Keyboard: N new scenario, H hint, Space start or pause.
A delivery vehicle travels from the warehouse to the destination along the selected route.
City parcel delivery
A delivery van must complete three stops across city streets during moderate traffic.
The report will identify traffic, weather, route, handling, and stop-time effects.
Delay contributors
- Waiting for a completed round.
Improvement advice
- Review every factor before estimating.
| # | Scenario | Distance | Estimate | Actual | Error | Score |
|---|---|---|---|---|---|---|
| No completed rounds yet. | ||||||
The simulated actual duration adds controlled uncertainty and possible incidents. Confidence ranges widen when traffic, weather, route quality, and stop complexity become less predictable.
1. Inspect
Review distance, traffic, weather, vehicle, parcel, stops, route conditions, and the delivery deadline.
2. Decide
Choose the fastest, shortest, toll-free, or most reliable route before entering your estimate.
3. Improve
Use the result, delay breakdown, graphs, and history to reduce your average prediction error.
Gridlock can increase delays more than a simple speed reduction because queues also affect stops and parking.
Rain, fog, snow, ice, and storms slow travel while increasing uncertainty around the final arrival window.
Large parcels, heavy loads, restricted buildings, and multiple stops add non-driving time to each route.
A slightly longer reliable route can outperform a shorter route when congestion or incidents are likely.
It starts with the logistics model, then adds controlled uncertainty and occasional difficulty-based route incidents.
Low prediction error, sensible route selection, deadline success, confidence calibration, and streak performance all contribute.
Yes. Change the distance unit in Settings. The model converts miles internally before calculating travel time.
It mainly affects loading, unloading, parking, and access time, while oversized loads can also constrain vehicle choice.
It records how certain you are. Good calibration means high confidence for accurate estimates and caution for uncertain routes.
Scores, settings, achievements, and recent history are stored locally in your browser using localStorage.