Question

which material is most suitable for making road barrier in Alaska, and why? (See figure below)

Answer 1

Road barriers are basically designed with the thought of minimizing the injury to the vehicle due to its collision with it. As the conditions of the roads at alaska are almost fair therefore their is more chance of speeding up of vehicle and colliding with the road barrier ,Hence to reduce the damage to the vehicles we should use a fitch barrier consisting of sand filled plastic barrels,which act as impact attenuator(device intended to reduce the damage to the vehicles)