But it is not clear how this input will affect airport screening procedures, since more than 800 of these machines are already being used at 200 domestic airports.
(Heat does not affect airport operations, but haboobs, the dust storms that are a common occurrence this time of the year, do, as they affect visibility, said Deborah Ostreicher, a deputy aviation director).
The construction group insisted that it had tested its planned bid against the possible impact from disasters that might affect airport revenue, such as the 9/11 terrorist attacks and the SARS outbreak.
In August, the Alliance for a Regional Solution to Airport Congestion filed an appeal under the California Environmental Quality Act, asking elected officials to study how Uber and Lyft would affect airport congestion before approving any permits.
The strikes affect airports and ports, cargo, container and mail.
Delays and cancellations were also affecting airports in the San Francisco area and beginning to ripple through the national air-traffic system.
On Monday, Air Partner said that, despite the frigid weather, its charter flights in Europe were getting airborne from smaller airports that were not experiencing the snarls affecting airports like Heathrow.
"Subway tunnels get affected, airports - both LaGuardia and Kennedy sit right at sea level - and when you are talking about the lowest areas of the city you are talking about the business districts".
Affected airports include Heathrow, Stansted, Cardiff, Dublin, and Glasgow.
The questionnaire format is designed to highlight likely planning and development issues affecting airports.
