The first bar chart compares the rates of bus arriving circumstances of a US bus operator in five different years in terms of two aspects: Actual arriving on time and target arriving time, while the second bar chart shows the quantities of passengers’ complaints in the years of 1999, 2000, 2001, 2002 and 2003, respectively.
Regarding the performance of bus arriving on time, in 1999, with an aim of 80% of buses should on time, this bus company had the most excellent performance in these five years, which was over 80% acutual on time rate. Furthermore, the actual on time rates in 2003 was significantly high compared with targeted rate, at approximately 78%, which was over twice higher than the targeted rate. In 2000 , however, is the only year when the bus company did not reach their target of bus arriving on time. These figures in 2001 and 2002 were relatively similar, with the rates of around 42% for bus actual arriving on time and the rates of 40% for targeted arriving on time.
For the numbers of complaints for passengers, the figures shows overall an upward trend, with the number of around 60 in 1999 rose to over 100 in 2003. However, between 2000 and 2001, the number of complaints decreased by approximately 10, then rose again from 2001 and reached the highest point in 2003, with approximately 130 complaints received.