Safety in motorway tunnel is of paramount importance and absolute priority to us. We will install many safety features to ensure public safety. These features will be highlighted at a latter time. The common question is how safe is the tunnel and will the vehicles in the motorway be submerged during an emergency. SMART is probably the only system that has incorporated the most number of emergency and contingency features in its operation system. As safety of vehicles in the motorway will be of paramount importance, SMART has additional features that are unique over and above the features seen in a normal motorway tunnel. The main features are:
- Automated Flood Control Gates: the water tight gates are installed on either ends of the motorway tunnel (within the stormwater section). In addition similar single flood control steel gates will be installed at both entrances and exits of the motorway tunnel. These gates will be operated with a hydraulic system.
- Cross Passage between decks at 250m intervals: the passage acts as emergency exits during an emergency.
- Ventilation/ escape shafts at 1km intervals: these powerful air ventilators will constantly renew the air and maintain the air quality within the motorway. To protect the ventilation system during the flooding, the system consists of a series of shafts each containing an exhaust and fresh air injector. This design enables the fans to be situation outside the SMART tunnel to create a longitudinal flow in the tunnel between the shafts that permits the air in the tunnel to be continuously renewed and the extraction of the exhaust fumes. The feature also allows for smoke control in the event of a fire.
- Equipped with fire fighting equipment, telephone and surveillance at 1 km interval
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