Dispatch Operations alarm assignment planners use Box-area Automated Run-card Builder (BARB) a commercial software program developed for FDNY, to determine unit assignments for each box location. Assignments were previously made by straight-line distances with allowances for major variants such as rivers and bridges. BARB calculations are based on street networks, road speeds, one-way streets, time of day, road/bridge closures, and temporary unit relocations as well as distance. Highway boxes have not been reprogrammed in order to preserve bi-direction responses. All companies were given opportunity to review proposed changes. BARB is operational in Staten Island, Bronx, Manhattan, and Queens; Brooklyn has been planned for late January, and may be in place now.