Uttley, J., Fotios, S. and Cheal, C. (2016) Effect of illuminance and spectrum on peripheral obstacle detection by pedestrians. Lighting Research & Technology. ISSN 1477-1535
Obstacle detection is an important visual task for pedestrians. An experiment was carried out to measure the ability to detect peripheral obstacles under variations of illuminance and S/P ratio and with older and younger test participants. The LED array used in this work enabled S/P ratio to be varied whilst chromaticity was held constant. The tests employed a full scale model with dynamic fixation to better simulate pedestrian experience than in past work. Detection performance increased with illuminance, reaching a plateau at 2.0 lux. A higher S/P ratio improved obstacle detection but only at the lowest illuminance used in this study (0.2 lux). Older participants showed poorer obstacle detection performance than younger participants but again only at the lowest illuminance.
|Copyright, Publisher and Additional Information:||© The Chartered Institution of Building Services Engineers 2015. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page(https://us.sagepub.com/en-us/nam/open-access-at-sage).|
|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:||26 Jan 2016 13:14|
|Last Modified:||26 Jan 2016 13:14|