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Journal of Advanced Transportation
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Journal of Advanced Transportation
/
2021
/
Article
/
Tab 1
/
Research Article
Study on the Influence of LED Spectrum on the Visual and Nonvisual Effects in the Interior Zone of Tunnels
Table 1
The corresponding target luminance to different background luminance.
Background luminance (cd/m
2
)
Target luminance (cd/m
2
)
1
1.4
2
2.8
3
4.2