Represents a vehicle type in a VRP.
Vehicle types define the characteristics of vehicles in the fleet, including capacity, costs, time windows, and depot assignments.
Summary
Types
@type t() :: %ExVrp.VehicleType{ capacity: [non_neg_integer()], end_depot: non_neg_integer(), fixed_cost: non_neg_integer(), forbidden_windows: [{non_neg_integer(), non_neg_integer()}], initial_load: [non_neg_integer()], max_distance: non_neg_integer() | :infinity, max_overtime: non_neg_integer(), max_reloads: non_neg_integer() | :infinity, name: String.t(), num_available: pos_integer(), profile: non_neg_integer(), reload_depots: [non_neg_integer()], shift_duration: non_neg_integer() | :infinity, start_depot: non_neg_integer(), start_late: non_neg_integer(), tw_early: non_neg_integer(), tw_late: non_neg_integer() | :infinity, unit_distance_cost: non_neg_integer(), unit_duration_cost: non_neg_integer(), unit_overtime_cost: non_neg_integer() }
Functions
Creates a new vehicle type.
Required Options
:num_available- Number of vehicles of this type available:capacity- List of capacity values per dimension
Optional Options
:start_depot- Index of starting depot (default:0):end_depot- Index of ending depot (default:0):fixed_cost- Fixed cost for using this vehicle (default:0):tw_early- Earliest departure time (default:0):tw_late- Latest return time (default::infinity):shift_duration- Maximum shift duration (default::infinity):max_distance- Maximum distance allowed (default::infinity):unit_distance_cost- Cost per unit distance (default:1):unit_duration_cost- Cost per unit time (default:0):profile- Index of distance/duration matrix to use (default:0):start_late- Latest allowed start time (default:0):max_overtime- Maximum overtime allowed (default:0):unit_overtime_cost- Cost per unit of overtime (default:0):reload_depots- List of depot indices where vehicle can reload (default:[]):max_reloads- Maximum number of reloads per route (default::infinity):initial_load- Initial load per dimension (default:[]):name- Vehicle type name (default:""):time_windows- List of{start, end}tuples representing multiple operating windows. Automatically converted to:tw_early,:tw_late, and:forbidden_windows. Mutually exclusive with:tw_early,:tw_late, and:forbidden_windows. Example:[{0, 500}, {600, 1000}]becomestw_early: 0, tw_late: 1000, forbidden_windows: [{500, 600}]. Overlapping/adjacent windows are merged automatically.:forbidden_windows- List of{start, end}tuples for periods when the vehicle cannot service clients (default:[]). Each window must be within[tw_early, tw_late].
Examples
iex> ExVrp.VehicleType.new(num_available: 3, capacity: [100, 50])
%ExVrp.VehicleType{num_available: 3, capacity: [100, 50], ...}