On-Time Buses on the Rise March 10 - The Jackson Citys bus lines earned their highest on-time records in June, according to a report released by the Department of City Transportation. The departments study, which covers the citys 25 bus lines, shows that the bus lines combined had an on-time arrival rate of 89 percent last month, up from 82 percent in May. The study noted that the highest rate achieved by the bus line last year was only 83 percent in November; on-time rates for all of last year averaged 79 percent. What is the article about?