latestOpenAPI 3.1.0Proprietary2026-08-175035117.5 KB

019f79ecdd6c

LDS

Get an isoline as H3 cells

Returns the area reachable from a point as a list of H3 cells, each with the travel time to reach it.

Use this instead of /v3/lds/isolines when you want to join the result to other H3 data, or render it as a spatial index layer rather than a polygon.

Only available when your organization's provider is TravelTime. Each request consumes 5 units of your LDS quota.

get/v3/lds/isolines/h3

Query parameters

originstring required

Origin point as longitude,latitude.

mode'cycling' | 'driving' | 'driving+train' | 'driving+public_transport' | 'public_transport' | 'walking' | 'coach' | 'bus' | 'train' | 'ferry' | 'driving+ferry' | 'cycling+ferry' | 'cycling+public_transport' required

Mode of transport. car, walk and bike are accepted as aliases for driving, walking and cycling.

travelTimeinteger required

Maximum travel time in seconds, between 60 and 36000. The usable maximum drops as resolution rises — 36000 at resolution 6 and 7, 28800 at 8, 14400 at 9.

resolutioninteger required

H3 resolution of the returned cells.

optionsstring

TravelTime departure_searches options as a JSON string. Defaults to the current time and the transportation type from mode.

Response

The H3 cells covering the reachable area.

idstring

The H3 cell index.

minnumber

Shortest travel time to the cell, in seconds.

maxnumber

Longest travel time to the cell, in seconds.

meannumber

Mean travel time to the cell, in seconds.