What is the smallest radius possible for a roundabout serving at a T-intersection?
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What is the smallest radius possible for a roundabout serving at a T-intersection?
 
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Smilin
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The operational speed of a roundabout is determined by the geometry of the roundabout, in particular the radius of the fastest and flattest path that a straight-through vehicle may take.
The smallest radius along the fastest path usually occurs on the circulatory roadway as the vehicle curves around the central island. The entry path radius should not be significantly
larger than the circulatory radius, to limit the speed reduction required to safely negotiate the latter curve. Adequate deflection is critical to safe operation of a roundabout, various studies indicating crash frequency and severity increase as the deflection reduces
I honestly have no idea about a T intersection. I think I would just stop, look and goooooooooooooooooo |
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