thresholds

The distance or time thresholds used to determine reachable areas. You can specify up to five thresholds (which all must be the same type) to calculate multiple isolines in a single request. For example, to determine the areas that are reachable within 10 and 20 minutes of the origin, specify time thresholds of 600 and 1200 seconds.

You incur a calculation charge for each threshold. Using a large number of thresholds in a request can lead to unexpected charges. For more information, see Routes pricing in the Amazon Location Service Developer Guide.