Since Apple Maps often gives the same directions to pedestrians and drivers, the company's pedestrian recon teams are now back on the streets of the United States. The individuals who are part of these teams are wearing backpacks apparently filled with the same cameras and sensors as those found on Apple Maps vehicles.
https://www.notebookcheck.net/Apple-Maps-returns-to-the-basics-via-on-foot-data-collection.365726.0.html