How do roller coaster engineers and park safety manager address the excessive G - forces exerted by roller coaster on its riders?

One G is equal to the normal pull of earth’s gravity on the body. Modern-day ride designers employ a steady stream of advances to create new, unique, and safe amusement rides and attractions. Amusement ride manufacturers applied the industry's biodynamic knowledge (collected over years) as it relates to g-forces to the design and construction of rides to ensure a safe experience. While technological gains have led to the development of bigger and faster rides, overall g-force levels have generally remained the same because riders’ tolerance levels have not changed.