Quantitative comparisons of the benefits of applying adaptive headlighting to the current U.S. and European low-beam patterns.

This study examined the potential benefits of applying two embodiments of adaptive lighting to USA and European beam patterns: curve lighting that involves shifting the beam horizontally into the curve, and motorway lighting that involves shifting the beam vertically upward. Changes in both seeing and glare illuminance were considered. As simulated in the study, it was concluded that curve lighting would substantially improve seeing performance on curves for both types of beams. On right curves only there would be an increase in disability glare for oncoming traffic but major disability glare would not occur. Motorway lighting would also substantially improve seeing performance with little risk of glare. Both USA and European beam patterns benefited from the adaptive lighting. For the covering abstract see ITRD E123380.