From next month, DART passengers will be able to report anti-social behaviour by sending a text.
It's hoped more people will use the new alert system to call out threats, harassment or violence.
Since the start of last year, there have been 128 reported incidents of anti-social behaviour on the DART.
Irish Rail wants to make those kind of incidents easier to flag.
From next month, a text alert system, similar to the one currently used on the Luas, will go live on DART and commuter services.
Irish Rail says it will be a discrete way for passengers to let staff know about any problems on board like threats, harassment or violence.
The company's Barry Kenny hopes it'll encourage people to report any incidents:
"BY having the text alert it is discreet and it allows people to give a report to us without being noticed".
Irish Rail says it will also be putting more staff on trains to crack down on anti-social behaviour.