Digging down rather than building up is seen as a good way to deal with those considerations. Dubai health trip By ferrying people around underground, the new network will reduce surface congestion - instead of snarling things up further. And there is another key benefit of the proposal: passengers will be sheltered from the blistering heat and other harsh conditions. Elon pointed out that everything is much cooler below ground, so passengers won't be stuck in stuffy, sweltering cabins. He added: "If you have bad weather, like let's say there's a blizzard or a sandstorm, well, now nobody can fly. None of these problems exist with underground travel." "We have a demonstration case of this in Las Vegas, connecting the whole city with all of the big hotels and the convention centre, the airport and everything." Olama said the project would ease-up Dubai's "most densely populated areas for people to go from point to point, in a seamless manner". SUN STORIES