LogisticsLab https://logisticslab.io/posts/ Technical notes, research reflections, and updates from LogisticsLab. quarto-1.10.18 Mon, 27 Jul 2026 00:00:00 GMT Why visual inspection complements routing KPIs https://logisticslab.io/posts/visual-inspection-routing/ Aggregate indicators summarize important dimensions of a routing solution. Service rate, waiting time, distance, utilization, runtime, and rejected requests describe what the system achieved.

They do not show every movement that produced the result. Route replay adds this spatial and temporal view.

Research origin

During mobility-on-demand experiments, visual replay revealed vehicles concentrating in high-demand areas, ignoring diminishing returns, or moving in cyclic patterns. Direct inspection made these behaviors easier to diagnose.

Teaching use

The same approach later supported the Transportation and Logistics Management course. Students inspected solver outputs and checked whether the resulting routes behaved as expected.

ViaViz

ViaViz grew from this research and teaching need. The workbench complements quantitative evaluation with visual inspection of routes, waiting, delays, service, and dispatch behavior.

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