More than a year after the first train ran along elevated rail lines in Melbourne's south-eastern corridor, residents say "sky rail" has increased quality of life and added to the vibrancy of local communities, and realtors say fears of a property price plunge have been assuaged.

Stretches of rail bridges between Caulfield and Dandenong and Cranbourne and Pakenham were part of a $6.6 billion policy to remove 50 level crossings successfully taken to the 2014 state election by the Daniel Andrews-led Labor opposition.

Dianne Liddell and her daughters Lillie Liddell, 2, and Florence Liddell, 4 months, under 'sky rail' in Carnegie. Credit:Joe Armao

But the plan was fiercely opposed by many residents. Some feared commuters would peer into their homes from above, while others had objections to what was described as a visual monstrosity.

But 15 months after the first carriage rolled through, even some of those most strongly opposed have come around.