“Zipper Merge” pushed by states to reduce construction crash risk
Drivers who get angry when other motorists wait until the last possible moment to merge in construction zones need to reconsider their long-held notions of highway courtesy, transportation officials in a growing number of states are concluding.
Transportation departments in Missouri and Kansas have joined Minnesota and Washington in urging drivers to use the “zipper merge” method when approaching lane closures, most often associated with road construction.