The Fresno County Board of Supervisors voted Tuesday to delay action on the Better Roads, Safe Streets transportation funding measure, approving a study of the proposed half-cent sales tax rather than deciding whether to place it on the November ballot. The board approved the study on a 3-2 vote. Board Chairman Garry Bredefeld, who has previously criticized the proposal, made the motion. Supervisors Nathan Magsig and Buddy Mendes joined him in s…