The bar chart illustrates the frequency of incidents and injuries per 100 million passenger miles travelled (PMT) across five categories of public transportation in the year 2002.
Overall, demand response vehicles exhibited the highest rates of incidents and injuries, whereas commuter rail demonstrated the lowest figures in both respects.
Specifically, demand response transport reported a staggering 225 incidents and 173 injuries per 100 million PMT, significantly surpassing the second highest category, which was bus transport with 76 incidents and 66 injuries. This indicates that demand response services experienced more than three times the incidents compared to bus services. Light rail services mirrored the incident totals of bus services, yet they recorded a considerably lower injury rate of just 39 incidents. In contrast, heavy rail services demonstrated fewer incidents, with figures documented at 51 incidents and 35 injuries.
Conversely, commuter rail services were distinguished by their remarkably low occurrence of incidents and injuries, with only 20 incidents resulting in 17 injuries recorded per 100 million PMT. This starkly highlights the relative safety afforded by commuter rail, making it the least problematic mode of transportation in terms of both incidents and injuries when compared to the other categories.