Isoline

Lines connecting separate parts of the reachable area that can be reached within the same threshold. These occur when areas are reachable but not contiguous, such as when separated by water or unroutable areas. When present, these lines represent actual transportation network segments (such as ferry routes or bridges) that connect the separated areas.

The travel distance in meters used to calculate this isoline, if distance-based thresholds were specified in the request.

The shapes that define the reachable area, provided in the requested geometry format.

The travel time in seconds used to calculate this isoline, if time-based thresholds were specified in the request.