Chapter 14
Hypothetical Rail Train Braking System (Example)
Abstract
This chapter briefly discusses a combination of two safety-related systems in Rail Train Braking. Respective SIL targets and failure rate data are also covered.
Keywords
Air pressure; Emergency braking; Failure rate data; High demand; Low demand; Primary braking
The following example has been simplified and, as a consequence, some of the operating modes have been changed in order to maintain the overall philosophy but give clarity to the example.
14.1. The Systems
In this example we have a combination of two safety-related systems. One is a “high-demand” train primary braking system, together with a second level of protection consisting of a “low-demand” emergency braking system.
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