Vehicle Headlight Glare Standards

Scott Arthur Excerpts

Wednesday 29th October 2025 Westminster Hall

[Peter Lamb]

Although the researcher involved did not look into particular age groups, I think we all know that on balance, it is often older citizens who are far more inclined to feel the issue of headlights and problems with driving in general. When looking at the numbers, which show the scale of people who are simply staying at home because they no longer feel safe in the road, we realise that something clearly has to be done. The overwhelming majority of those who say that they are no longer driving at night, or would not drive if they had the choice, cite headlight glare as the primary reason.

[Dr Scott Arthur (Edinburgh South West) (Lab)]

I congratulate my hon. Friend on securing his first Westminster Hall debate. I thought this was an issue of personal annoyance until I met Alan, an old colleague from Heriot-Watt University, who said he found it difficult to go out in the evening and was not looking forward to winter. He is a young man—even younger than me—so does my hon. Friend agree that we need more research to fully understand the negative impacts of these lights?

[Peter Lamb]

Certainly, there is probably work to be done in general around how transport impacts social isolation, and particularly at different times of day. We know the impact that losing bus routes has had on rural communities, and the age brackets for which that causes huge problems. Transport for many people is an essential part of daily life; they do not have the options that those of us lucky enough—I say lucky—to live in an urban area have available to us. We have to think of the enormous impact that this issue has not only on convenience, but on someone’s ability to get through life.

There are options available to drivers to reduce headlight glare. They can try keeping their windscreen and glasses clean; they can adjust mirrors to reduce glare; and they can ensure that their own headlights are properly aligned and avoid buying SUV-type vehicles. [Interruption.] Well, they could. Although all those things would see an improvement in our roads, driving-related law in the UK should not be reliant on voluntary measures by drivers. The law relating to driving begins from the starting point that every vehicle is a lethal object and rigid rules are required to manage that risk.

The track record of accidents stemming from headlight glare is now sufficiently clear, but it is time for that to be recognised in law with a new standard to ensure that headlights in the United Kingdom do not exceed safe levels of brightness. I am glad that the Department for Transport appears to have recognised that, with the Transport Research Laboratory having been commissioned last year to study the impacts of headlight glare. I understand that research was supposed to have been completed in the spring, but it has not yet been published. Despite that, there have been positive noises, certainly in recent days, about headlight glare being addressed, in part through the new road safety strategy. I hope that hon. Members will receive assurances about that from the Minister, and I hope that this debate will help to maintain pressure for the action that our constituents deserve at the earliest opportunity.

--- Later in debate ---

[Richard Foord (Honiton and Sidmouth) (LD)]

It is an honour to serve with you in the Chair, Mrs Harris.

As the clocks go back and evenings grow darker, drivers in Devon are finding that dazzling headlights are no longer just a nuisance, but a real danger on our roads. This week, for the first time since summer, many of the people I represent are trying to get around in the dark along the dark lanes and long roads that surround Sidmouth, Honiton and Seaton. A burst of a full beam before it is dipped can leave drivers disoriented. Add in a wet road, a scattering of potholes and maybe a cyclist, and it is a recipe for a near miss. Those do not always make it into the statistics, but anybody who drives knows them, because they have been there.

Many people in Devon are saying the same thing to me: headlights feel brighter than they used to. They are right. I remember when halogen bulbs were first introduced. They cast a much longer beam than we had known before, but now those have been surpassed by LED. The RAC’s recent polling backs this up: almost every driver thinks that some headlights are too bright, and more than half have been temporarily blinded. A quarter now do not drive for fear of such temporary blinding.

[Dr Arthur]

That is an interesting point. If most drivers think there is an issue, that means their cars are probably part of the problem. Does the hon. Gentleman agree that they should look at their own vehicles first before they start criticising other drivers?

[Richard Foord]

I honestly do not think that we can make this the responsibility of every individual driver; it is our job to come here and legislate on collective problems such as this one.

The problem is especially serious in rural areas such as the one I represent, where the population tends to be older than across the country as a whole. Age changes how the eye copes with bright light at night. A report by road safety consultants released yesterday highlighted that an older person’s eye can take around nine seconds to recover from glare, compared with about one second for a 16-year-old. That could mean not being able to see anything properly—potholes, pedestrians or cyclists—for the length of an entire football pitch.

In 2024, more than 600 people were injured on Devon and Cornwall’s roads, and sadly 56 lost their lives in road traffic collisions. Plainly, the sort of glare we are talking about will not have been responsible for all of those incidents, but I know from a constituent who came to see me in a surgery that at least one of those fatalities related to glare from sunlight. If adapting headlights to reduce glare helps to prevent even one of those tragedies, it is worth looking into it.

LED headlights give the driver a clearer, crisper view but, when they are not properly fitted or aligned, their tight, blueish beam can cause real discomfort for others on the road. Penalties for sellers peddling unsafe kits would make a difference. When the Government’s report is released in the coming weeks, it is vital that its recommendations are acted on quickly. Following the evidence could help us to save lives on the roads.

People in Seaton, Sidmouth and Honiton want to get home without feeling that they are gambling every time with a bright set of lights coming around the bend. Let us make sure that our vehicles light the way home safely, rather than blinding those who share our roads. I am grateful to the hon. Member for Crawley (Peter Lamb) for bringing this issue to the fore.