Research Article
Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone
Table 2
Comparison of lighting performance between the optimized new CBL design and prototype sample measurements in threshold zone of a tunnel.
| | Variable | Simulation model of the optimized new CBL | Prototyped sample of the optimized new CBL | CIE standard |
| | Lav(cd/m2) | 123 (pass) | 121 (pass) | >105 | | 0.84 (pass) | 0.88 (pass) | >0.4 | | 0.97 (pass) | 0.98 (pass) | >0.6 | | 10.41% (pass) | 4.41% (pass) | <15% | | 1.19 (pass) | 1.08 (pass) | >0.6 |
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