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ROAD SAFETY IMPROVEMENT WORKS IN THE BLACK POINT AREAS OF THE ROAD AC-523. THE STRETCH BETWEEN KM 10+500 AND KM 11+400. CERCEDA (A CORUÑA).
SPI GALICIA.
Technical Assistance to the Site Management and Coordination of Occupational Safety and Health.
On the 29th of July 2011, COTECNO was entrusted with the Technical Assistance to the Site Management and the Coordination of Occupational Safety and Health for the Road Safety Improvement Works on the Stretch between Km 10+500 and Km 11+400, of the Road AC-523.
On this stretch, there was a junction between Road AC-400 (going to Cerceda and Meirama) and Road AC-523, made of two semicircles, which, because of the high velocity the vehicles were reaching in the area, converted this stretch into a black point.
The works consisted in transforming this junction into a 2-lane 53-m-diameter roundabout, keeping the existing road slope. The solution for the small 35-m-diameter interior island was a circular paving crown and a hydro-sown area, planted with bushes.
The physical yellow-painted concrete islands had the mission of channelling the vehicles correctly.
To reduce velocity on the Road AC-523, before the vehicles coming from the direction of A Coruña reached the roundabout, it was built a painted and marked chicane.