What is the standard brake pipe pressure for freight service?

The standard brake pipe pressure for freight service is 90 PSI. This pressure level is essential for the effective operation of freight train braking systems. It ensures that the brakes function properly and provides sufficient stopping power for heavy freight loads. The 90 PSI standard is widely accepted across the railroad industry, helping to maintain consistency in braking performance among different train operations and carriers.

Understanding this standard is crucial for train dispatchers and rail personnel, as it affects safety protocols and operational decisions. If the brake pipe pressure is too low, it may result in inadequate braking, which can lead to accidents or incidents during transport. Conversely, pressures exceeding the standard might lead to unnecessary stress on the brake systems and could potentially cause mechanical failures. Therefore, adhering to the 90 PSI standard supports safe and reliable freight service operations.