Summer Traffic Dangers: Slippery Roads and Increased Accidents

Summer roads, often associated with sunshine and leisure, present a deceptive array of dangers that can lead to an increase in fatal traffic accidents. Contrary to what might be expected, the period from May to August sees more fatalities than winter months, according to Transportstyrelsen. This rise affects all road users, from car occupants to vulnerable motorcyclists and moped riders.

The statistics reveal that increased road usage during good weather contributes to more accidents. "A higher number means the number of accidents increases. Unprotected road users are particularly vulnerable because they are just unprotected," explains Staffan Berge, a statistician at Transportstyrelsen. The data shows a notable rise in accidents involving motorcycles and bicycles during the summer.

Beyond the sheer volume of traffic, summer weather itself introduces unique hazards. Hot asphalt can become dangerously slippery, a phenomenon exacerbated by "bleeding asphalt" where the binding agent rises to the surface under prolonged high temperatures. This is particularly risky on newly paved roads. Additionally, polished road surfaces in curves and intersections, and loose gravel from road repairs, can create treacherous conditions. Intense summer rains also heighten the risk of aquaplaning, especially if tires have worn tread.

Long-distance travel, a hallmark of summer holidays, requires diligent preparation. Fatigue is a significant contributing factor in about one in five traffic accidents, according to M Sverige and VTI. Drivers are urged to be well-rested, maintain appropriate speeds, and keep safe distances to mitigate these risks.

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A higher number means the number of accidents increases. Unprotected road users are particularly vulnerable because they are just unprotected.