Delivery
Parcel and freight flows between hubs and final destinations.
Hub-and-spoke
Parcels consolidate at regional hubs, move between hubs by trunk, then fan out to local delivery. Common for national postal / logistics networks.
doc { cols: 5, rows: 3 }
region @A1:A3 "Regional" color=primary/14
region @E1:E3 "Regional" color=primary/14
icon :sw @A1 tabler/building "SW depot"
icon :sc @A2 tabler/building "SC depot"
icon :se @A3 tabler/building "SE depot"
icon :hub1 @B2 tabler/building-warehouse "Hub W"
icon :hub2 @D2 tabler/building-warehouse "Hub E"
icon :ne @E1 tabler/building "NE depot"
icon :nc @E2 tabler/building "NC depot"
icon :nw @E3 tabler/building "NW depot"
sw --> hub1
sc --> hub1
se --> hub1
hub1 --> hub2 "trunk" width=3
hub2 --> ne
hub2 --> nc
hub2 --> nwLast-mile with returns
A local depot dispatches drivers to customers. Failed deliveries and returns loop back via a dashed path.
doc { cols: 4, rows: 3 }
icon :depot @A2 tabler/building-warehouse "Depot"
icon :drv @B2 tabler/truck-delivery "Driver"
icon :cust1 @D1 tabler/user "Customer 1"
icon :cust2 @D2 tabler/user "Customer 2"
icon :cust3 @D3 tabler/user "Customer 3"
depot --> drv "load"
drv --> cust1
drv --> cust2
drv --> cust3
cust2 --> depot "returned" dash="4 4" color=accentRoute optimisation (before → after)
Naive sequential route vs optimised. Note calls out the savings.
doc { cols: 5, rows: 3 }
icon :a1 @A1 tabler/map-pin "A"
icon :b1 @B1 tabler/map-pin "B"
icon :c1 @C1 tabler/map-pin "C"
icon :d1 @D1 tabler/map-pin "D"
icon :e1 @E1 tabler/map-pin "E"
a1 --> b1
b1 --> c1
c1 --> d1
d1 --> e1
icon :a2 @A3 tabler/map-pin "A"
icon :c2 @B3 tabler/map-pin "C"
icon :e2 @C3 tabler/map-pin "E"
icon :d2 @D3 tabler/map-pin "D"
icon :b2 @E3 tabler/map-pin "B"
a2 --> c2
c2 --> e2
e2 --> d2
d2 --> b2
note @C2 "Optimised saves\n18% distance"Package tracking states
A parcel's lifecycle as a state machine. Each transition is an event captured by the tracking API.
doc { cols: 5 }
icon :created tabler/package "Created"
icon :transit tabler/truck "Transit"
icon :out tabler/truck-delivery "Out"
icon :deliv tabler/home "Delivered"
icon :failed tabler/alert-triangle "Failed"
created --> transit
transit --> out
out --> deliv
out --> failed "no recipient" dash="4 4" color=accent
failed --> out "retry"