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Transit Optimization
Constraints
Inventory flow problem formulation:
- Conservation of passengers & vehicles moving between nodes at each time step
Passenger movement
- constrained only by vehicle capacities
- may transfer freely at any node (!)
Vehicles constrained by:
- connectivity matrix
- station / waypoint node capacity
- max fleet size limit
Arbitrary constraints somewhat easy to add:
- e.g. “max vehicles on a link segment”
- e.g. “max capacity on a group of waypoints”
Notes:
Vehicle capacities are constant per layer
different max occupancies must be represented by separate layers.
Station / infrastructure constraints provided by input tables