Why Saudi Arabia Is Building a Linear City

Hope it doesnt go the way of dubais man made islands. Good luck saudis. Pretty ambitious stuff.
  I do see how it could be faster. Depending on how they organize the traffic flow. I think of they had something of an autobahn running the length of it with onramps every couple miles.. i could see a way it could be made highly efficient. Idk if theyd implement that design tho. Just because the city is linear doesnt mean it can only have one long road... small circuts of slow speed movement, with onramps to the sort of autobahn i described.
  Of course... with enough infrastructure you could just use high speed public transport. I wouldnt advise eliminating the roads completely tho.