Safety Features
There are 15 pedestrian crossing points (PCPs) situated 250 m apart with emergency telephone and fire fighting niches. Additional fire hose reels are located 125 m from each niche. There are four vehicle crossover points at 1 km intervals comprising a lay-by plus emergency and recovery area. These are located under Shantalla, Collins Avenue (site of the original launch shaft), Marino and Cloisters.
GSM telephone and FM radio coverage is carried into the tunnel with break-in facilities over public broadcasts in the event of an emergency.
There are 420 cameras attached to the vehicle management system (VMS). A maximum speed limit of 80 km/h (50 mph) is in place and HGVs are prevented from using the outside lane.
Overheight vehicles are detected up to 3 km from the tunnel portals and automatic signage is then deployed to stop the vehicle. If necessary, barriers can be lowered to protect the portals.
Read more about this topic: Dublin Port Tunnel
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