Impacts of Various High Beam Headlight Intensities on Driver Visibility and Road Safety

J. Prasetijo, Z. Mohd Jawi, M. A. Mustafa, Z. Zadie, H. A. Majid, M. H. Roslan, I. Baba and A. F. H. Zulkifli

Abstract: Based on several studies, driving above certain speed at night while using low beam headlights has been found to result in insufficient visibility to respond to road hazards. Luckily, vehicle headlight technology has advanced so much and the system is commercially available in many parts of the world. However, the technical development for optimal photometric performance raises a few questions. The use of high beam headlight system creates a glare to drivers of oncoming and preceding vehicles (because of both oncoming headlights and preceding taillights), to the extent that it has become necessary to determine the need to put a limit on the luminous intensity of high-beam headlights. This study shall therefore summarize and investigate visual performance that allows for evaluation of the potential benefits of increased luminous intensity by considering glare rating related to safety. Two different car models; the Proton Prevé and the Perodua Myvi were used in the experiments. The results showed that the highest average illuminance [lux] for single vehicle was 17.5, 7.5, 5.0 and 1.0 for the distances of 30m, 60m, 120m and 150m. However, the average illuminance based on total number of vehicles was 1.0, 0.5, 0.0 and 0.0 at distances of 30m, 60m, 120m and 150m, which were considered below maximum recommended safety level (max. 9.0 – 11.0 lux). The current average vehicle high-beam headlight control was found at the level of acceptable glare control (glare to oncoming and preceding drivers) and below the maximum level of illuminance rate with the normal speed of 40 km/h.

Keywords:Headlights beam, lumens, flux level, illumination, traffic safety


Bullough, J.D., Donnell, E.T., & Rea, M.S. (2013). To illuminate or not to illuminate: roadway lighting as it affects traffic safety at intersections. Accident Analysis and Prevention, 53, 65-77.

Bullough, J.D. (2014a). Adaptive high beam systems: Visual performance and safety effects. SAE Technical Paper 2014-01-0431. doi:10.4271/2014-10-0431.

Bullough, J.D. (2014b). Vehicle forward lighting: A new look at intelligent adaptive headlamps, safety and performance. Proceedings of the VISION 2014 Congress. Suresnes: Société des Ingénieurs de l’Automobile.

Bullough, J.D., Skinner, N.P., & Plummer, T.T. (2016). Adaptive driving beam headlights: visibility, glare and measurement considerations. A Transportation Lighting Alliance Report TLA 2016- 01.

De Boer, J. (1967). Public lighting. Eindhoven, Netherlands: Philips Technical Library.

Flannagan, M.J., & Sullivan, J.M. (2011). Feasibility of new approaches for regulation of motor vehicle lighting performance. Docket no. NHTSA-2011-0145. Washington, DC: National Highway Traffic Safety Administration (NHTSA).

Hosseinpour, M., Yahaya, A.S., Ghadiri, S.M., & Prasetijo, J. (2013). Application of adaptive neuro- fuzzy inference system for road accident prediction. KSCE Journal of Civil Engineering, 17, 1761-1772.

IIHS (2016). [Unpublished analysis of data from the fatality analysis system]. Arlington, VA: Insurance Institute for Highway Safety (IIHS).

JKJR (2014). Road Safety Plan of Malaysia 2014-2020. Putrajaya: Road Safety Department Malaysia (JKJR).

Prasetijo, J., & Zainal, W.Z. (2016). Development of continuous speed profile using GPS at Johor Federal Roads F0050. MATEC Web of Conferences, 47, 03001.

Prasetijo, J., & Musa, W.Z. (2016). Modeling zero-inflated regression of road accidents at Johor Federal Road F001, MATEC Web of Conferences, 47, 03001.

Prasetijo, J., Musa, W.Z., & Zainal, W.Z. (2017). Road fatality model based on over-dispersion data along Federal Route F0050, MATEC Web of Conferences, 103, 08012.

Prasetijo, J., Zang, G., Guntor, N.A.A., Daniel B. D., Sanik, M.E. (2018). Change of road integrated design consistency due to antiskid transverse rumble strips on high-speed Federal Road FT050. Advances in Civil Engineering Materials, ASTM, Volume 7 (3), pp. 460-472

Rumar, K. (2000). Relative merits of the U.S. and ECE high-beam maximum intensities and of two-and four-headlamp systems. UMTRI-2000-41. Ann Arbor, MI: University of Michigan.