Pretty amazing. May be they should start with only the trucks first to see if it works.

Shifting the Right of Way to the Left Leaves Some Samoans Feeling Wronged - WSJ.com

APIA, Samoa -- Sometime in the early morning hours of Sept. 7, residents of this small Pacific island nation will stop their cars, take a deep breath, and do something most people would think is suicidal: Start driving on the other side of the road.