There schould be one way roads for more komplex roadsystems.
Also i would like to make different bus stops for arrival and departure. so that in one area of the terminal passangers are being unload while in a different area there is only a pick up. maybe not made as different bus stops but as a al little checkbox like with the stands (GA and commercal)
One way roads/terminal/airways can be done just like the conveyor system. It’s already coded in the game, a change of tile sets and rules for traffic as apposed to bags. Pretty much any area needing 1 way management could use the system. No need to code something new, just modify existing for new situations.
Since we have now remote stands and airside shuttle busses, let me tell you that it is annoying that arrival busses wait for departure busses to finish the boarding and that arrival passenger enter terminal through random gate door.
My suggestion would be to add a switch for the stops Arrival/Departure, so we can design an extra bus stop in more “arrival” part of the terminal, close to baggage claim etc.