Starting today March 1st JFK Airport will shut down it's largest runway for construction for four months. They will extend the runway width from standard width of 150 feet to 200 feet. The reason they are doing this is to accommodate larger airplanes like the new Airbus 380 that can carry up to 500 people. Runway 31 is already one the largest in the world. The length of the runway is 14,000 feet. It's so long that its used as a back up runway for the space shuttle. So the question is how does this effect you? Well it effects the whole country as far as delays go. It means when you depart out of JFK & depending on the time of day don't be surprise if you have a two hour taxi delay before takeoff. It also means you should box yourself in with connecting flights. Give yourself plenty of time for connecting & getting to the airport. Four months will come fast & then we will have a more efficient airport when it's all done.