Author(s)

R. A. Morrison

Abstract

Increasing populations in cities means more money, energy and time is spent on the transport of people. Finding more energy efficient methods in designing and constructing transport infrastructure is essential to the sustainable future of urban living. This case history paper explains the methods adopted and results achieved by designing the tunnel lighting system for a typical transport tunnel in Australia with detailed 3D modelling software in a departure from usual methods. Transport tunnel lighting systems are usually studied in software models that assume the tunnel is a symmetrical flat floored and straight sided tube structure. In most cases transport tunnels are never flat floored, symmetrical or straight sided. Using a 3D CAD model of the tunnel interior in lighting software capable of calculating complex spaces a realistic lighting model can be created. This model is used to comparatively analyse the various lighting products available to find the best for purpose solution to the design. Whole of life cost analysis is used to understand which lighting system will provide the lowest overall operating and maintenance cost. Calculating the lighting in a 3D model also predicts installed compliance. The results of a post installation audit of the lighting shows a high level of delivered accuracy. This translates to a safer driving environment, reduced overall installation costs, lower whole of life energy consumption, maintenance costs and reduced carbon emissions when compared to more traditional design methods. Keywords: tunnel lighting design, 3D modeling, whole of life cost analysis.

Keywords

tunnel lighting design, 3D modeling, whole of life cost analysis.