Research Article
Study on Optimization of Night Illumination in Expressway Long Tunnels
Table 4
Assessment results of easing lighting entrance segment.
| Comment | Too bright | Brighter | Appropriate | Darker | Too dark |
| New entrance illumination | 0.00 | 0.00 | 0.90 | 0.5 | 0.5 | Original entrance illumination | 0.8 | 0.2 | 0.0 | 0.0 | 0.0 |
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