Citation

Renzler M, Reithmaier N, Reinhardt R, Pohl W, Ußmüller T. Tunn. Undergr. Space Tech. 2018; 72: 114-119.

Copyright

(Copyright © 2018, Elsevier Publishing)

DOI

10.1016/j.tust.2017.11.017

PMID

unavailable

Abstract

In this study we employ a road tunnel model to simulate the crossing in a car at variable speeds using running LED-lights. Different lighting situations were created, namely symmetric-, counterbeam- and probeam lighting and were measured using a luminance camera. The results show that probeam lighting yields a much better object illumination than counter-beam- and symmetric-lighting while consuming the same amount of power as symmetric- and counterbeam lighting due to use of LED-technology. Based on this we argue that probeam lighting is a viable alternative to the commonly used counterbeam lighting in the interior zone of road tunnels.

Language: en

Keywords

LED; Probeam lighting; Road security; Road tunnels; Tunnel crossing