Nearly a third of Victorians feel unsafe using public transport at night or walking around their neighbourhoods after dark, according to new figures likely to stoke debate about public safety.

A week after international student Aiia Maasarwe was killed walking from a tram stop to her home, Productivity Commission data shows an increase in the past four years in the percentage of Victorians who do not feel safe at night.

Tram stop 61 on the Route 86 where Aiia Maasarwe is believed to have alighted before her death. Credit:Paul Jeffers

Melburnians attending a series of tearful vigils in the wake of the brutal killing of the 21-year-old Israeli citizen last week called for safety improvements - better lighting and more protective service officers - for women travelling alone at night.

Bundoora 20-year-old Codey Herrman has been charged with Ms Maasarwe's rape and murder.