Many field sciences require data management plans for their research data that specify how the data will be submitted for archival storage. These data come from various devices and are often in proprietary formats that require processing. For example, Trimble GPS devices produce SSF format files but these are not suitable for longterm storage because they are proprietary and require a Trimble software license.
If you worked for a library or the US Forest Service what vector format would you consider the most sustainable for people to use when they contribute data to your archive?
While not an open format Shapefile is a defacto standard and widely readable (in practice this is what people are using). To be clear, these are not archives that are served online they're stored, perhaps burned onto archival DVD.