The African union headquarters are already located in Addis Ababa, in the united nations economic commission for Africa is also headquartered here.

非洲联盟的总部已经坐落于艾缔思·阿巴巴，非洲的联合国经济委员会的总部也在这里。

It invites the UN Department of Economic and Social Affairs, in collaboration with the UN regional economic commissions, to facilitate the observance of World Sustainable Transport Day.

它邀请联合国经济和社会事务部与联合国各区域经济委员会合作，推动世界可持续交通运输日的庆祝活动。