This data is provided by adsb.lol, who collect it from volunteers who receive and share this data. If you're interested in improving coverage near you, you can learn how to feed data to them here.
Our hope is that this data is useful for two groups of people:
Yes! Based on hotspots observed at 88NV in 2022, recommended VFR procedures were adjusted, leading to a ~70% reduction in LOS events in the affected areas 2023, 2024, and 2025.
Analyzing all this data is a big job, so initially only the busiest untowered airports in the US are covered. If you want to see an automated analysis for another airport, search for it, then you will be prompted to submit it for analysis. If you are interested in a longer time-range and more detailed report, contact us.
This hasn't been the focus so far. Plenty of operations that are common at towered airports will show up in this analysis. A few towered airports are analyzed at the bottom of the home page. If you have thoughts on this, get in touch.
This is almost certain to happen given the incomplete nature of the data. But if you see something that you think could be improved algorithmically, by all means get in touch.
The data is collected by volunteers and they may not have good reception of the area that you're interested in. See "How is this data collected?" above for how to improve it.