A proposal is taking shape to divert frequent users of emergency rooms into a substance abuse treatment facility, instead. Rhode Island’s Department of Behavioral Healthcare has pitched a pilot program for Providence that would transport drunk or high people to a sobering center. Staff there could then connect them with more treatment or housing and job services. Dale Klatzker heads The Providence Center, one of the state’s largest community mental health organizations. He says marshaling the resources to address this social problem will be difficult.