Data & decisions · focused workspace

Delivery Window Slack Checker

Walk through a fixed stop sequence, include travel and service time, and reveal waiting, completion slack and late finishes.

Stop timelineCompare scenariosCSV & printable report

Make the next step clearer

Open CSV / project

Preparing the worked example…

Make it yours

Settings & assumptions

Ordered stops

Your result, explained

02 / RESULTS

Read the result in context

Uses minutes from a shared origin and your fixed order. The deadline is service completion, not arrival. No map routing, live traffic, overnight date parsing or automatic route optimization.

How to use Delivery Window Slack Checker

Explore the worked example. Start from a route offset, add travel and service times, wait for windows to open and flag late finishes.
Replace the ordered stops with your own entries. Set route starts · minute.
Choose “Check delivery slack”. Review stop timeline, then compare the visual overview with the detailed tables.
Capture alternative scenarios, download a reusable project and export the selected table or a report when you are ready.

A starting point

Start from a route offset, add travel and service times, wait for windows to open and flag late finishes. The example is illustrative and can be replaced.

Know what you are comparing

Is the deadline an arrival or completion deadline?

It is the time by which service must finish. The result separates arrival, waiting, service start and finish so that this distinction is visible.

Files, privacy & saving

Calculations run locally in a browser worker. Input CSV files use the column names in the downloadable template and keep your current settings. Projects restore inputs and up to four scenarios. Imports are limited to 1 MiB and 100 entries. There is no automatic saving. Public pages include advertising and optional analytics; see our privacy policy.

CSV exports contain the entire selected table. JSON and printable HTML reports include all result tables; open the report and use your browser’s Print command for PDF.

Using Delivery Window Slack Checker

Walk through a fixed stop sequence, include travel and service time, and reveal waiting, completion slack and late finishes.

Explore the worked example. Start from a route offset, add travel and service times, wait for windows to open and flag late finishes.
Replace the ordered stops with your own entries. Set route starts · minute.
Choose “Check delivery slack”. Review stop timeline, then compare the visual overview with the detailed tables.
Capture alternative scenarios, download a reusable project and export the selected table or a report when you are ready.

Example

Start from a route offset, add travel and service times, wait for windows to open and flag late finishes.

Questions & answers

Is the deadline an arrival or completion deadline?

It is the time by which service must finish. The result separates arrival, waiting, service start and finish so that this distinction is visible.

Can I compare and save alternative plans?

Yes. Capture up to four calculated scenarios, restore their inputs and save them in a project JSON file. There is no automatic saving.

How do I bring in my own entries?

Download the CSV template, retain its column names and replace the example rows. Imports are limited to 100 entries and 1 MiB. A saved project also restores settings.

What should I check before using the result?

Uses minutes from a shared origin and your fixed order. The deadline is service completion, not arrival. No map routing, live traffic, overnight date parsing or automatic route optimization.