...just like there is nothing illegal about staying to the right so you can cut into a line of traffic. That does not make it the right however.
Now to REALLY hijack things...
I am a big fan of the zipper merge technique (which is what people are supposed to do) in dense traffic situations. If the right lane is merging and ending, the idea is that every other vehicle merges at the end of the lane. This is orderly and prevents extending the log jam further back.
People who merge early (and often come to a full stop to do so), sometimes with 1/4-1/2 mile to the end of the lane, cause ripple effects behind them. This can extend traffic jams for a mile or more behind them.
If you refer to the on-ramp/off-ramp situation, the key is to avoid joining the main lanes at the very first opportunity. Usually people do this and just stop, blocking the lane. This not only blocks the people trying to get on, it blocks people trying to exit, which creates ripple effects in the main artery. Keep going and make better use of the 1/4-1/2 mile long lane. Read the traffic in the main lane and look for a spot where you have the least chance of blocking the merge lane. This may happen midway, or it may happen at the end, but absolutely don’t merge at the very beginning!
My two cents...
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