At 18:45, the crew called Cincinnati tower for an ETA of 19:05.
One of the more common uses is in public transportation where the movements of trains, buses, airplanes and the like can be used to generate estimated times of arrival depending on either a static timetable or through measurements on traffic intensity.
However, this second effort seems to be taking a long time, and no ETA or further news about the project has been given by its developers, so it might not be made public soon.
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