Which brake application requires pulling the emergency brake valve pull cords?

The emergency brake application is specifically designed to stop the train quickly in the event of an emergency situation. Pulling the emergency brake valve pull cords activates this system, allowing for immediate and complete brake engagement. This action overrides any other braking systems in place to ensure the train can come to a halt as swiftly as possible, prioritizing safety.

In contrast, a normal brake application typically involves standard operational controls that do not require the emergency procedures. The full service brake application also leverages the normal braking mechanism but does not invoke the emergency protocols. Regenerative braking is a method that captures energy during braking and uses it to power onboard systems or recharge batteries, and it does not necessitate using the emergency cords. Hence, only pulling the emergency brake valve pull cords triggers the emergency brake application.