Gardai yesterday launched a campaign to reduce deaths and serious injuries on the capital's roads.
A similar operation last year resulted in the number of fatalities falling by 40pc.
Six in every 10 people killed on Dublin roads are cyclists, motorcyclists or pedestrians.
The figures were released yesterday as gardai identified certain areas in the capital as being the most dangerous for these "vulnerable" road users.
Many of the high-risk locations include streets that experience high volumes of traffic spilling on to narrower roads in which cyclists have to share road space and large numbers of pedestrians cross the road.
These include roads in the centres of suburbs such as Blanchardstown, Coolock, Tallaght and Clondalkin.
And April/May and October/November are of particular concern as there is usually an increase in the number of collisions during these months.
Wet and windy weather and the earlier onset of darkness can also contribute to the rise in incidents.
"We're appealing to motorists entering 50kmh zones to be aware of vulnerable road-users. Pedestrians, cyclists and motorcyclists need to be seen and to watch out for cars," said Inspector Jim O'Driscoll.
The campaign will run for two weeks.