4.6 Network Assignment - Revision history

Bpaul at 05:38, 13 March 2023

2023-03-13T05:38:50Z

Gwineman at 21:37, 17 October 2016

2016-10-17T21:37:29Z

Gwineman: Created page with "Category:4.0 Directory & Data Structures"

2016-10-17T21:28:35Z

Created page with "Category:4.0 Directory & Data Structures"

New page

[[Category:4.0 Directory & Data Structures]]

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 <h3>Highway Assignment</h3>
-The demand matrices from DaySim, Jacksonville port freight, and EE and IEEI vehicle and trucks are combined to create the final assignment matrices by time period in \Master\ {SCENARIO_DIR}\output:
+All demand matrices pertaining to different demand segments are stored in the Visum version files matrix objects. The demand matrices from DaySim, Jacksonville port freight, and EE and IEEI vehicle and trucks are combined to create the final assignment matrices using Visum's built-in matrix operations.
-*HWYTTAB_AM_{alt}{year}.MAT
+All network-level inputs required for the assignment are stored within the Visum version file itself.
 <h3>Transit Assignment</h3>
-‘Transit Network ’ application creates the peak and off-peak networks for assignment and stores them as \Master{SCENARIO_DIR}\output\TransitPK.NET and \Master\{SCENARIO_DIR}\output\TransitOP.NET respectively. The transit trip table from DaySim is \Master\{SCENARIO_DIR}\Output\DaySim\TRANSITTAB_{alt}{Year}.MAT. Assignment is done using Cube’s PUBLIC TRANSPORT program.
+The transit trip tables for both peak and off-peak periods are stored in the Visum version file. All other inputs such as headways and stop locations are also stored in the version file
 <h2>Assignment Outputs</h2>
@@ Line 22: / Line 17: @@
 <h3>Highway Assignment</h3>
-Highway assignment primarily produces three output:
+Highway assignment primarily produces these outputs:
-*Loaded highway network containing assigned volumes by time period (\Master\{SCENARIO_DIR}\output\LOADED_CombinedPeriods.NET)
+*Loaded highway network containing assigned volumes by time period. Daily link volumes and for each period are stored in user-defined link fields - VOL_AM, VOL_MD, VOL_PM, VOL_EV, VOL_DA
-*Skim network for creating skims for next iteration (\Master\{SCENARIO_DIR}\Output\{Scenario_ShortName}_SkimNet.NET)
+*Skim network for creating skims for the next iteration. These are exported in the required format.
 <h3>Transit Assignment</h3>
-The assignment is performed twice, once producing reports on nontransit legs (\Master\{SCENARIO_DIR}\output\TLOADNTPK_{alt}{year}.DBF and TLOADNTOP_{alt}{year}.DBF) and another time producing transit volumes on links (\Master\{SCENARIO_DIR}\output\TLINKPK_{alt}{year}.DBF and TLINKOK_{alt}{year}.DBF).
+Transit assignment is performed only in the final iteration of the model run. Boarding and Alighting and stop and route level are all stored in the Visum version file itself.

← Older revision		Revision as of 21:37, 17 October 2016
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	[[Category:4.0 Directory & Data Structures]]		[[Category:4.0 Directory & Data Structures]]
		+
		+	<h2>Assignment Inputs</h2>
		+
		+	<h3>Highway Assignment</h3>
		+
		+	The demand matrices from DaySim, Jacksonville port freight, and EE and IEEI vehicle and trucks are combined to create the final assignment matrices by time period in \Master\ {SCENARIO_DIR}\output:
		+
		+	*HWYTTAB_AM_{alt}{year}.MAT
		+	*HWYTTAB_MD_{alt}{year}.MAT
		+	*HWYTTAB_PM_{alt}{year}.MAT
		+	*HWYTTAB_NT_{alt}{year}.MAT
		+
		+	The location of the unloaded network on which assignment is performed is \Master\ {SCENARIO_DIR}\output\UNLOADED.NET. Most of the other inputs required such as turn penalties and speed capacity tables are located in \Master\parameters\ and \Master\ {SCENARIO_DIR}\input\ directories.
		+
		+	<h3>Transit Assignment</h3>
		+
		+	‘Transit Network ’ application creates the peak and off-peak networks for assignment and stores them as \Master{SCENARIO_DIR}\output\TransitPK.NET and \Master\{SCENARIO_DIR}\output\TransitOP.NET respectively. The transit trip table from DaySim is \Master\{SCENARIO_DIR}\Output\DaySim\TRANSITTAB_{alt}{Year}.MAT. Assignment is done using Cube’s PUBLIC TRANSPORT program.
		+
		+	<h2>Assignment Outputs</h2>
		+
		+	<h3>Highway Assignment</h3>
		+
		+	Highway assignment primarily produces three output:
		+
		+	*Loaded highway network containing assigned volumes by time period (\Master\{SCENARIO_DIR}\output\LOADED_CombinedPeriods.NET)
		+	*Skim network for creating skims for next iteration (\Master\{SCENARIO_DIR}\Output\{Scenario_ShortName}_SkimNet.NET)
		+	*Highway validation file (\Master\{SCENARIO_DIR}\Output\HighValidation.dbf)
		+
		+	<h3>Transit Assignment</h3>
		+
		+	The assignment is performed twice, once producing reports on nontransit legs (\Master\{SCENARIO_DIR}\output\TLOADNTPK_{alt}{year}.DBF and TLOADNTOP_{alt}{year}.DBF) and another time producing transit volumes on links (\Master\{SCENARIO_DIR}\output\TLINKPK_{alt}{year}.DBF and TLINKOK_{alt}{year}.DBF).