promote measures to reduce external costs, such as congestion, damage to health and pollution of any kind including noise and emissions;
bearta a chur chun cinn chun costais sheachtracha a laghdú, amhail brú tráchta, dochar don tsláinte agus truailliú de shaghas ar bith, lena n-áirítear torann, agus astaíochtaí;