| Name | Description |
 | accumulate_attribute_name | List of cost attributes to be accumulated during analysis. These accumulation attributes are purely for reference; the solver only uses the cost attribute specified by the Impedance attribute parameter to calculate the route. (In, Optional) |
 | Alias | The alias for this tool's toolbox. |
 | default_cutoff | Default impedance value at which to stop searching for facilities for a given incident. The default can be overridden by specifying the cutoff value on incidents when TRAVEL_TO option is used or by specifying the cutoff value on facilities when TRAVEL_FROM option is used. (In, Optional) |
 | default_number_facilities_to_find | Default number of closest facilities to find per incident. The default can be overridden by specifying a value for the TargetFacilityCount property on the incidents. (In, Optional) |
 | hierarchy | The parameter is not used if a hierarchy attribute is not defined on the network dataset used to perform the analysis. In such cases, use "#" as the parameter value. (In, Optional) |
 | hierarchy_settings | Prior to version 10, this parameter allowed you to change the hierarchy ranges for your analysis from the default hierarchy ranges established in the network dataset. At version 10, this parameter is no longer supported and should be specified as an empty string. If you wish to change the hierarchy ranges for your analysis, update the default hierarchy ranges in the network dataset. (In, Optional) |
 | impedance_attribute | The cost attribute to be used as impedance in the analysis. (In, Required) |
 | in_network_dataset | The network dataset on which the closest facility analysis will be performed. (In, Required) |
 | out_network_analysis_layer | Name of the closest facility network analysis layer to create. (In, Required) |
 | output_layer | Network Analyst Layer (out, Optional) |
 | output_path_shape | Specifies the shape type for the route features that are output by the analysis. (In, Optional) |
 | ParameterInfo | The parameters used by this tool. For internal use only. |
 | restriction_attribute_name | List of restriction attributes to apply during the analysis. (In, Optional) |
 | ToolboxDirectory | The directory of this tool's toolbox. |
 | ToolboxName | The name of this tool's toolbox. |
 | ToolName | The name of this tool. |
 | travel_from_to | Specifies the direction of travel between facilities and incidents. (In, Optional) |
 | UTurn_policy | Restrict or permit U-turns at junctions that could occur during network traversal between stops. (In, Optional) |