From Dayton Airport:

Take route 70 East to Route 75 South through Downtown Dayton, past Route 35 interchange. Take the exit immediately following Route 35 (Stewart Street Exit).

Turn left on Stewart Street. Continue on Stewart until you go over bridge.

Turn right onto Patterson Blvd. immediately after crossing bridge. Turn into the NCR World Headquarters. Visitor parking is on both sides of WHQ. Please go to the main entrance and ask the security guard for the RCS person that you are looking to see.