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// This is a library of traits that can be used // to build the core of transportation systems use lib:AbstractionOccurrence.ump; // A route such as a flight or bus route trait Route { routeID; // generic ID for all runs on this route, e.g. bus route number the public sees * -- * Stop; } // A run pattern at a particular time of day that // is repeated on multiple days trait RegularlyScheduledRun { isA Abstraction; runId; // e.g. a flight number / Bus systems tend to hide this from public String plannedDaysOfWeek; // e.g. "135" for Mon, Wed, Fri * -- 1 Route; Boolean forwardDirection; // only relevent if routeID is same in both directions 1 -- * ScheduledStop; // contains the times of the stops in order; not all runs may stop at all stops on route. } // A stop on a particular regular run trait ScheduledStop { * -- 1 Stop; Time expectedArrivalTime; // null for departure only Time expectedDepartureTime; // May be same as arrival time for busses. Null for arrival only } trait Stop { stopName; // e.g. Airport, bus station etc. } // People can book on this for flights. It can be late or cancelled trait ActualRun { isA Occurrence ; Date runDate; Boolean isCancelled; * -- 1 Vehicle vehicleUsed; } // Specific plane, bus, etc. trait Vehicle { vehicleID; }
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