Vehicles: Headlamp Glare

Baroness Hayter of Kentish Town Excerpts

Tuesday 9th May 2023 Lords Chamber

Asked by

[Baroness Hayter of Kentish Town]

To ask His Majesty’s Government, further to the Written Answer by Baroness Vere of Norbiton on 31 March (HL6792), what progress has been made at the United Nations to amend headlamp aiming criteria so as to reduce the risk of glare from LED and other light sources.

[The Parliamentary Under-Secretary of State, Department for Transport (Baroness Vere of Norbiton) (Con)]

My Lords, the United Nations Economic Commission for Europe’s road vehicle lighting expert group met at the end of April and agreed changes to the headlamp aim requirements to reduce the occurrence of glare. This includes the introduction of mandatory automatic headlamp levelling systems for all types of headlamps in new vehicles, most likely from 1 September 2027.

[Baroness Hayter of Kentish Town (Lab)]

I thank the Minister for that Answer, which deals only with the aiming of the lights and not the lights themselves, and for the meeting that she had with me. However, the Department for Transport seems to think that, because no deaths have been recorded, there is not a problem. In fact, the College of Optometrists reports that nearly all their members are seeing patients presenting with what they think is a problem with the eyes, to discover it is the lights from cars that are at fault rather than their sight. Many people are in fact choosing not to drive at night because of that. Since my last Oral Question, I have heard from cyclists saying they have a problem, and from motorcyclists who say that, when it is wet, there is a real dazzle with the visors. There are three-quarters of a million cars retrofitted with unregulated LED lights; that is a real road safety issue. Could the Minister perhaps get the department on to the front foot, to get some research done and get some action? We should not wait for accidents and deaths before we do something about this problem.

[Baroness Vere of Norbiton (Con)]

I am delighted to let the noble Baroness know that the department has already done research in this area. The 2018 research concluded that overall there are no direct adverse health effects from LED lights in normal use. However, the crux of all this—the noble Baroness did point it out—is that there is no evidence of any causal link at all to headlight glare causing accidents. Glare is subjective; sometimes it can be caused by poor eye health, which can be corrected in certain circumstances, but we cannot eliminate glare altogether, because of course having headlights pointing in the right direction is essential for road safety.