It is a stretch of Sydney's rail network that drives many of those who live along it to despair.

The loud screeching and squealing from trains rounding the tightest curves on Sydney's rail network has worsened since more services were put on several months ago, residents say. Each day, the North Shore Line clocks up more than 450 services from 4.30am to 1am.

At Wollstonecraft station, noise from the trains often surpasses 100 decibels on the platforms – the sound of a jackhammer – resulting in many staff wearing ear plugs to block out the worst of the severe screeching. Noise from a rock concert typically ranges from 108 to 114 decibels.

Local residents Brian McGlynn, left, Ian Links and Stefano Palomba at Wollstonecraft station. Credit:Louise Kennerley

Residents say the noise is debilitating, preventing them from using balconies and other outdoor areas. Even if windows are closed, it is difficult for some to hear their TVs when trains pass.