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melaniewalsh committed Jan 13, 2025
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2 changes: 1 addition & 1 deletion website/posts/np-data/index.qmd
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Expand Up @@ -337,7 +337,7 @@ Like Voyageurs NP in Minnesota, Everglades NP modifies their raw visit data in m

What's more, the devices that the NPS uses to count visits---such as pneumatic tube counters or induction loop counters (magnetized coils of wire that are installed under a road, and that "trip" when a vehicle passes over them)---sometimes *break*.

![An example of an induction loop, installed beneath a road (making it harder to detect when it breaks!).](https://upload.wikimedia.org/wikipedia/commons/8/8c/Inductance_detectors.jpg){#fig-induction width="300"}
![An example of an induction loop, installed beneath a road (making it harder to detect when it breaks!).](images/Inductance_detectors.jpg){#fig-induction width="300"}

For example, [according to the NPS data logs](https://irma.nps.gov/Stats/SSRSReports/Park%20Specific%20Reports/Monthly%20Visitation%20Comments%20By%20Park?Park=CRLA), the induction loop counter at one of the main entrances at Crater Lake National Park in Oregon broke in 2012 and wasn't repaired for at least a year:

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