The number of roadway fatalities dropped more than six percent from 2006 to 2007, according to the National Highway Traffic Safety Administration.  The agency reports just under four-thousand Californians died in traffic crashes last year.  That’s compared to more than 42-hundred in 2006.  State officials credit increases in enforcement and public education campaigns for the drop.  Those include more DUI checkpoints and highway signs encouraging people to buckle up.  CHP Commissioner Joe Farrow calls the decrease very encouraging.