The Williamstown Line shares tracks with the Werribee Line between Flinders Street and Newport. The line is double track throughout, except for Williamstown station, and provided with automatic block signalling. There are no intermediate terminating facilities. Stabling facilities are provided within the grounds of the Newport workshops.
Services
Trains on the Williamstown Line stop all stations. There are slight variations to this service depending on the day of the week and the time of day. The Williamstown line is the only metropolitan line with regular services that never serves Flagstaff, Melbourne Central and Parliament stations.
Local
Trains stop all stations between Flinders Street and Williamstown and operate direct via Southern Cross during the daytime on weekdays. During the morning peak city-bound trains skip South Kensington. The same applies for outbound trains during the evening peak. On weekends, Late Nights and as part of the Night Network, trains operate as stopping all station shuttles between Newport and Williamstown. Passengers travelling to and from the city will need to change at Newport. These shuttles are operated as 3 car train-sets. Inbound shuttles terminate on platform 1 at Newport and are stored in a siding on the city side of the station. The siding allow trains to reverse and form outbound Williamstown shuttle services departing from platform 2.
◻ Host Station - Usually staffed during Morning peak, however this can vary for different stations on the network.
Legend - Stopping Patterns
● - All Trains Stop
◕ - Trains usually stop, except for city-bound trains in the morning peak and outbound trains in the evening peak
History and Future
Although it is now operated as a branch from the main Werribee/Geelong line at Newport, the line was originally built from the city, with the Geelong line being the branch. The line officially opened in January 1859, but the section between the vicinity of the Newport workshops and Williamstown Pier was in use by Geelong-line trains from October 1857. The line was electrified in August 1920, but little further change to the infrastructure took place until the section from Williamstown to Williamstown Pier closed in March 1987. Automatic Block signalling was provided in August 1997. With the electrification of the Werribee line in 1983, many of the Williamstown Pier services became shuttle services from Newport instead of through services from Flinders Street. The level crossing at Ferguson Street, adjacent to North Williamstown Station, is currently earmarked for removal by the Level Crossing Removal Authority. The crossing is expected to be fully removed by 2022. There is a community proposal to replace the Williamstown Branch Railway line with a "Micro Public Transport Tunnel Loop System" which would obviate the need to replace the Ferguson St crossing. This is because the 3.6 m diameter tunnel loops using demand-activated 16 seater Autonmous Electric Vehicles would be constructed 10 to 20m underground and not interfere with ground level services/activities. The historic railway stations could be used as entry points for AEV lifts down to tunnels. An advantage would be that the trains-per-hour on the Werribee Railway line could be 8 per hour from Newport instead of the current 5 per hour.