Simplified Calculation Model for Threshold Luminance Difference of Road Lighting
WENG Ji,HE Ying and HUANG Ke
DOI:10.11835/j.issn.1674-4764.2010.03.016
Received September 26, 2009,Revised , Accepted , Available online July 01, 2015
Volume ,2010,Pages 88-93
- Abstract
In order to simplify the calculation of threshold luminance difference, based on threshold luminance difference experiment calculation model of ANSI/IESNA RP 8 00, two simplified calculation models were proposed with constant stimuli experiment and Weber Fechner's Law， respectively.Negative contrast correction coefficient, identification time correction coefficient and age correction coefficient were obtained.A road lighting visibility was calculated with these two models and the model of RP 8 00 as a case study.It is found that the visibility values calculated from these three models are in good agreement.