1. WWW.PTVap.COM
Vikas Sharma
VISUM 11.5
3rd PTV Asia Pacific Vision User Group Meeting 2010

2. 2© PTV AP 2010
Many more operations are faster...
> If you use a multi-core computer
> Headway based public transport assignment
> Time matrix calculations (Skimming)
> Select link analysis (Flow Bundle)
> Vehicle scheduling for PT operations (Line Blocking)
> This is in addition to already converted operations
> Timetable-Based PuT Assignment
> PrT Lohse Equilibrium Assignment

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Private Transport: LUCE is fully launched...
> VISUM’s new, faster, Equilibrium Assignment is no more a
prototype (LUCE)
> All post-assignment operations available
> Skim matrix calculation (along minimum-cost paths or volume-weighted
averages),
> Flow-bundle (select link),
> TFlowFuzzy matrix estimation,
> Blocking back,
> Path listing, including drawing paths in network view
> ANM Route export,
> Warm start
> …

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Private Transport: Assignment with ICA
> You can mix HCM2000 based node impedance and a static
assignment based on Turn VDFs (ICA Assignment)
> The program re-calibrates Turn VDFs based on ICA
 Find this at:
Calculate/Procedure/Create/PrT Assignment/Assignment with ICA
Assignment using user-defined VD functions for turns
ICA (HCM 2000)
Smoothed
turn volumes
Parameters of
volume-delay curves

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Private Transport: Assignment with ICA
> New assignment method
> Native integration of former script solution
> Based on either Equilibrium or Equilibrium Lohse
> LUCE will follow as soon as warm start is available
> Wraps also relevant settings for blocking back and ICA
> Related Improvements
> Blocking back reports actual and demand flows simultaneously
> Blocking back optionally based on turn capacity instead of / in addition
to link capacity
> Normal („non-ICA“) assignment can run with turn-specific VDFs from
last ICA-assignment
> Improved SATURN to VISUM network importer
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Assignment with ICA

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Assignment with ICA

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Private Transport: Toll Assignments
> Easy toll assignments when tolls are
> Area based
• VISUM takes care of double-charging avoidance
> Matrix based
• VISUM takes your load of gate-to-gate links volume synchronisation
between virtual and real links
 Find this at:
1. A New Network Object: ‘Toll Systems’
2. Calculate/ Procedure/Create/PrT Assignment/Procedure/TRIBUT-Equilibrium Assignment/Parameters
3. Lists/Toll/Toll systems/Toll Matrices
> Wizard for Traffic Impact Assessments
> An add-on module to simplify process flow

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Private Transport: Toll Assignments
> Road Pricing in Highway Assignment
> Classical:
Impedance = Travel Time + 1/VoT * Toll + …
> More realistic:
Multiple demand segments, each with its
own value of time
> Much better:
Continuous distribution of VoT
all attractive time / toll combinations
> Tribut
> Method developed by INRETS VISUM 6.5
> Request 1: faster!
> Request 2: straightforward modelling of different road pricing schemes

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Private Transport: Toll Assignments
> Link Toll
> Some links in the network carry a toll.
> Amount per link and tsys.
> Toll for a path = sum toll over all links on path

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Private Transport: Toll Assignments
> Matrix toll
> Subnetwork with gates
> Toll = f(in-gate, out-gate)
> Toll can be degressive with distance
 cannot be expressed as link toll

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Private Transport: Toll Assignments
> Area Toll
> Spatial area
> Tool = Flat fee independent
of distance
> Each trip across area boundary
costs
> Internal traffic in toll area may
or may not be charged

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Public Transport
> PT Vehicle Scheduling
> A new Viewer
> More powerful optimizer
• Vehicle substitution
• Minimizing dead kilometres
• Regularly formed schedules
• Fit vehicle capacity to
assigned passenger volumes
 Find this at:
Timetable Editor/Block view PuT line blocks
> Individual time matrices for various demand segment
> Impedance and choice can also be customised for each demand
segment
 Find this at:
Calculate/Procedure/Create/PuT Assignment/Parameters/Demand Segments

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Public Transport Fares
>Fare Model in VISUM 11
> Influenced by European practice
> One person trip  one ticket
> One VISUM Model  one uniform fare
system (per DSeg)
>New in VISUM 11.5
> Multiple fare systems within single
model, for different operators, areas, …
> One person trip  several tickets
> Within one fare system, multiple tickets
(e.g. normal fare + short-distance fare)
> Matrix fares, aka relational fares
 Find this at:
Network/PuT Fares

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More constraints for matrix estimation - TFlowFuzzy
> Flows across screen-lines
> Trip length frequency distribution
> Line volumes
> Boardings/ Alightings
> With or without transfers
 Find this at:
Calculate/Procedure/Create/Matrices/Demand Matrix Correction (TFlowFuzzy)

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Emission Modelling using HBEFA and ARTEMIS
> A set of emission factors from Germany, Switzerland and Austria
(HBEFA 3.1)
> More countries joining-in
> Systematic descriptors for traffic situation (ARTEMIS)
> Assessment and Reliability of Transport Emission Models and Inventory
Systems
> Simplifies mapping from transport models to emission models
> Urban/Rural, road hierarchy, free flow speed and LOS
> Readymade as well as customisable fleet composition
> Enables localisation
> Cold/ warm start distinction also possible
> Output can be exported as shape file for more detailed modelling
 Find this at:
Network/Fleet Compositions AND Calculate/Procedure/Create/Miscellaneous/HBEFA based emission
calculation

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Scenario Management (Part 1)
> Text files to transform one scenario to another
> Capture addition, deletion and changes
> Covers supply as well as demand data
> Syntax similar to net files – no learning curve
> Users only need to maintain one base model
> And many small ‘deltas’ describing various scenarios
> Can be applied in succession
> Next release will have a GUI
> To manage all scenarios rooted to a base model
 Find this at:
File/Compare and Transfer Networks/ <Create OR Apply> Model Transfer File

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Scenario Comparison
> Pull selected (or all) attributes from an external model
> Or several external models
> Easy comparative listings / maps
> Readymade attributes for
> Difference
> % Difference
 Find this at:
File/Compare and Transfer Networks/Version Comparisons

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A New Matrix Editor
> Always available matrices
> Open several matrices
> Compare side by side
> Histogram view
> Plot frequency distribution
> Compare several matrices’ histograms
> Graphic parameters
> View values classified by any parameter
> Important attributes visible in quick view window
> Filter values on any parameter
> Aggregate on any zone attribute
> A new...easy way to perform matrix calculations

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Better filters

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Easy Matrix Calculations
 Find this at:
Scripts / VisumAddIn / Matrix /Calculate Matrix
> Easily perform complex calculations
> Type any python compliant expression
> Mix zone and main zone matrices
> Mix matrices and zone attributes as
> origin attribute or
> Destination attribute
> Constrain calculations based on
values of any matrix
> Can be included as a standard
operation with other native
operations

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Easy Network Calculations
 Find this at:
Scripts / VisumAddIn / MultiEdit Attribute
> Use for any network object
> Easily perform complex
calculations
> Type any python compliant
expression with brackets and
complex operators
> Can include any indirect
attribute of a related network
object

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Other conveniences...
> Pan with mouse middle button/ wheel
> As you do in VISSIM
> Preview snappable points when drawing polygons
> Include company logos in print frames
> Draw polygons for fare zones
> Import Google Transit Feed

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Other conveniences...
> Import SATURN networks
> Use UNICODE characters even for attribute codes, names, file
names and paths
> Complete (disaggregated) attributes available for connectors
> Link orientations can use 8 (or 16) cardinal directions
> POI attributes can be inherited to its sub-categories

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Perspectives
>Future development after VISUM 11.5:
> Scenario Management Part 2
> More GPar dialog usability improvements
> Improved Calculate Procedures dialog
> Support for HCM 2010 in ICA
> OpenStreetMap import
>We will also explore options for:
> Cloud computing
> Mesoscopic simulation MEZZO
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Demand Model Improvements
>Plans for VISUM 12.0
> Better parameter dialog for demand model operations
• Less nesting
• More settings visible at one glance
• See immediately which settings are still missing
• Better Copy & Paste in parameter grids
> Calc – Procedures dialog and selected parameter dialogs become
modeless and may remain open while executing procedures or in
parallel to network / matrix view
 faster workflow during model calibration
> Improved 4-stage demand model
• Nested logit model for destination, mode & macro time period choice
• Choices in any order
• Absolute and incremental model forms
• PA and OD