Where should I use rail built buffer stops instead of sleeper built ones?

You should use rail-built buffer stops instead of sleeper-built ones in situations where greater stopping power and durability are required.

When to Use Rail-Built Buffer Stops:

• High-Speed or Heavy Traffic Lines – If the track is used by high-speed or heavy freight trains, rail-built stops provide better energy absorption and structural integrity.
• Passenger Terminals & Busy Platforms – In major stations where trains frequently stop at buffers, a stronger structure reduces the risk of overrun incidents.
• High-Impact Areas – If there's a risk of a train overrunning at higher speeds, rail-built stops can handle greater forces compared to sleeper-built alternatives.
• Longevity & Maintenance Considerations – Rail-built stops tend to be more durable, making them suitable for locations where long-term resilience is a priority.

When Sleeper-Built Buffer Stops May Be Enough:

• Low-Speed Sidings & Yards – Where trains move slowly, sleeper-built stops are often sufficient and more cost-effective.
• Light Railway or Heritage Lines – If the rolling stock is lighter, a simpler solution like a sleeper-built stop may be adequate.

If safety and stopping power are your main concerns, rail-built buffer stops are the better choice. However, for low-speed, low-impact areas, sleeper-built stops can offer a practical and cheaper alternative.