Does offsetting of turn lanes provide an additional safety benefit?
Yes. Research has generally shown that providing offset left turn lanes, compared to left urn lanes which are not offset, provides an additional safety benefit, particularly where there is a left-turn crash problem at an existing intersection with a non-offset LT lane and there are sight obstructions caused by opposing left turn vehicles. Although research on offset right turn lanes has not been as extensive, the safety principals are the same and therefore a benefit can be expected for offsetting right turn lanes, also.
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