3 ms·
If ATC says you're clear to cross the runway and then you glance down and the screen shows a plane projected to cross directly in front of you in 10 seconds you
by fc417fc802 8mo ago
If ATC says you're clear to cross the runway and then you glance down and the screen shows a plane projected to cross directly in front of you in 10 seconds you'd probably think twice, right? This hypothetical cheap appliance has GPS and a compass and probably even a camera feed facing forward. It isn't a difficult technical problem to calculate the time offset at which the object traveling along the crosscutting path will pass in front of you.
> The difference between "hold short at runway 22" and being on runway 22 is much less than 30 seconds in some cases.
What is the typical minimum temporal separation? I would have expected at least 45 or 60 seconds given the cost of a plane and the imminent threat to life.
- ceejayoz 8mo agoSo, it does appear I was correct here - it's a difficult thing to solve. https://www.nbcnews.com/news/us-news/investigators-search-answers-deadly-laguardia-crash-rcna265118 https://www.nbcnews.com/news/us-news/investigators-search-an... > Jennifer Homendy, chairwoman of the National Transportation Safety Board, said at a news conference Tuesday that the airport uses a safety system called ASDE-X to track surface movements of aircraft and vehicles. > "ASDE-X did not generate an alert due to the close proximity of vehicles merging and unmerging near the runway, resulting in the inability to create a track of high confidence,” Homendy read from an analysis of the system’s performance.