Most buses do at least 4 trips a day, elementary then a middle or high school route in the morning, then repeat that in the afternoon. There are only idle for

Most buses do at least 4 trips a day, elementary then a middle or high school route in the morning, then repeat that in the afternoon. There are only idle for 2 or 3 hours during the day. (Field trips can add another usage in the middle of the day as well)