Summary
Provides information about the historical traffic information stored in the network dataset such as the speed profile table and time slice durations.
Properties
Property | Explanation | Data Type |
timeInterval (Read Only) | The time interval of the traffic data. | Double |
timeIntervalUnits (Read Only) | The units of the time interval of the traffic data. This property returns the following keywords:
| String |
firstTimeSliceFieldName (Read Only) | The field name of the first time slice of the given period in the profile table. | String |
lastTimeSliceFieldName (Read Only) | The field name of the last time slice of the given period in the profile table. | String |
firstTimeSliceStartTime (Read Only) | The start time of valid period of day for traffic data. | String |
timeSliceDurationInMinutes (Read Only) | The duration of time slice in minutes. | Integer |
profilesTableName (Read Only) | The name of the table containing profiles. | String |
joinTableName (Read Only) | The name of the join table between edges and profiles. | String |
joinTableBaseTravelTimeFieldName (Read Only) | The field name for base travel time in the join table. | String |
joinTableBaseTravelTimeUnits (Read Only) | The units for the base travel time in the join table. This property returns the following keywords:
| String |
joinTableProfileIDFieldNames (Read Only) | A Python list containing field names of the join table pointing to speed profiles. | List |
joinTableBaseSpeedFieldName (Read Only) | The field name for base speed in the join table. | String |
joinTableBaseSpeedUnits (Read Only) | The units for the base speed in the join table. This property returns the following keywords:
| String |
lengthAttributeName (Read Only) | The name of the network cost attribute used to define the length along the elements of the network. This attribute is used to calculate the travel time for a given edge based on the speed if the historical traffic data is speed based. This property can be used to determine if a network dataset has been configured using a speed-based or time-based profile type. If the historical traffic data is time based, this property returns an empty string. | String |
Code sample
Historical Traffic Data Properties Example
Display a summary of the historical traffic information for the network dataset.
# Name: NDSHistoricalTrafficDataProperties_ex01.py
# Description: Print historical traffic information for the network dataset.
import arcpy
import sys
# Set the workspace
arcpy.env.workspace = "C:/Data/SanFrancisco.gdb/Transportation"
# Create Describe object for the network dataset
desc = arcpy.Describe("Streets_ND")
#Get the historical traffic data object
if desc.supportsHistoricalTrafficData:
traffic = desc.historicalTrafficData
else:
#If the directions are not set for the network dataset, exit
print "No historical traffic information"
sys.exit()
print "Historical Traffic Information ----"
print "Time interval: " , traffic.timeInterval
print "Time interval units: " , traffic.timeIntervalUnits
print "First time slice field name: " , traffic.firstTimeSliceFieldName
print "Last time slice field name: " , traffic.lastTimeSliceFieldName
print "First time slice start time: " , traffic.firstTimeSliceStartTime
print "Time slice duration in minutes: ",traffic.timeSliceDurationInMinutes
print "Profiles table name: ", traffic.profilesTableName
print "Join table name: ", traffic.joinTableName
print "Join table base travel time field name: ", traffic.joinTableBaseTravelTimeFieldName
print "Join table base travel time units: ", traffic.joinTableBaseTravelTimeUnits
print "Join table ProfileID field names: ", traffic.joinTableProfileIDFieldNames