Application Of Tunnel Lighting Theory Based On Traffic Safety Visual Model

Highway tunnel lighting plays an important role in the protection of the tunneloperational safety and improving the traffic efficiency, with the deepening of concept ofenergy saving in highway construction and operation phase, study of energy savingfor tunnel lighting has become an important part of highway energy-saving operation.Optimization of design, testing, evaluation methods of the tunnel lighting quality werestudied in this paper, the theory of middle visual and characteristics of human eyespectral response were applied, and the evaluation method for highway tunnel lightingquality was researched.It is determined that lighting conditions of basic highway tunnel section and mostof the transition section belong to the middle visual, design, testing standards ofhighway tunnel lighting of domestic and foreign were researched in combination withtunnel lighting application status in country.The function of the variable x is assigned by analysis of existing data, base on theMOVE model of middle visual theory, it is associated with the light source spectraldistribution and intensity, the middle of the visual equivalent brightness was obtained byfunction proportional relationship among photometric parameters. It can provide morescientific and rational basis for selection of light sources, lighting design and evaluation.Lighting conditions formulated by tunnel lighting brightness with certainbackground was simulated in laboratory, to evaluate the effect of lighting in a certainapparent brightness conditions based on human perception, reaction time. Test system ofresponse time was used in the research.Spectral characteristics of the same luminous flux, the same peak half-width, thedifferent peak wavelength were introduced into specific light spectrum, to achieve thecharacteristic spectral compensation, impact from compensation light with the samelight and different colors to the brightness of the human eye were calculated,so as toprovide support to the development and transformation of existing lighting.Thesis research can effectively solve problems in new light source for lighting andenergy-saving effect evaluation, it is useful for guide design and effects evaluation inhighway tunnel lighting.