
While there is no federal law in Australia that prohibits changing lanes in an intersection, it is illegal in some states, such as Queensland and New South Wales. In Victoria, the rules are referred to as regulations in the Road Safety Act 1986. When it comes to roundabouts, the laws vary across states, but generally, it is not illegal to change lanes if necessary, provided the correct signals are given. However, it is illegal to cross a solid line, and you must give way to vehicles in the lane you are moving to. While changing lanes in an intersection may be legal in some states, it is generally safer to do so before or after passing through to avoid confusion and potential collisions.
| Characteristics | Values |
|---|---|
| Legality of changing lanes in an intersection | It is not illegal to change lanes in an intersection in Australia, but it is unsafe and not recommended. |
| Changing lanes in a roundabout | It is not illegal to change lanes in a roundabout, but you must not cross a solid line. |
| Changing lanes in Queensland | It is illegal to change lanes in an intersection in Queensland. |
| Changing lanes in New South Wales | It is illegal to change lanes in an intersection in New South Wales. |
| Changing lanes 15 meters from an intersection | Illegal. |
| Changing lanes without indicating | Illegal, with a fine of $345, a $92 Victims of Crime Levy, and two demerit points. |
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What You'll Learn
- It is illegal to change lanes in an intersection in Queensland, New South Wales, and Victoria
- Changing lanes in a roundabout is illegal in some states
- It is illegal to change lanes over a single continuous lane line
- You can change lanes before and after an intersection
- You must indicate your intention to change lanes

It is illegal to change lanes in an intersection in Queensland, New South Wales, and Victoria
In Queensland, New South Wales, and Victoria, it is illegal to change lanes in an intersection. According to the Australian Road Rules, you must stay in your marked lane when turning right or left through an intersection to prevent collisions. This means that you cannot turn left from the right side of the road, or vice versa, unless it is marked on the road. It is also illegal to continue straight ahead from a marked turning lane or to disobey road markings.
In the case of a multi-lane roundabout, it is necessary to change lanes before exiting. You must give way to vehicles in the lane you are moving to and indicate your intentions. It is illegal to cross a solid line, and you must exit in accordance with any marked arrows in the lane you entered from. For example, if you are in the left lane, you can only turn left or continue straight, whereas if you are in the right lane, you can continue straight, turn right, or perform a U-turn unless marked arrows indicate otherwise.
While there is no specific law stating that changing lanes through an intersection is illegal, it is generally unsafe to do so. It is recommended to change lanes before or after passing through the intersection to avoid confusion for other drivers. When changing lanes, it is important to use your indicators and give sufficient warning to other drivers.
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Changing lanes in a roundabout is illegal in some states
In Australia, changing lanes in a roundabout is illegal in some states. While the rules vary across states, the general guideline is that you can change lanes in a roundabout but only in certain circumstances. For example, in Western Australia, if you need to change lanes after entering a multi-lane roundabout, you must wait until it is safe, signal a move into the correct lane, and indicate your exit. In South Australia, it is not illegal to change lanes in a roundabout, but you must indicate your intentions and give way to traffic already in the lane.
In New South Wales, it is illegal to change lanes 15 meters out from an intersection or while in a roundabout. The road rules state that you must follow the marked arrows in the lane you enter from when exiting a roundabout. This usually means you can only turn left or continue straight from the left lane or turn right or make a U-turn from the right lane unless the marked arrows indicate otherwise.
It is important to note that changing lanes through an intersection is generally not recommended, even if it is not explicitly illegal in some states. This is because it can be confusing for other drivers and potentially unsafe. The Australian Road Rules state that you should not proceed through an intersection unless you can see clearly and are certain there is space for your car on the other side.
When changing lanes in general, it is essential to follow safe driving practices. This includes using your indicator to signal your intention to change lanes, checking your mirrors and blind spots, and giving way to vehicles already in the lane you are moving to. Failing to follow these rules can result in fines and demerit points.
While the legality of changing lanes in a roundabout may vary across Australian states, it is important to prioritize safety and follow the recommended driving practices to ensure a smooth and collision-free experience for all motorists.
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It is illegal to change lanes over a single continuous lane line
While there is no law specifically stating that changing lanes through an intersection is illegal in Australia, it is illegal to change lanes over a single continuous lane line. This means that you cannot change lanes if it involves crossing a solid line. Lane markings present before an intersection continue through the intersection, and you are not to cross them.
When turning left or right at an intersection, you must follow the road markings. If there are no markings, you must keep to the left or right of the road, respectively, as you turn. It is illegal to continue straight ahead from a marked turning lane or to disobey road markings.
In roundabouts, it is illegal to cross a solid line. You must follow any marked arrows in the lane you are in. Typically, you can only turn left or continue straight from the left lane, and you can turn right or make a U-turn from the right lane. However, in some cases, it may be necessary to change lanes before exiting a roundabout.
When changing lanes, you must give way to vehicles already in the lane and indicate your intentions. Failing to indicate or give sufficient warning when changing lanes can result in a fine, a Victims of Crime Levy, and demerit points.
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You can change lanes before and after an intersection
While it is not illegal to change lanes through an intersection in Australia, it is generally safer and recommended to change lanes either before or after passing through the intersection.
When changing lanes before or after an intersection, it is important to follow the same rules as with other lane changes. This includes giving a sufficient warning to other drivers by using your indicators. Failing to indicate or provide adequate warning when changing lanes can result in a fine, a Victims of Crime Levy, and demerit points. It is also important to remember that you must give way to vehicles already in the lane you are moving into.
In some cases, it may be necessary to change lanes before exiting a roundabout. For example, if there are two or more lanes of traffic turning right, you usually cannot change lanes while turning. However, it is important to note that it is illegal to cross a solid line when changing lanes in a roundabout.
Additionally, when turning left or right into a road, you must give way to pedestrians crossing that road. It is also illegal to continue straight ahead from a marked turning lane or to disobey road markings.
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You must indicate your intention to change lanes
While there is no law explicitly prohibiting lane changes at intersections in Australia, it is generally unsafe and discouraged. When changing lanes, you must indicate your intention to do so, giving sufficient warning to other drivers. This rule applies to lane changes at intersections as well as anywhere else on the road.
In the state of Queensland, for example, it is illegal to change lanes at an intersection or while going through a set of lights. Similarly, in New South Wales, you cannot change lanes through an intersection. These rules are in place to prevent collisions and ensure smooth traffic flow.
When turning left or right at an intersection, you must follow the road markings and turn from the appropriate lane. If there are no lane markings, you must still follow basic guidelines. When turning left, keep to the left side of the road you are turning into. When making a right turn with no markings, pass as near as possible to the right of the centre of the intersection.
In the case of multi-lane roundabouts, lane changes are permitted but only under certain circumstances. You must follow the marked arrows and lane markings, indicating your intentions and giving way to traffic already in the lane. It is illegal to cross a solid line on a roundabout, and you may be fined and receive demerit points for doing so.
To summarise, while lane changes at intersections are not explicitly illegal in Australia, they are generally unsafe and discouraged. It is important to indicate your intention when changing lanes and follow the relevant road rules and markings to ensure safe driving.
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Frequently asked questions
It is illegal to change lanes in an intersection in Queensland and New South Wales. However, there is no federal law in Australia that prohibits this action.
Changing lanes without indicating or giving sufficient warning can result in a $345 fine, a $92 Victims of Crime Levy, and two demerit points.
While changing lanes in a roundabout is generally allowed, it is illegal to cross a solid line. When entering a roundabout from a multi-lane road, you must follow the marked arrows and exit accordingly.
When changing lanes, it is essential to use your indicator to signal your intention to other drivers. Check your mirrors, look over your shoulder for blind spots, and merge smoothly into the new lane at an appropriate speed.






































