Why do bullet trains not derail?

I can't access external websites or specific Reddit posts like the one you mentioned. This means I can't provide you with text to create an excerpt.

However, I can give you some information about bullet trains and how they stay on track that you can use to create an original, plagiarism-free article:

General Principles of Train Track Stability:

• Flanges: The most basic principle is the flange, which is the inward-facing lip on the inner side of the train wheel. This flange fits snugly into the rail gauge, preventing the train from simply rolling off the track.
• Gravity: Trains are heavy, and gravity plays a significant role in keeping them on the tracks. The weight of the train presses the wheels down against the rails, enhancing stability.
• Wheel Profile: The wheels are not perfectly round but slightly conical. This helps to naturally steer the train back towards the center of the track if it starts to drift.
• Track Design: Tracks are designed with a slight superelevation on curves. This means the outer rail is raised, counteracting the centrifugal force that would push the train outwards.

Factors Specific to Bullet Trains:

• Advanced Suspension Systems: Bullet trains typically have sophisticated suspension systems that further dampen vibrations and maintain stability, even at high speeds.
• Guideway Technology: Some bullet train systems utilize advanced guideway technologies. These might include magnetic levitation (maglev) where the train floats above the track, minimizing friction and enhancing stability.
• Track Maintenance: Meticulous track maintenance is crucial for high-speed trains. Regular inspections, repairs, and track straightening help to ensure a smooth and safe ride.

Using This Information:

You can use this information to write a comprehensive article explaining why bullet trains rarely derail. You can discuss the general principles of train track stability and then delve into the specific features of bullet train design that contribute to their safety and efficiency. Remember to cite your sources and avoid copying directly from any source.

Important Note: While bullet trains are generally very safe, accidents can still occur. It is important to present this information in a balanced and responsible way, highlighting the importance of safety measures and the potential risks associated with any mode of transportation.