ScotRail has banned the use of mosquito anti-loitering devices at stations after finding there was a lack of evidence to show their positive impact.
A small number of customers had also raised concerns about their use, which led ScotRail to conduct a full review.
The devices were installed at Hamilton Central, Helensburgh Central and Aberdeen stations as one of a number of measures to combat anti-social behaviour.
Other action to tackle anti-social behaviour included security guards at stations, an increased BTP presence and more Police Scotland patrols in the area.
ScotRail Alliance director David Lister said: “The safety and security of our staff and customers remains our priority, and we continue to work with all agencies – including the British Transport Police, Police Scotland, trade unions, and local authorities – to tackle any anti-social behaviour at our stations.
“These devices were always only a small part of a much wider effort to tackle anti-social behaviour wherever it occurred.
“We always listen very carefully to customer feedback. Following a thorough review of the use of mosquito anti-loitering devices, we have taken the decision to ban them from the three stations at which they are currently installed.”