What is the main danger of trying to walk near train tracks, bridges, and trestles?

The main danger of trying to walk near train tracks, bridges, and trestles stems from the risk of being hit by an approaching train. Trains can travel at very high speeds and have large blind spots, making it difficult for both train operators and pedestrians to see each other in time to react. Additionally, trains require a significant distance to come to a complete stop, so even if a train is heard coming, it might be too late to move to safety. This risk is compounded by the fact that people often underestimate the speed of trains or do not recognize the danger that being close to the tracks presents. Therefore, being in close proximity to train tracks is extremely hazardous, and individuals should avoid such areas to ensure their safety.