Even with the prospect of a 60-day cooling-off period being imposed if there is no contract agreement by Sunday, union representatives spoke only of proposals being passed back and forth through a mediator, with no agreement reached on any of the substantive issues - pay increases, worker safety and employee contributions to benefit packages. The law requires the judge to grant the cooling off period if it's determined that a strike or lockout "will significantly disrupt public transportation service and endanger the public's health, safety or welfare." All parties in the dispute, including the unions, agree that a BART strike would be a disaster for the Bay Area, with increased commute times, added pollution from cars and economic damage caused by a walkout. Concerns about better protection for station agents, improved lighting in tunnels and work spaces and changes in workers' compensation policies are among the issues for the unions.