Yes, it is legal in most states. Just move into the turn lane and make sure there is no oncoming traffic. Wait till there is an opening, and accelerate into traffic. This is not a big deal, if done correctly.
When you are in the far right lane, your turn should put you in the far right lane. Then, when safe, you can merge into the left lane to pass. This is for a right turn from a 2 or 4 lane onto a 2-or higher lane road.
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No, the center turn lane is meant for making left turns and should not be used for merging into traffic.
200 feet
I don't know about England, but, there should be a warning sign or arrows indicating that a lane is going to merge. Also, the person who is there first should have the right way.
Don't turn the wheel.
When merging from the acceleration lane, you should match the speed of the cars on the main highway while looking for a safe gap to merge into. Use your turn signal to indicate your intention to merge. Once you find a suitable gap, merge smoothly and cautiously into the flow of traffic.
You can merge into the bike lane when it is safe to do so, typically when there are no cyclists present or when you are preparing to make a right turn. Always check your mirrors and blind spots to ensure it's clear before merging. Additionally, you should not block the bike lane or impede cyclists' movement. It's important to signal your intentions to other road users as you merge.
Use your indicator signal to advise vehicles on the expressway that you intend to merge. Match your speed with the vehicles in the slow lane, find a gap in the traffic and enter the slow lane.
In most states, you can legally travel up to 200 feet in a left turn center lane before merging back into the regular traffic lane.
Only long enough to execute a legal turning maneuver, or merge into traffic.
Merge into the nearest left lane when it is safe to do so.