HRPA's labour relations content describes grievance mediation as a voluntary, interest-based process in which a neutral facilitates settlement before arbitration. Mediation is specifically noted for saving time and cost by resolving disputes informally and quickly. While expedited arbitration can shorten timelines, it remains a formal, adjudicative process with associated costs; grievance arbitration is the standard, more time-consuming process; and the grievance procedure is the contractual step framework, not a standalone ADR method.