Fotios, S. and Cheal, C. (2013) Using obstacle detection to identify appropriate illuminances for lighting in residential roads. Lighting Research and Technology, 45 (3). 362 - 376. ISSN 1477-1535
This paper uses data regarding detection of pavement obstacles to explore two approaches to establishing an appropriate illuminance for road lighting designed to meet the needs of pedestrians. A previous obstacle detection experiment was repeated using young observers under high pressure sodium (HPS) lighting. One approach was to identify whether there is a plateau-escarpment relationship between obstacle detection ability and illuminance – better detection with increasing light level until further increases bring little improvement: This suggested an appropriate illuminance of 5.7 lux. The second approach was to identify the size of an obstacle that a pedestrian should expect to be able to detect and the associated probability of detection: An obstacle of height 25 mm located 6 m ahead may require 1.8 lux to be detected with 95% probability.
|Copyright, Publisher and Additional Information:||© 2013 The Chartered Institution of Building Services En. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.|
|Institution:||The University of Sheffield|
|Academic Units:||The University of Sheffield > Faculty of Social Sciences (Sheffield) > School of Architecture (Sheffield)|
|Depositing User:||Symplectic Sheffield|
|Date Deposited:||31 Oct 2014 12:14|
|Last Modified:||31 Oct 2014 12:14|