public TraverseAssociationsResult TraverseAssociations( 
   IEnumerable<Element> startElements,
   TraverseAssociationsDescription traverseAssociationsDescription
)

{
  // This routine demonstrates how to get the associations involved in a downward traversal from a set of starting elements
  static void GetTraverseAssociationsResultFromDownwardTraversal(UtilityNetwork utilityNetwork, IReadOnlyList<Element> startingElements)
  {
    // Set downward traversal with maximum depth
    TraverseAssociationsDescription traverseAssociationsDescription =
      new TraverseAssociationsDescription(TraversalDirection.Descending);

    // Get traverse associations result from the staring element up to maximum depth
    TraverseAssociationsResult traverseAssociationsResult =
      utilityNetwork.TraverseAssociations(startingElements, traverseAssociationsDescription);

    // Get associations participated in traversal
    IReadOnlyList<Association> associations = traverseAssociationsResult.Associations;
  }
}

{
  // This routine demonstrates how to get the associations involved in an upward traversal from a set of starting elements, up to a specified depth limit
  static void GetTraverseAssociationsResultFromUpwardTraversalWithDepthLimit(UtilityNetwork utilityNetwork, IReadOnlyList<Element> startingElements)
  {
    // List of fields whose values will be fetched as name-values pairs during association traversal operation
    List<string> additionalFieldsToFetch =
      new List<string> { "ObjectId", "AssetName", "AssetGroup", "AssetType" };

    // Set downward traversal with maximum depth level of 3
    TraverseAssociationsDescription traverseAssociationsDescription =
      new TraverseAssociationsDescription(TraversalDirection.Ascending, 3)
      {
        AdditionalFields = additionalFieldsToFetch
      };

    // Get traverse associations result from the staring element up to depth level 3
    TraverseAssociationsResult traverseAssociationsResult =
      utilityNetwork.TraverseAssociations(startingElements, traverseAssociationsDescription);

    // List of associations participated in traversal
    IReadOnlyList<Association> associations = traverseAssociationsResult.Associations;

    // KeyValue mapping between involved elements and their field name-values
    IReadOnlyDictionary<Element, IReadOnlyList<FieldValue>> associationElementValuePairs =
      traverseAssociationsResult.AdditionalFieldValues;

    foreach (KeyValuePair<Element, IReadOnlyList<FieldValue>> keyValuePair in associationElementValuePairs)
    {
      // Element
      Element element = keyValuePair.Key;

      // List of field names and their values
      IReadOnlyList<FieldValue> elementFieldValues = keyValuePair.Value;
    }
  }
}