How built up are robot delivery corridors?
The built environment is what a sidewalk robot actually moves through: buildings mean entrances and curb cuts, driveways mean vehicle conflict points, and parking facilities mean loading zones. Measured from OpenStreetMap, building and driveway density varies widely across the tracked corridors. A denser corridor packs more delivery targets into a block but also more interruptions per mile; a sparser one is simpler to traverse but spreads the same fleet thin. These are OSM counts, so a lighter number can reflect community tagging coverage as much as a genuinely lower density.
Every count is measured from OpenStreetMap. How we verify.
Built-environment counts by corridor
| Corridor | Metric | Count | Detail | Basis |
|---|---|---|---|---|
| LA West Side | Buildings | 209,658 | 209,658 OSM buildings in LA Westside bbox. Highest building density of any corridor. | Measured |
| LA West Side | parking count | 1,774 | 1,774 OSM parking areas. LA has most parking of any corridor. | Measured |
| SF Core | Buildings | 14,966 | 14,966 OSM buildings. SF is denser per sq km despite fewer total. | Measured |
| SF Core | parking count | 412 | 412 OSM parking areas. SF has less parking than LA. | Measured |
| Austin | Buildings | 13,619 | 13,619 OSM buildings in Austin corridor. | Measured |
| Austin | parking count | 1,186 | 1,186 OSM parking areas. Austin is car-dependent. | Measured |
| Chicago | Buildings | 46,536 | 46,536 OSM buildings. Second highest after LA. | Measured |
| Chicago | parking count | 1,487 | 1,487 OSM parking areas. Chicago has significant parking despite density. | Measured |
| Phoenix | Buildings | 3,655 | 3,655 OSM buildings. Lower density sprawl. | Measured |
| Phoenix | parking count | 295 | 295 OSM parking areas. | Measured |
| Dallas-Fort Worth | Buildings | 9,653 | 9,653 OSM buildings in DFW corridor. | Measured |
| Dallas-Fort Worth | parking count | 743 | 743 OSM parking areas. Car-dependent. | Measured |
| Miami | Buildings | 8,702 | 8,702 OSM buildings in Miami corridor. | Measured |
| Miami | parking count | 302 | 302 OSM parking areas. | Measured |
| Atlanta | Buildings | 12,886 | 12,886 OSM buildings in Atlanta corridor. | Measured |
| Atlanta | parking count | 461 | 461 OSM parking areas. | Measured |
| Alexandria, VA | Buildings | 10,040 | 10,040 OSM buildings in Alexandria corridor. | Measured |
| Alexandria, VA | parking count | 333 | 333 OSM parking areas. | Measured |
Source: OpenStreetMap via Overpass API (building, parking, and driveway tags per corridor bounding box). Counts reflect OSM tagging coverage.
Why the built environment matters for sidewalk robots
A sidewalk robot negotiates the physical street: every driveway is a vehicle conflict point, every building is a potential delivery destination and a curb-cut, and parking facilities are where loading happens. Denser corridors give a fleet more to do per block but also more to negotiate. Because this is measured from OpenStreetMap, a lighter count can partly reflect under-tagging as well as genuinely lower density.
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Every count is measured from OpenStreetMap tags via the Overpass API per corridor bounding box and carries the Measured basis. OSM is community-tagged, so a lighter count can reflect tagging coverage rather than a true low. These are measured-from-open-data facts, not reviewed DEPLOY registry records, so none carries the registry verified chip. How we verify
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The open-data coverage scorecard per corridor.
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