You can’t change lanes over a single continuous lane line, including those approaching traffic signals.
Continuous lines along a lane are to prevent drivers from changing lanes. The Rules do outline exceptions, which include such situations as:
- Avoiding an obstruction.
- Obeying a traffic control device.
- There is a special purpose lane (bus, bicycle lane etc) you’re permitted to drive in and you’re moving to or from this lane (including part-time lanes).
- The driver is permitted to drive in both lanes because of another rule (for example a turning truck allowed to use both lanes).
For more information see rules 147 and 148 of the Victorian Road Safety Road Rules 2017.
At some locations such as on freeways, long lines with short gaps are used. These markings are to discourage unnecessary lane changes. Due to the repeated nature of the lines and breaks they’re considered to be broken lines.