I'm lost on that myself. We don't have access to Apple's data set, so how are we going to improve it? We can complain about an error, but someone with access would need to actually verify the report and enter it. That said, my area seems fine save for a missing new campus for a local university. Hypothetically, adding a new road might work if enough people drive the road where the app doesn't show one, but there are limits to the idea of crowd sourcing.