Britain's record-breaking heatwave has brought unprecedented challenges on the roads, with temperatures soaring to 40°C in some areas causing roads to soften and become hazardous. Motoring organisations have sounded a stark warning, urging drivers to exercise extreme caution or risk serious consequences.
The extreme heat is taking its toll on asphalt roads, particularly where heavy traffic or old road surfaces are concerned. As bitumen heats up, it becomes pliable and can even melt, compromising vehicle grip and risking damage. This phenomenon is more pronounced in high-traffic areas and on older surfaces, where tyre pressure can deform the softened material.
The AA and RAC have highlighted several key risks, including increased puncture or blowout likelihood due to overheating tyres, reduced braking efficiency on softened roads, and vehicles getting stuck in severely compromised sections. Drivers are being advised to regularly check tyre pressures, ensure their vehicle is adequately maintained for the heat, and be aware of sudden changes in road conditions.
The impact is being felt across all four UK nations, with England's south and east regions experiencing the highest temperatures. Local authorities in these areas are monitoring roads closely, reporting visible signs of softening. Scotland, Wales, and Northern Ireland are also experiencing high temperatures, leading to similar concerns for road safety – albeit potentially less widespread than in England.
Practical advice includes maintaining a safe distance from other vehicles, avoiding sudden acceleration or braking, and being vigilant on rural roads which may be more susceptible to softening. The Met Office's extreme heat warnings underscore the need for caution not only for drivers but for all members of the public.