Per Customer Service Centre, City of Sydney:

"Erskineville Rd Newtown is a Roads and Maritime Services (RMS) - formerly Roads and Traffic Authority (RTA) - road . All RMS roads are maintained by the RMS which is under the authority of the New South Wales Government. Please report this issue to the RMS on their website: http://www.rms.nsw.gov.au/cgi-bin/index.cgi?action=feedback.form : this way they can contact you to update you on the progress of the work."