Concern has been expressed over the rising number of collisions between cars and Dublin's new Luas light rail system.
The biggest problem seems to be occurring on the Red Line that links Tallaght in south-west Dublin to Connolly Station in the city centre.
Since it opened at the end of September, there has been more than one incident every fortnight between a car and a tram. The victims of two of those accidents needed emergency medical treatment.
Despite the number of incidents, Connex, operator of the €775 million light rail system, has not instructed its drivers to change their procedures.
A spokesperson for the operator explained that all of its drivers use a method of defensive driving that is based on their line of vision, and that, although safety remains a priority, drivers' procedures along the two lines will remain the same.
In total, there have been 10 road traffic accidents since the two Luas lines began taking passengers, ranging from minor damage to vehicles to victims needing hospital treatment.
Such are the concerns over safety that trams running along the Red Line, from Tallaght to Connolly, still operate at 10-minute intervals. It was planned that this would have been increased to five-minute intervals within weeks of it opening, but this has now been delayed and no decision is on the horizon.
Responsibility for the delays on the Tallaght Line and for the growing number of incidents involving motorists has been placed on drivers either misunderstanding or disobeying the new road signs and signals and thereby holding up the service, according to the Rail Procurement Agency (RPA).
"A small number of motorists persist in running red lights and entering yellow boxes when their exit is not clear," said Tom Manning from the RPA.
This delay in introducing the one-every-five-minute service will further anger commuters along the Red Line who were promised a journey time of just 43 minutes. The actual time is now 50 minutes, with some journeys taking much longer.
RPA chief executive Frank Allen explained at the opening of the Red Line that the frequency of the trams would not change until motorists educated themselves as to the increased dangers on this line compared to the Green Line, from Sandyford to St Stephen's Green.
The Green Line, which opened at the beginning of July, has just six road crossings, compared to the Red Line's 35. The Red Line shares the road with traffic over several kilometres.
"The Red Line is a more complex line with so many junctions and interchanges," said Allen. "It's necessary in the interests of safety to limit the frequency to every 10 minutes until it's safe to increase it."
Due to the risk of accidents, the RPA has already installed temporary road signs at some of the more dangerous junctions in an attempt to warn motorists.
"We have looked at anywhere where signage can be improved," explained Manning. "Temporary signs are already in place and we are working with Dublin City Council and the Garda and we will do anything we can that needs to be done to improve safety."