/// <summary>
        /// AddNATraversalResultLayersToGroup will take the traversal results from an INAResult and add them to the map as a group layer
        /// </summary>
        private void AddNATraversalResultLayersToGroup(IGroupLayer groupLayer, INAResult result)
        {
            var naTraversalResultQuery = result as INATraversalResultQuery2;

            groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETJunction, naTraversalResultQuery));
            groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETTurn, naTraversalResultQuery));
            groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETEdge, naTraversalResultQuery));
        }
		/// <summary>
		/// AddNATraversalResultLayersToGroup will take the traversal results from an INAResult and add them to the map as a group layer
		/// </summary>
		private void AddNATraversalResultLayersToGroup(IGroupLayer groupLayer, INAResult result)
		{
			var naTraversalResultQuery = result as INATraversalResultQuery2;
			groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETJunction, naTraversalResultQuery));
			groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETTurn, naTraversalResultQuery));
			groupLayer.Add(GetTraversalResultLayer(esriNetworkElementType.esriNETEdge, naTraversalResultQuery));
		}