, 2020. Design of Road Lighting Part 1: Lighting of roads and public amenity areas.
3. Comparative Life Cycle Assessment of Lighting Systems and Road Pavements in an Italian Twin-Tube Road Tunnel;Cantisani;Sustainability,2018
4. CEN/CR Publication 14380: 2003, 2003. Lighting applications - Tunnel lighting.
5. CEN/TC Publication 13201-3:2016, 2016. Road lighting - Part 3: Calculation of performance.