Some steering questions seeing that this is a research thing:
- What are the methods in which such data can be recorded and collected?
- What are legalities surrounding each of these methods?
- What kinds of entities have capability to collect such data?
- Are there any entities under above list that are known to be doing this collection?
- Are there any entities from above list that might be able to share this collected data with you?
- If none of above are directly openly sharing, what do you need to do to get them to share it with you?
- If above questions could not be answered satisfactorily, then a more basic question: Does the data exist at all in the way it's originally required and under terms that you can obtain it?
- If not, then would it be worth to pivot from locating source of needed data to creating / collating / collecting needed data?
- What would one need to do it? Technology, resources, time, know-how?
- Are there others looking for the same / similar things as you are, and are there opportunities to form alliances for a common goal?
- If so, then what is it that you can bring to the table?
- Is it better to initiate such an effort, or join into one that is already ongoing?
Myself I've got no clue, but this might help you take steps towards your goal. Oftentimes I've observed that the thing needed comes into existence only after questions for it are asked and then gears are switched from expecting a result to participating in forming it. All the best!