Unarski, J.
Wach, W.; Ciępka, P.
Lecture
2013
22. EVU Conference, Florence
Unarski, J.: Determining Visibility Distance Based on Measurements with LMK System
A new LMK system was used to measure the luminance of non-illuminated obstacles at night and the background. Next, a calculation of the parameters of visibility, i.e. the threshold luminance difference, at which is necessary for an object to be visible in the conditions of dynamic observation (i.e. driving at night-time) was performed. The calculations were done in various ways taking into account the effect of the glare from oncoming vehicles. The results were compared with the results of other empirical tests. A visibility study using the LMK system was proposed and an original computer program for multi-parameter calculation of predicted visibility distance was developed. The system was found to be particularly useful in complex road-atmospheric conditions.
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