Bridges are not only super expensive, but require much land for the approaches. You're looking at 40 acres at least for a RB like that. Wouldn't fit in TV.
Problem is people making left turns from the right lane. They stay in the right lane all the way to the third exit, and if someone is in the inside lane expecting them to exit at no2, you have a problem. They think its easier because they don't have to change lanes. The system works if people follow the rules. Of course there's many who don't - give them a ticket - word will get around -fast.
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