- Runways are now part of an airport, instead of a separate list - Runways are no longer represented as a boring struct, but as a class of their own. -Improved runway access to unify various runway access methods.
Replace include <iostream> with istream, ostream and/or iosfwd as appropriate. Remove using namespace std and using std::foo from header files.
- Move Dave's original code to a new directory (ATCDCL) so we can recycle the original ATC directory for generic ATC functions.