Detection of CO and NO2, and air quality control and fire protection in road tunnel
The Polopos tunnels are part of the stretch of the Mediterranean Highway, A-7, located between the Polopos and Albuñol connections, belonging to the Nerja-Adra itinerary of the Highway, that will connect, once fully completed, Algeciras with Girona.
The project is composed of two tunnels of 525 and 650 meters, whose general characteristics are 8.50 meters of platform and two sidewalks of 0.75 meters, a structure gauge of 5 meters, upper radius of 1,685 meters and a gradient lower that 3%.
Both tunnels are protected with SONDELTOX gas detectors, designed and manufactured by DURAN ELECTRONICA, and anemometers, opacimeters, meteorological stations and linear fire detection, distributed by DURAN ELECTRONICA.