What construction material has impacted the safety of roller coasters?

Steel has had the most significant impact on the safety of roller coasters.

Wooden coasters were the first type of roller coasters to be built, but they were also the most dangerous. Wooden coasters are susceptible to rotting, cracking, and warping, all of which can lead to accidents.

Steel coasters, on the other hand, are much more durable and can withstand much greater forces. They also don't rot or warp, so they don't have the same potential for accidents as wooden coasters.

As a result of these advantages, steel coasters have become the standard for new roller coasters. Wooden coasters are still built, but they are much rarer than they once were.

In addition to steel, other construction materials that have impacted the safety of roller coasters include concrete and fiberglass. Concrete is often used for the foundation of roller coasters, while fiberglass is often used for the track. Both of these materials are strong and durable, and they help to keep roller coasters safe for passengers.