I’m trying to improve tagging of the industry park Cleantech Park Arnhem (Netherlands) to improve routing. The business park has several gated entrances, most of which are only accessible for employees and common visitors with permanent access badges, app, or ANPR. The main entrance, located here, has a security booth where visitors can retrieve a temporary visitors badge. Along one side of this booth is the entrance to the terrain, along the other side the exit, both gated with a lift gate. To exit the park, visitors have to hand in their visitors badge in the exit gate to exit the park. Visitors are generally always granted access after leaving some contact information and their number plate if traveling by car.
Currently, most gates are marked as private, causing OSMs routing algorithm to choose an arbitrary entrance/exit depending on which one is closest, causing visitors to end up at gates they cannot enter or exit. How would I tag the gates in this case, so the routing algorithm prefers the main entrance and exit gates for routing, while still indicating that the business park is not publicly accessible?