Trees over grown in boundery line

The boundary line at the bottom of my garden between myself and council land (there is a pulic footpath behind the properties in this row) has these trees right in the middle. They are quite large at this stage as well as the ivy being overgrown. During strong winds both myself and my neighbours are becoming increasingly worried about them falling and damaging properties surrounding them. I was wondering whether we could look at removing the trees and/or replanting a hedge maybe that will be easier to maintain? Thus putting everyone's minds at rest. Thank you for your time! Clare Bailey