| The operation management units only open partial lighting for saving energy and reducing operating cost,even close all lamps in late at night to bring great traffic safety hazard,which causing obvious contradiction of traffic safety and lighting energy saving in highway tunnels during the operation period.This paper is based on the National Natural Science Foundation of China(51578433).This paper focuses on the contradiction of traffic safety and lighting energy saving in highway tunnels during the operation period.In order to study on energy saving effect of interior reflective material and lamp arrangement on lighting energy in the highway tunnels.For reference,this paper uses the theory and method of traffic engineering,ergonomics and visual simulation,and with the help of the basic section of highway tunnel lighting simulation model made by calculation software DIALUX to find out the best way to combine interior reflective material with lamp arrangement of simulation experiment based on traffic safety and energy saving,achieved the goal that the unity of traffic safety and lighting energy saving in highway tunnels.High reflection coefficient interior material can increase highway tunnel reflection increment coefficient to add pavement illumination and reduce lamps power output to achieve the purpose of energy saving.Different ways of setting lamps affect different the road average illumination and uniformity of illuminance,meanwhile different lamps and the combination of interior reflective material and lamp arrangement lack quantitative analysis and study on the energy-saving effect of the basic section of highway tunnels.The simulation model of the basic section of highway tunnel is made by the DIALUX Illumination calculation software,adopting to change the ceiling and side wall material reflection coefficient,with different lamps(HPS/LED)to conduct three kind of layout methods(central layout,unilateral layout and bilateral staggered layout)to study the effect of energy saving.This experiment uses average illumination and uniformity of illuminance as traffic safety evaluation indicators and lamps cost and annual operating cost as lighting energy saving evaluation indicators to find out the method of highway tunnel lighting based on lighting energy saving and traffic safety,combined with economic and social benefits.The experimental conclusion:(1)the reflection coefficient of the ideal range ceiling materials is 0.5~0.7,the reflection coefficient of side wall material is 0.7~0.8;(2)the average illumination and illumination uniformity of LED lamp is better than that of HPS;(3)average illumination: concrete pavement>asphalt pavement,uniformity of illuminance: asphalt pavement > concrete pavement;average illumination and uniformity of illuminance: central layout > bilateral staggered layout>unilateral layout;(4)total cost: current situation of the highway tunnels > combination of reflective material and HPS in the highway tunnels> combination of reflective material and LED in the highway tunnels. |
