There were 400 road clearways and 300 road closures. Many infrastructure upgrades needed to be completed in order to implement the Clearways plan. Constructed as a part of the CityRail Clearways Project, a second turnback facility was built. In 2013, the quadruplication was extended to Revesby as part of the Rail Clearways Program. Under the CityRail Clearways Project, Macarthur received an upgrade. However, that part of the Clearways Project was cancelled in November 2008. Red route clearways are signed but there are no lines on the road. The Clearways Programme was intended as the next step in improving the network. A second Rail Clearways project involved quadruplicating the section of track between Kingsgrove and Revesby. The "clearways" feed the existing lines through the Sydney Central Business District. Clearways are used on congested roads where there is no room for additional traffic lanes.