Hiratsuka, S., Kojima, S., Shiraki, N., Higuchi, K. et al., "Smart Lighting for Enhancing Perception of Pedestrians based on Visual Properties," SAE Int. J. Trans. Safety 4(1):25-32, 2016, doi:10.4271/2016-01-1414.
We investigated a lighting method that supports pedestrian perception by vehicle drivers. This lighting method makes active use of visual characteristics such as the spatio-temporal frequency of contrast sensitivity. Using reasonable parameter values derived from preliminary experiments using a Campbell-Robson chart, we determined a suitable lighting pattern that improves the driver's pedestrian perception. In order to assess the influence of visual characteristics on a reaction-time-dependent task, such as pedestrian perception in nighttime, tests were performed in the target environment, the results of which validated the proposed method.