Abstract:

The list data of JTG/T D70/2-01—2014 Guidelines for Design of Illumination of Highway Tunnels are limited, because of which the control of continuous parameter valuing can not meet the requirement of illumination of highway tunnels. The illumination reduction coefficient of tunnel entrance section, luminance of intermediate section and calculation formula of illumination parking stadia are fitted by curve fitting tool MATLAB, and the maximum fitting error is -1.43%, -1.7% and 8.48% respectively. The influences of vehicle flowrate in tunnel, luminance outside tunnel and tunnel slope variation on illumination power in tunnel are simulated and analyzed; and optimization methods for energy saving of illumination in tunnel are proposed. The results show that: 1) The illumination power induced by vehicle flowrate in tunnel and luminance outside tunnel increases rapidly when the design vehicle speed is larger than 60 km/h. 2) The formularized tunnel illumination design can provide reference for design and optimization of illumination power under any cases.

Key words: highway tunnels, sectional illumination, formula fitting, illumination power, energy saving optimization