Examination of small target visibility and visibility level as road lighting design criteria
(0) The most accepted numerical expressions of visibility in road lighting calculations are Adrians visibility level (VL) and small target visibility (STV). Although both are referred to in recent guidelines and recommendations as design criteria, there is no agreement on their usage. They differ in their calculation method and sense and shall be interpreted in different ways. This study aims to compare and evaluate STV and VL as visibility criteria. Consequently, it is found that there can be many points with very low visibility even if the STV values are much higher than the recommendations. There is the need to define an additional criterion such as visibility uniformity, in order to use STV in road lighting design. Or, VL values on each point shall be considered separately in design.
Road lighting visibility small target visibility luminance road lighting design
ONAYGIL, Sermin G(U)RSOY, Sevgi Ba(s)ak G(U)LER, (O)nder
Istanbul Technical University, Energy Institute
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
772-775
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）