create_network.py

# code source: http://desktop.arcgis.com/en/arcmap/latest/tools/network-analyst-toolbox/create-network-dataset-from-template.htm

# Name: NetworkDatasetTemplate_workflow.py
# Description: Create a new network dataset with the same schema as an existing
#               network dataset
# Requirements: Network Analyst Extension

## use arcgispro-py3 (python 3)
## change gdb date for variable 'new_network_location'

#Import system modules
import arcpy
import os
import time

today = time.strftime("%m%d%Y")

try:
    #Check out Network Analyst license if available. Fail if the Network Analyst license is not available.
    if arcpy.CheckExtension("network") == "Available":
        arcpy.CheckOutExtension("network")
    else:
        raise arcpy.ExecuteError("Network Analyst Extension license is not available.")
    
    #Set local variables
    ##original_network = "C:/data/Region1.gdb/Transportation/Streets_ND"
    # new_network_location = r"C:\\Users\\gbunce\\Documents\projects\\MultimodalNetwork\\MM_NetworkDataset_08132024.gdb\\NetworkDataset"
    new_network_location = rf"C:\Multimodal Network Data\MM_NetworkDataset_{today}.gdb\NetworkDataset"
    xml_template = r"C:\Multimodal Network Data\network_xml_template\NDTemplate_update_20250702.xml" # Updated template that uses python instead of VBScript
    
    #Create an XML template from the original network dataset
    ##arcpy.na.CreateTemplateFromNetworkDataset(original_network, xml_template)

    #Create the new network dataset in the output location using the template.
    #The output location must already contain feature classes and tables with 
    #the same names and schema as the original network.
    arcpy.na.CreateNetworkDatasetFromTemplate(xml_template, new_network_location)
    
    print(("done creating network, now building it"))

    #Build the new network dataset
    arcpy.na.BuildNetwork(os.path.join(new_network_location, "NetworkDataset_ND"))

    print(("done building the network"))
    print(("done!"))

except Exception as e:
    # If an error occurred, print line number and error message
    import traceback, sys
    tb = sys.exc_info()[2]
    print(("An error occurred on line %i" % tb.tb_lineno))
    print((str(e)))