We know how important it is to have a guide rail on turnings. When big trucks or cars lose their control and hit the guide rail its important to have a strong guide rail even on the bridge if the guide rails and not strong enough it may cause a big accident and vehicle can roll over from the road. so instead of focusing on guide rail, I found if we can put rollers on guide rail colors it will divert the impact force into motion in the same direction and more chance to save a vehicle from the big accidents.
Idea No. 181