Live Traffic Data (arcpy)

Zusammenfassung

Provides information about the live traffic information stored in the network dataset such as the streets—TMC join table and the path to the DTF files.

Eigenschaften

Eigenschaft	Erläuterung	Datentyp
tmcTableName (Schreibgeschützt)	The name of the table that contains the relationship between streets and traffic messaging channel (TMC) codes.	String
tmcFieldName (Schreibgeschützt)	The name of the field within the Streets—TMC join table that contains the TMC codes.	String
trafficFeedLocation (Schreibgeschützt)	The path to the location where DTF files are stored. The network dataset reads the DTF files from this location to get the live traffic data.	String

Codebeispiel

Live Traffic Data Properties example

Display a summary of the live traffic information for the network dataset.

# Name: NDSLiveTrafficDataProperties_ex01.py
# Description: Print live traffic information for the network dataset.

import arcpy
import sys

# Set the workspace
arcpy.env.workspace = "C:/Data/SanDiego.gdb/Transportation"

# Create Describe object for the network dataset
desc = arcpy.Describe("Streets_ND")

#Get the historical traffic data object
if desc.supportsLiveTrafficData:
    traffic = desc.liveTrafficData
else:
    #If the directions are not set for the network dataset, exit 
    print "No live traffic information"
    sys.exit() 

print "Live Traffic Information ----" 
print "TMC Table Name: " , traffic.tmcTableName
print "TMC Field Name: " , traffic.tmcFieldName 
print "Traffic Feed: " , traffic.trafficFeedLocation