Tim the Crash-Test Dummy survived 16 bullets that thudded into ballistic glass inches from his head. The shots were fired in a tight pattern by a pair of onrushing Bucks County SWAT team officers simulating an attack on a transit bus operator.

SEPTA is working to ensure no other bus drivers are shot and killed while operating a SEPTA vehicle as they demonstrate bulletproof glass to be installed in some buses.

SEPTA is planning to roll out bulletproof glass cockpits on buses this spring to protect drivers. Why it matters: This would likely be a first for any public transportation agency in the U.S., according to the union representing bus operators.