Lineside signs for speed restrictions

Beside the tracks you might have seen signs reading 'W', 'C', 'NS' or 'N'. They are used to indicate to train drivers of upcoming speed restrictions.

The usage of the signs is as follows.

1994 Book of Rules and Operating Procedures, Section 15: Infrastructure Works

Warning
The 'Warning' sign is a yellow board, fishtailed at each end with a red W painted on the face. It is displayed to an approaching train.

The sign is positioned:

(1) 2500 metres from the outer point of speed restriction within the defined RFR territory.

(2) 1200 metres from the outer point of speed restriction in all other areas.

Below the sign a rectangular board with black numerals indicates the maximum speed allowable when passing the Warning board.
Caution
The 'Caution' sign is a yellow disc with a red C painted on the face. It is displayed to the Driver of an approaching train. The sign is positioned 200 metres from the outer point of the speed restriction.

Below the disc a rectangular board with black numerals indicates the maximum speed allowable on passing the Caution board.
Normal Short and Normal
The ‘Normal Short’ sign and ‘Normal’ sign are placed 200 metres and 1200 metres (respectively) beyond the affected portion of track.

Passenger trains of eight vehicles or less and light locomotives may resume normal speed at the ‘NS’ sign.

Trains with distance counters may resume normal speed when the rear of the train has passed the ‘NS’ Sign.

All trains may resume normal speed when the locomotive has passed the ‘Normal’ sign. However, trains in excess of 1200 metres in length must not resume normal speed until the rear of the train has passed the ‘NS’ Sign.

At locations where the area of reduced speed is not affected by a track condition the N and NS Board can be placed on the departure side of the affected area on the same post.

In areas where the line speed is less than 115 kph, such as suburban areas, the ‘Warning’ sign is positioned 1200 metres from the outer point of speed restriction.

When passenger trains are permitted to travel at a higher speed than freight trains, the letters `P' for passenger and `G' (goods) for freight trains is provided, followed by the speed permitted.

'R' reminder boards are used on the V/Line network to remind drivers departing a station they are within the 'warning' zone for an upcoming caution board