Why does snow close airports




















De-Icing SLC has three end-of-runway deicing pads that helps to reduce taxi times for airplanes and streamlines the collection of deicing fluid glycol at the airport.

Airlines are responsible for deicing operations for their aircraft to ensure safety for passengers and crew. By the Numbers Salt Lake City Directory. Read More.

Once that minute sweep is finished, much of the time the crews need to head back to the beginning because of snow that accumulates while they were working on the rest of the airport.

Kennedy has 12 miles of very wide runway, plus 45 miles of taxiway and countless miles of vehicle service roads, ramp areas and more. It must all be plowed, inspected and kept safe. That doesn't even count all the parking lots, roadways, terminal access and more on the civilian side. Runways might be closed for 10 to 12 minutes while the trucks are out, and planes will shift to an alternate runway for takeoff and landing.

Then they'll switch, continually rotating planes and plows as long as they can keep up. Airport operations supervisors will follow the crews, ensuring that the runway is safe for aircraft and that no parts of the truck were left on the runway, or that any landing lights are damaged.

They'll make sure that the appropriate amount of liquid product was appliedtoo much can make the surface slippery. Too little does the same. They also use measurement devices to determine the coefficient of friction of a runway. With that data, teams can ensure that they are effectively clearing the pavement and that it's safe for planes to operate. If the weather gets bad enough, an airport might need to plow a single runway every 15 minutes, letting a few planes land in between passes.

Eventually, the plows simply can't keep up and the airport needs to be closed entirely. Jordan Golson is a technology and automotive reporter based in Durango, Colorado.

Email: jlgolson gmail. As for Atlanta, the world's busiest airport has weathered winter much better than Dallas in recent years. But when snow and freezing temps do hit Georgia, itineraries can unravel quickly , as they did during a storm in January Those connecting through ATL when snow is predicted would be wise to rebook if possible.

Of course, many factors besides weather determine an airport's on-time performance, including airborne congestion, ground congestion, navigational technology and the airlines themselves. In December, Delta led all U. Such statistics don't include data for these carriers' regional partners, a critical component. In some cases it seems safe to correlate performance among major airlines and their hubs; it's no surprise Delta was No.

I decided to dig down and compare on-time arrivals and departures over the past five winters at ten major hubs in the Northeast, Midwest and South. Paul and Newark, and eliminated fair-weather hubs such as Houston and Phoenix. What I found was that accepted wisdom shouldn't always be accepted. Exhibit A: Which of these ten major hubs posted the best on-time arrival and departure record in February ? It seems counter-intuitive to suggest MSP in snowy Minnesota, yet it's true.

In recent years, Atlanta—a Delta hub and Southwest stronghold—recorded some of the best on-time performance. But the leaders in on-time departures during recent Decembers were two other northern hubs Delta acquired from Northwest: Minneapolis and Detroit. The worst on-time stats for holiday flying were at Newark, the former Continental hub now operated by United. In years past, geographical advantage paid off for Atlanta and both Dallas airports DFW and Love Field , though on-timers in Dallas plummeted this winter.



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