The Dublin Port Tunnel has been a massive success since it opened just over ten years ago, taking traffic away from the congested city centre and allowing sharp reductions in journey times.
However, it has to be a matter for concern that, according to video evidence released yesterday, 58 per cent of the 650,000 vehicles using the facility each month at some stage break its 80 km/hr speed restriction.
New cameras which come into operation today will automatically generate a fixed penalty charge for any motorists who exceed the limit by completing the route in less than three and a half minutes.
It must be hoped that the initiative is effective as it is in everyone's interest for safety measures to be fully observed during the short underground trip.
