<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.hapo awali ilifanyika katika asia na ulaya, haki ya uic highspeed itafanyika philadelphia, usa, mnamo julai 2012-10, 13.  <response>: after previous editions in europe and asia, uic highspeed 2012 will be held in philadelphia, pa, usa on 10-13 july 2012. 