Bike lights and daylight visibility: Why cyclists should be seen at all times

by Gareth Fullerton December 09, 2016

Bike lights and daylight visibility: Why cyclists should be seen at all times

What do you look for when buying a bike light? You might consider brightness and decent battery life as being important features, or you might want a light that offers good visibility in the dark. But what about being seen during the daytime? How much emphasis do you place on daylight visibility?

It is a crucial aspect of cycling safety that many people tend to ignore when making their purchase. But when you consider that 80 per cent of cycling accidents happen during the day, and with a significant increase in fatalities within a 10-year period, it’s become evident that visibility during the day is now just as important as being seen in the dark.

A greater onus has been placed on cyclists being seen during daylight hours. Companies are designing bike lights specifically for daylight visibility, and it makes sense when you look at some of the research that has been conducted into road safety in recent years.

Following a study of 184 cyclists previously involved in collisions, Australian researcher Phillipe Lacherez found motorists had “looked but didn’t see” the cyclist before it was too late. He suggested that that a solution to this was both wearing reflective clothing and fitting a light which works during the daytime and also at night. Many cyclists sport high-visibility gear when on the roads, but hi-vis clothing only offers visibility during daylight hours as it reflects UV rays from the sun. Lacherez suggested the use of reflective strips on your knees and ankles that allows the lights from cars to bounce back and signal a cyclist’s movement.

In another survey conducted in Denmark, 4000 cyclists were enrolled in an experiment that again proved the benefit of daytime visibility. In the survey, 2000 only used their lights during the hours of darkness, while the other 2000 participants used their bike lights all day. The results showed that there was a 47 per cent decrease in accidents when lights were used throughout the day.

Also, since 2011, all new cars in Europe are required to be fitted with daytime running lights because of the proven safety benefits. If large vehicles like cars need to be seen during the hours of daylight, then surely it makes sense for a cyclist to also require high visibility?

Most accidents have been found to happen during the hours around dawn and dusk. This is partly due to rush-hour traffic, and also because of factors including changing ambient light conditions which can make it more difficult for motorists to spot cyclists. Bright, visible bike lights can help counter that problem by giving cyclists more of a presence during the day.

Daylight visibility lights

Almost half of fatalities occur on rural roads , making them particularly dangerous for cyclists. There are various factors which contribute to the high volume of accidents. Not only does the speed limit tend to be higher, but isolated routes can also be unlit or have poor lighting. Having a bike light that flashes brightly from both front and rear can alert drivers of a cyclist’s presence before they get too close to you, reducing the risk of a collision or near miss.

Motorists have a vital role to play in helping reduce the number of cyclist fatalities and accidents on our roads. Research has found that 60% of major collisions happen at junctions, with drivers commonly reporting that they ‘failed to look properly’. Better awareness of other road users is a crucial factor of road safety for motorists and cyclists alike.

A cyclist also has to be aware of the traffic around them, and by making themselves more visible they are taking an important step towards improving their own road safety. See.Sense ICON and ICON+ lights have been designed with twin CREE LED lights and a fresnel lens to offer unique visibility during the day. Our lights have a 15-hour run-time with optimised battery use, all which can be monitored and controlled from your smartphone and recharged by USB.

Improving cycle safety isn’t just important for reducing fatalities, it can also encourage more people to take up cycling. And the more cyclists we have on the roads, the better cycling infrastructure can be developed to improve the overall cycling experience. Cambridge University found that 85% of local cycling correlating with the provision of better cycle routes. So if we cycle, they’ll build it, and if they build it, we’ll cycle more.

Gareth Fullerton
Gareth Fullerton


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