{
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{
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},
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{
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{
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{
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{
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]
},
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{
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{
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{
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{
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]
},
"ramp_closed": {
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{
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{
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{
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"score": 1.3548812217797126
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{
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"score": 0.8200509846483162
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{
"resource_id": "road_E05_TO",
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"score": 0.04914022382872471
}
]
}
},
"key_assumptions": [
"Capacity-1 ramp E03 and pit-access roads E07/E09 are modelled as paired bidirectional resources (one truck on the physical road regardless of direction). Crusher approach E05 keeps per-direction locks.",
"Loading and dumping times follow Normal(mean, sd) truncated to [0.1 min, mean + 5 sd].",
"Travel-time noise is multiplicative Normal(1.0, cv=0.10) per truck per edge per traversal, with effective speed floored at 10% of edge max_speed_kph.",
"Routing uses pre-computed travel-time-weighted shortest paths (NetworkX Dijkstra). Loader choice is dynamic via nearest_available_loader with shortest_expected_cycle_time tiebreaker.",
"Throughput is attributed at dumping_ended events at the crusher only; in-progress dumps at shift end are not counted.",
"All trucks start at PARK at t=0 and are dispatched simultaneously."
],
"model_limitations": [
"No truck breakdowns, refuelling, shift handover, or operator skill variation are modelled.",
"No weather, blasting, or grade-resistance effects on travel speed beyond the loaded/empty speed factor.",
"Dispatching does not preempt or re-route mid-cycle; loader choice is fixed at cycle start.",
"Trucks finish their current state transition at shift end (no mid-traversal kill); only completed dumps count toward throughput.",
"Initial dispatch from PARK is simultaneous, which may overstate loader contention in the first cycle relative to staggered start-up in practice."
],
"additional_scenarios_proposed": []
}results/summary.json
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