The zonal cavity system applied to tunnels.

Author(s)
Faucett, R.E.
Year
Abstract

This paper deals with the practical solution of typical problems faced by the engineer today in predicting illumination levels to be obtained. The zonal cavity method is applicable to predicting illumination levels on the pavement and walls of tunnels.

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Publication

Library number
A 6342 fo
Source

Illuminating Engineering, Vol. 66, 1969, p. 600

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