DURHAM (WTVD) -- NCDOT and North Carolina State researchers are studying the effectiveness of the "zipper merge." The rather unique sign was installed 2 weeks ago where NC 147 meets southbound I-85.
Zipper merging is still a tough sell for many in Washington who believe drivers moving into traffic correctly are simply cutting the line. Maybe Washington state needs to take a page from Montana to ...
COLORADO, USA — Zipper merging needs better signage so badly that the Federal Highway Administration commissioned a study to determine if specific signage would get more drivers to zipper merge and ...
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