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Delivery Robot Coverage Area Calculator

The Delivery Robot Coverage Area Calculator estimates a practical circular service area from a robot's average travel speed, maximum one-way travel time, and a route-accessibility factor. It converts a time limit into a service radius and then into a simple geographic area.

This is useful for rough zone design around a store, campus hub, dark kitchen, or local fulfillment point. The accessibility factor lets you reduce straight-line reach to account for indirect streets, sidewalks, crossings, gated areas, or other route constraints before using the result as a planning boundary.

Inputs

km/h
min
%
Result
—
Estimated service area
Effective service radius—
Service diameter—
Ideal travel radius—

1. Enter average travel speed
Use a realistic door-to-door movement speed, not the robot's advertised peak speed.

2. Set the one-way time limit
Enter the maximum travel time you want a robot to spend reaching a destination from the dispatch point.

3. Adjust route accessibility
Use 100% for an ideal straight-line assumption or a lower percentage when the street and sidewalk network makes routes indirect.

4. Review the radius
The effective service radius is the estimated straight-line reach after the accessibility adjustment.

5. Use the area as a planning envelope
Treat the circular area as a rough zone estimate and verify actual addresses with route-level mapping before deployment.

Effective radius = Speed × (One-way minutes ÷ 60) × Accessibility factor; Coverage area = π × Effective radius²

Speed — average robot travel speed in kilometers per hour.

One-way minutes — maximum allowed outbound travel time from the dispatch point.

Accessibility factor — percentage adjustment for route indirectness and access constraints.

Effective radius — modeled straight-line service radius in kilometers.

Assumptions: The service zone is approximated as a circle centered on one dispatch point. Real service boundaries can be irregular because of streets, crossings, grades, access rules, weather, and local robot regulations.

What the result means

The modeled service zone has an effective radius of about 1.05 km. Actual reachable addresses should be checked against the local route network and operating constraints.

Use the result as a planning estimate and validate assumptions with observed operating data before making deployment decisions.

Given
• 5 km/h average travel speed
• 18-minute maximum one-way travel time
• 70% route accessibility

Calculation
Ideal radius = 5 × (18 ÷ 60) = 1.50 km
Effective radius = 1.50 × 0.70 = 1.05 km
Area = π × 1.05² = 3.46 km²

Result
Approximately 3.46 km².

Interpretation
The modeled service zone has an effective radius of about 1.05 km. Actual reachable addresses should be checked against the local route network and operating constraints.

Why use an accessibility factor?

Road and sidewalk routes rarely follow straight lines. The factor reduces ideal travel reach to represent detours, barriers, crossings, and other network constraints.

Does the result include the return trip?

The input is a one-way travel limit. If your operational limit is based on a full round trip, enter half of the allowable travel time or otherwise adjust your planning assumption.

Can I use peak robot speed?

A realistic average is usually better because starts, stops, turns, crossings, and pedestrian interactions lower effective speed. Peak speed can overstate service reach.

Is the coverage area guaranteed to be reachable?

No. The result is a geometric estimate, not a route map. Confirm actual addresses, legal access, slopes, weather exposure, and charging needs separately.

How does this relate to task capacity?

Coverage describes how far a robot can reasonably serve. Task capacity estimates how many delivery cycles the fleet can complete within its available operating time.