Minister for Transport Paschal Donohoe has confirmed that variable speed limits are to be introduced on the M50 motorway in Dublin.

Mr Donohoe confirmed the measure on RTÉ's Prime Time and said that he has instructed Transport Infrastructure Ireland to proceed with the scheme, which will take up to three years to implement.

The system will adjust speed limits on sections of the motorway according to the volume of traffic on the motorway.

The system will reduce speeds, control traffic flows and in turn the likelihood of collisions on the route.

Prime Time also reported that up to 400,000 unique journeys are now taking place on the M50 every day – well in excess of the number of journeys previously estimated.

The growth in traffic levels on the M50 are the highest in Europe.

New technology to help clear the scene of collisions faster is also to be acquired according to the Minister.

He also ruled out additional multi point tolling in the near future. The measure would, according to an NRA report, reduce traffic volumes on the route.

Mr Donohoe said that he would not be in favour of additional tolls on the M50 until viable public transport alternatives are in place.

He also said forcing traffic off the M50 would result in an increase in congestion and traffic on other smaller regional roads and residential areas along the route.