What is the quickest way for commuters to travel from Dun Laoghaire to Dublin city centre during rush hour?
Six commuters take on the challenge by bicycle, car, bus, train, scooter and on foot.
Traffic jams during the morning commute are commonplace with a growing number of privately owned cars lined bumper to bumper carrying just one passenger.
The average speed of a vehicle in central Dublin at the moment is only eight miles an hour.
Every day 480,000 cars travel through central Dublin and the city can not cope. The daily journey to and from work for thousands of commuters is getting worse and worse.
They clog our streets, they pollute the atmosphere and they don't do the job we expect them to do very efficiently.
The commuters must make their way from Dun Laoghaire to the Ha'penny Bridge in Dublin city centre where they are greeted by Doireann Ní Bhriain.
Each commuter faced their own particular challenges and frustrations along the route but the results are in.
1st: David Judge by train
2nd: Alan Corsini by bicycle
3rd: Noel Carroll runner
4th: John Kelly on scooter
5th: Eoin Lewis by car
6th: John Heuston by bus
This episode of 'PM' was broadcast on 30 January 1979. The reporter is Doireann Ní Bhriain.