All Chicago trains to carry defibrillators

CHICAGO (WWLP) - The Chicago -area commuter rail agency is installing automated external defibrillators on all its trains, in the event a passenger suffers a cardiac arrest.

Back in 2009, MBTA commuter trains became the first in the country to have them.

22News asked the Pioneer Valley Transit Authority what they have in place in case of an emergency. PVTA Administrator Mary MacInnes told 22News that, while they don't have AED's, each bus does have a hidden button the operator can press, so that a dispatcher can hear what's going on, whether it a crime or medical issue, and contact emergency services.