Don't be surprised if you see the zipper lane deployed Saturday. It's not for motorists' use. It's so the state Department of Transportation can check equipment.  The Department of Transportation is deploying the zipper lane in the westbound lanes of the H-1 freeway Airport Viaduct between the H-1 onramp from Nimitz Highway and the Hickam AFB Naval Base offramp Saturday from 6 a.m. to 10 a.m. for equipment testing.