What is the typical brake cylinder pressure developed through Quick Service?

In train operations, Quick Service is an emergency or rapid brake application method, designed to provide a swift response to changing conditions on the track. The typical brake cylinder pressure developed through Quick Service is crucial for ensuring a rapid and effective reduction in train speed.

The value of 10-12 psi is significant because it represents a balance between improving stopping power while maintaining control. This pressure range is effective enough to engage the brakes adequately and achieve a quick response without causing excessive wear or potential damage to the braking system or the train itself.

The ranges lower than this may not provide sufficient stopping power in emergencies, while pressures above may lead to more abrupt stops that could compromise passenger comfort and safety. Understanding the importance of this pressure range is essential for effective train handling, especially in scenarios requiring a Quick Service application.