Because it was not crowded , STCUM at first operated the line weekdays only from 5 : 30 am to 7 : 30 pm .
Because it was not crowded , was circulating three - car trains .
Because it was not crowded , STCUM at first operated the line weekdays only from 5 : 30 am to 7 : 30 pm and was circulating three - car trains .