Research Article
A Scale Model of Tension Structures in Road Tunnels to Optimize
the Use of Solar Light for Energy Saving
Table 2
Illuminance values under the three tension structures at different times of the day.
| | Mean illuminance in lux (right lane) | Mean illuminance in lux (left lane) | | TIME | 12:00 h | 14:15 h | 16:00 h | 12:00 h | 14:15 h | 16:00 h |
| | Structure 1 | 6104 | 5123 | 3845 | 4226 | 5929 | 7120 | | Structure 2 | 5884 | 5730 | 4784 | 3450 | 5410 | 7939 | | Structure 3 | 4984 | 4865 | 3878 | 3235 | 4668 | 6266 |
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