Polygon Isochrone results (using polygons = TRUE
) from Mapzen as of
January 10, 2017. The location for the isochrones is the Berkeley Marina,
lat 37.86613, lon -122.3151, and the contours are 10 and 15 minutes for a
pedestrian costing model.
marina_walks_polygons
An object of class mapzen_isochrone_list
(inherits from geo_list
) of length 3.