17 new trains were ordered for the service, labelled "Arrow" at the time.
Its 30 years to the day since Irish Rail launched the Heuston to Kildare commuter service.
17 new trains were ordered for the service, labelled "Arrow" at the time.
They were the first diesel trains in Ireland to operate without a locomotive pulling or pushing carriages.
New stations were also built at Cherry Orchard, Clondalkin, Hazelhatch and Sallins.
Irish Rail has now repainted one of the original trains in their old colour scheme to commemorate the anniversary of the service.

Kfm Obituary Notices
'Hop To It': Locals Asked To Record Sightings Of Common Frog, Amid Low Numbers Recorded
New Online Interface To Reveal Derelict Buildings In Every Area
Revealed: Damning Moone-Timolin Cycleway Audit Cost Several Thousand In Taxpayers’ Money
Not Enough Taxis In Country, Says CCPC Amid Calls For Removal Of Uber Restrictions
Thieves Target Home In Naas On Valentine’s Day - Wedding Band Among Items Stolen
After Barracksfield Fallout, Cabinet To Consider €415k Kildare Home Loan Limit - Up From €360K