AMMAN — Amman mayor, Yousef Shawarbeh, announced on Saturday that the trial operation of the Amman-Zarqa Bus Rapid Transit (BRT) system will start on May 15.This announcement came as the Greater Amman Municipality (GAM) received 48 King Long buses, with capacities ranging between 62 and 70 passengers, at a total cost of JD7.584 million, the Jordan News Agency, Petra,