The Northern Sydney Freight Corridor (NSFC) was a project to improve access between Sydney and Newcastle for freight trains. Frequent passenger services operate on the Main Northern line between Strathfield and Broadmeadow. These passenger services take priority, meaning freight trains can be delayed and are subject to a curfew during peak hours. The Northern Sydney Freight Corridor aimed to reduce delays and increase capacity by providing additional train paths. The delivery of the NSFC projects was managed by Transport for New South Wales, with the exception of the Hexham freight loop which was delivered in June 2012 by the Australian Rail Track Corporation. The final stage was completed in June 2016.