Analysis of the Impact of Tunnel Surface Material Reflective Characteristics on Lighting Effectiveness
SHI Zhao
Abstract：This study aim to thoroughly analyze the impact of the reflective properties of various tunnel surface materials on lighting effectiveness.DIALux software was used to establish a lighting simulation model to evaluate the lighting effects.The evaluation indicators include the average luminance of the road surface,overall uniformity,and longitudinal uniformity along the road surface centerline.In addition,a sensitivity analysis was performed using a Back Propagation Neural Network(BPNN)to quantify the specific impact of the surface reflectance properties of the tunnel ceiling,sidewalls,and road surface on the lighting effect.The results of the study indicate that the reflectance coefficient of the ceiling material has the most significant impact on tunnel lighting effects,while the influence of sidewall and road surface materials is relatively smaller.This finding provides important reference for tunnel lighting design,especially in terms of material selection and lighting parameter optimization,helping to enhance the performance and energy efficiency of the lighting system.
Keywords：tunnel lightinglighting simulationorthogonal testBP neural networksensitivity analysis
Publication Date：2025-02-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 87-93 )