Variable speed limits enforced on highways during rain, 5,433 violations recorded

South Korea is employing advanced technology to enhance road safety during challenging weather, with variable speed limit signs playing a crucial role. These electronic signs dynamically adjust speed limits based on real-time conditions, particularly during periods of heavy rain or other hazardous weather.

An example of this system in action occurred recently on the Seohaean Expressway near Pyeongtaek. As heavy rain fell, the variable speed limit signs flashed "80km," reducing the maximum allowed speed from the usual 110 km/h. This measure was implemented to mitigate risks associated with reduced visibility and slippery road surfaces.

Park Yong-cheol, head of traffic safety at the Korea Expressway Corporation's Dangjin branch, explained the decision-making process. "The road was wet, with large trucks kicking up white spray," he noted, indicating that the speed reduction was based on comprehensive weather information. The section of the expressway is equipped with a dense network of VSLs, road information signs, CCTV, and weather sensors to ensure effective traffic management.

Despite these safety measures, violations persist. In the first five months of the year, authorities detected 5,433 instances of drivers exceeding the temporarily reduced speed limits. The data underscores the ongoing challenge of ensuring driver compliance, even when safety measures are clearly communicated. The fatality rate for traffic accidents on wet roads is approximately 1.4 times higher than on dry days, emphasizing the critical need for drivers to adhere to reduced speed limits.

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The road was wet, with large trucks kicking up white spray.