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Update Log
5.0 - 5/13/2026
Fixed a bug in shortest path searches between Nodes when multiple paths exist; link directions are considered
Added support for displaying invisible link types
Added support for aliases when importing INRIX segment definition files to create Travel Time Segments in VISSIM
Improved naming consistency for link connector properties
Added a function to delete empty static routings
Static routing fractions now default to 1 when the corresponding time period is missing in the INPX file
4.9.2 - 2/13/2026
Added support for reading the VISSIM 2026 file format, including handling breaking DSD changes
Added support for deleting empty static routes where all route fractions are 0 across all time periods
Added detection for infinite loops when calculating demand with missing routings
Display Vehicle Inputs and Routing time directly in the status bar
4.9.1 - 5/13/2025
Added support for batch renaming RBC Signal (.rbc & .prbc) files using custom patterns
Improved the UI for extracting RBC files
4.9 - 5/2/2025
Read Simulation Runs and Data Collection Measurements results directly from the database
Added support for exporting and importing estimated driving behavior capacities
Added VISSIM 2024 and 2025 COM support
Added Network Evaluation settings to the Statistics and MOE window
Improved UI consistency by automatically unchecking partial routes and parking demand when "Calculate by Segment" is selected
Improved error logging with line number details when creating Traffic Compositions and Vehicle Inputs from files
Fixed a bug when checking network coding while .prbc files were missing
Fixed a crash caused by connectors referencing missing links in the network
Fixed a crash when adding or removing lanes due to the new VISSIM 2025 variable connector format
4.8 - 4/16/2025
Read Link, Node, Queue Counter, and Vehicle Travel Time Evaluation results directly from the database
Import all data from exported evaluation .att files, not just "AVG" rows; if "AVG" rows are missing, VHelper will calculate them automatically
Added support for copying multiple rows from MOE lists
Improved VISUM route transfer by logging warnings and updating route fractions if routes already exist
Log the Traffic Composition used in Vehicle Inputs when it is not found in the VISSIM network
Reorganized the UI for displaying queues under Options > MOE
Changed the default export image format from PNG to JPEG
Added async support to the NLog configuration
Fixed a bug when RBC files were missing
4.7 - 3/20/2025
Added an option to consider Lane Closures during path selection when links are fully closed for certain vehicle classes
Fixed a bug when creating Freeway Stick Diagrams
Read all .prbc signal cycle lengths and offsets when opening VISSIM files, since .prbc files are lightweight compared to older .rbc formats
Improved messaging for extra loading volume options, including importing User Defined Volumes and bandwidth differences
Removed the Stamen map background since the free version has been deprecated and replaced by Stadia requiring an API key
4.6.1 - 2/20/2025
Improved and simplified Link Display Options, including customizable pen thickness
Simplified labeling options when "Calculate Volume by Segment" is enabled
Improved the Routing Layout in the sidebar
Export link demands by segment when "Calculate by Segment" is selected
Removed "Show Dummy Link" and "Intermediate Points" options
4.6 - 2/13/2025
Added support for reading the VISSIM 2025 file format and displaying merge/diverge connectors
Display solid pavement markings when lane changes are prohibited
Display pavement markings such as turn arrows, zebra crossings, and HOV diamond lanes
Added support for customizing default lane markings
4.5.1 - 1/16/2025
Fixed a volume calculation bug when multiple routes start and end at the exact same location
Added checks for incomplete routes that have valid link/connector sequences but cannot reach their destination due to end positions
Display route start and end positions in the list view
Read the last view bounds from the .vhelper file
4.5 - 11/10/2024
Import roads and buildings from OpenStreetMap (OSM)
Easily download OSM data by current view area or latitude/longitude polygon
Improved prompt messages for combining static routings
Fixed a bug when opening empty files
4.4 - 6/3/2024
Added support for reading the VISSIM 2024 file format
Added default settings when transferring VISUM paths
Fixed a bug when loading Dynamic Traffic Assignment matrices
4.3 - 5/3/2024
Create static routings from exported VISUM assignment routes using sequences of Nodes - [Transfer VISUM Path]
Updated the format for VISUM routes using sequences of Links
4.2 - 4/7/2024
Create static routings from exported VISUM assignment routes using sequences of Links - [Transfer VISUM Path]
Added checks and visualization for missing Conflict Areas
Display "Replace" and "Replace With" paths for easier identification
Fixed a bug that incorrectly reported cyclic routes
Click connector labels in the status bar to toggle visibility
4.1 - 3/3/2024
Added support for opening Google Street View directly in the browser by right-clicking a map location
Route validation now returns the first problematic Link ID
Added a UK left-hand traffic option for plotting Intersection Node Diagrams
Added VISSIM 2023 COM support and fixed COM issues in previous versions
Fixed a bug when reading .prbc files
Added a splash screen
Improved usability by allowing direct toggling of status bar options instead of using the Options menu or shortcuts
Display a warning when Traffic Compositions contain duplicate Vehicle Types
Display a prompt indicating that "Calculate Volume for each Link Segment" results are only available in center line mode
Updated to .NET Framework 4.8
4.0 - 10/19/2023
Added support for importing custom elevations, clearing elevations, and reporting elevation statistics
Highlight connectors with non-default lane change distances and warn about default lane change distances along a selected path
Save links with lane change distance distributions by vehicle class
Fixed a bug when displaying lane change distances
3.9.9 - 8/22/2023
Fixed a bug when saving link coordinates
Save links with extra attributes in the VISSIM 2023 format
Improved display precision and rendering for networks with large reference point coordinates
3.9.8 - 8/19/2023
When "Calculate Volume for each Link Segment" is enabled, added support for toggling layer visibility, displaying links in Normal or All Lanes mode, and showing additional network objects such as Parking Lots
Display Link Evaluation labels for all lanes when "Per Lane" mode is selected
3.9.7 - 7/29/2023
Replicated VISSIM behavior for static routings at the exact same location with overlapping vehicle types
Routings with smaller IDs take precedence. Overlapping vehicle types follow the routing decision with the smaller ID, while unique vehicle types follow their corresponding routings.
Improved the UI by combining Demand Volume and Routing options into a unified Demand & Routing tab
Improved cyclic route detection and warning messages
Changed the default value of "Discard Non-Deterministic Volumes" to false
3.9.6 - 7/23/2023
Fixed a missing label issue when printing networks
Added support for displaying user-defined volumes
3.9.5 - 6/17/2023
Fixed a .prbc format issue that could cause crashes
Improved route replacement when start and end links match the original routes
3.9.4 - 3/12/2023
Improved demand calculation logic so static routing decisions become effective when starting at the exact stop location of upstream decisions (green end markers)
Fixed a bug where Vehicle Inputs were not displayed
Display a prompt when the "movement" field is missing in the Node output attributes file
Display Link IDs in tooltips for selected network objects
3.9.3 - 2/7/2023
Check RBC signal timing against Synchro CSV files
Added support for the new .prbc format
Added support for customizing label colors in the speed heat map
3.9.2 - 12/13/2022
Improved application startup performance
Reduced map scroll sensitivity
Fixed a bug affecting the display of Detectors and RSAs
3.9.1 - 11/2/2022
Export VISSIM networks to GeoJSON format with support for both Line and Polygon modes
Fixed a bug where longitude calculations could exceed the (-180, 180) range when stitching multiple VISSIM networks together
3.9 - 10/31/2022
Added support for web-based map backgrounds
Currently supports OpenStreetMap, OpenTopoMap, Google Maps, Stamen, CartoDB, and Bing Maps
Bing Maps requires a user-provided API key; the free tier supports approximately 10,000 image requests per month
Use the Ctrl + M shortcut to toggle the web map layer
One-click (right-click) export of the current VISSIM viewport and diagrams to image files
Supports both PNG (transparent background) and JPEG formats
Exports the current viewport exactly as displayed (WYSIWYG)
Improved printing support for centering the entire VISSIM network or diagrams on the page
For large networks, larger paper sizes and high DPI settings (such as 4000 DPI) are recommended for better rendering quality
Added an option to display the VISSIM network bounding box
Display total shortest path length
Zoom to the full extent of Routes, Shortest Paths, and Links instead of only the start or center point
Added support for locking specific OD pair volumes in the ODME
3.8.2 - 10/17/2022
Added support for VISSIM 2022 COM
3.8.1 - 10/16/2022
Updated to .NET Framework 4.6.2 since Microsoft ended support for .NET Framework 4.5.2 on April 26, 2022
Updated Actipro UI DLLs to version 22.1.3 to reduce false-positive blocking issues
Added an option to display a statistics watermark
Improved the sidebar UI using the Actipro Navigation Bar / Explorer Bar for common VISSIM network objects
Added free Traffic Assignment support for TNTP networks
3.8 - 10/10/2022
Introduced a new registration code system
Added OD Matrix Estimation (ODME) features, including balanced Synchro import, one-click ODME, seed matrix import/export, in-place OD editing, and statistics charts
Improved link label layout to reduce overlaps and collisions
Start Vehicle Input IDs from 1 when creating new Vehicle Inputs
Moved the DTA Matrix to the Other Objects window
Intersection Diagrams now ignore pedestrian links by default
Improved network coding checks
Detect missing Signal Heads on adjacent lanes
Detect possible missing lanes in downstream connectors
3.7.1 - 9/20/2022
Double-clicking a link in the list now highlights the link in the Map window in addition to zooming to it
Enhanced network coding validation
Double-clicking an error now highlights the associated network element and zooms to it
Added detection for potential missing lanes in downstream connectors
Ignore right-turn and left-turn connectors when checking connector lane change distances
Ignore pedestrian links when checking for potential missing RSAs
Improved routing error messages
Fixed an issue where imported MOE .att filenames were not displayed
3.7.0 - 9/9/2022
Export SSAM 3 result .csv files to GeoJSON format
Import SSAM 3 conflict .csv files and visualize conflicts directly within the network
Convert VISSIM vehicle record (.fzp) files to SSAM 3 trajectory (.trj) format
Added support for individual lane display types
Improved rendering performance by treating link lanes and lane markings as a single visual object
Fixed an issue where certain U-turns appeared last in the Intersection Diagram
Improved prompts and messaging in the MOE window
3.6.3 - 5/13/2022
Fixed a warning message issue that could occasionally cause VHelper to crash
Fixed missing routing warnings when calculating volume by link segment
3.6.2 - 3/21/2022
Added support for Lane Change Distribution
Enabled demand calculation for sibling partial routes with different vehicle classes
Fixed a partial route time period selection issue
Fixed an issue when updating routing destination locations
Fixed a minor diagram display issue
3.6.1 - 1/19/2022
Added support for updating Link user-defined attributes (UDTs) and display types
Added support for percentage-based route origin changes
3.6.0 - 10/17/2021
Create speed heatmaps from Vehicle Travel Time results in addition to Link Evaluation and Data Collection results
Visualize simulation runtime errors graphically within the network
Create Travel Time segments from paths crossing Nodes, in addition to INRIX files
Enhanced Freeway Diagram with support for choice lanes, left entry/exit, and non-proportional display
Compare networks side-by-side with synchronized panning and zooming, including demand volume display
Display volume bandwidth differences between scenarios
Simplified and reorganized the interface by moving less frequently used objects to the Network Object window
Moved MOE options into the main Options dialog
3.5.1 - 7/28/2021
Added support for updating Link attributes
Enhanced routing filters with support for filtering by name and routing type (static, partial, parking)
Treat missing routing time period fraction values as 1 by default
Improved messaging when creating routes, vehicle inputs, and compositions
Added support for comma thousand separators in fraction values when loading routes
Calculate parking demand directly from parking routes
Added capability to orthogonalize links
3.5.0 - 9/27/2020
Added one-click throughput capacity estimation for each driving behavior using VISSIM COM
Display lane change start locations for selected connectors with per-lane support
Plot vehicle trajectories from raw vehicle record and signal change files for signal offset debugging
Create Travel Time segments directly from INRIX TMC or XD description files
[Free] Enhanced static route filtering with support for non-consecutive links (e.g. "3,50")
[Free] Purge MOE .att files by removing individual seed results while retaining only AVG rows
[Free] Copy and rename MOE SQLite .db files for combining simulation runs from multiple sources
Batch update static route origins and destinations
Added support for delimiting raw detector record (*.ldp) files for easier Excel import
Display intersection LOS and delay by approach instead of movement in Intersection Diagrams
Automatically create detectors along specified parking lots
Set default routeChoiceMeth to "STATIC" for VISSIM 11 and later
Improved handling of long integer DCP/DCM values
Fixed a speed heatmap tooltip issue displaying incorrect LinkEval start period values
Improved loading hints and status messages
3.4.9 - 5/3/2020
[Free] Added lightweight and high-performance visualization for RBC signals
Added support for quickly adding or removing lanes along a path without deleting upstream or downstream connectors, preserving existing routes
Added support for saving Link user-defined attributes and individual lane display types
Enhanced loading process
Improved loading hints and status messages
Allow zones with invalid IDs to be ignored instead of stopping the process, reducing cleanup work for imperfect OD matrices
Added support for combining static routings starting from the same link with the same vehicle class
Allow multiple destination zones ending on the same link while treating them as separate routes
Allow changing destination Link IDs for specified OD pairs, enabling routes to terminate on different links for easier route replacement
Allow globally ignoring selected links regardless of origin zones, useful for excluding links such as bus-only lanes
Allow internal connectors (looping back to the same link) during path building when the end distance precedes the start distance, improving support for roundabouts
Improved warning messages for unresolved demand volumes during demand calculation
Fixed an issue when reading metric-based networks
3.4.8 - 1/12/2020
Added support for batch-running VISSIM files and automatically saving result .att files through COM
Improved Partial Route calculations by accounting for vehicle classes and fixed sibling Partial Route issues
Added support for displaying and filtering Dynamic Traffic Assignment paths (*.weg) by Link IDs in addition to edge sequences
Improved feedback messages when loading Compositions, Vehicle Inputs, and Replace Routes
3.4.7 - 5/4/2019
Added side-by-side VISSIM network comparison with synchronized panning/zooming and highlighted text differences
Added support for including partial routings in demand calculations
Enhanced demand volume display to support any combination of vehicle classes instead of only single types or "All"
Improved lane closure manipulation, including support for adding/removing closures from the left-most lane (-1)
Fixed an issue where Create DCP starting distance was not applied correctly
Fixed a Freeway Diagram issue where exit numbers could appear partially hidden
Fixed a demand calculation issue involving multiple routing decisions at the exact same location on a link
Updated Link-level speed reporting to use the formula Total Volume / Total Density when Link Evaluation per-lane mode is enabled
3.4.6 - 11/17/2018
Added support for opening and saving VISSIM 11 format files
Interactively display shortest paths between links under current favor/penalty settings, with support for copying path Link/Connector IDs
Added support for viewing Transit Stops and Transit Lines
Added filtering for Links and Connectors by name
Added support for minimizing the sidebar
3.4.5 - 9/15/2018
Added level visibility controls under the Utility tab in the sidebar
Added support for copying and moving RBC signal files from the Utility tab
Enhanced the Travel Time Diagram with support for vehicle-class-specific travel times and free-flow speed plots
3.4.4 - 9/2/2018
Updated zoom and pan controls to match native VISSIM behavior
Mouse wheel to zoom
Middle mouse drag to pan
Ctrl + mouse wheel to scroll the window
Left mouse drag and keyboard arrows still supported for panning
Enhanced Intersection Diagram graphics for clearer distinction between Node IDs, delays, and other data
Added support for forcing specific links during automatic static route generation for selected OD pairs
MOE window is no longer always-on-top, allowing better multi-window and dual-monitor workflows
Route names are now displayed in both the Routes list and Volume Details list
3.4.3 - 6/24/2018
Added support for displaying 95th percentile queue lengths from Node Evaluation or Queue Counter results
Changed default Link label colors to use Link type for improved visual differentiation
Added support for viewing additional network objects, including Parking Lots and Detectors
Fixed a queue length display issue introduced in version 3.2 where queues did not extend upstream correctly
Added busy indicators when loading volumes and opening Link Evaluation/Data Collection results
Visualize OD matrices from Dynamic Assignment using self-contained OD matrices stored in VISSIM version 9 and later
3.4.2 - 6/17/2018
Added options to hide routings, links, and other sidebar items to improve performance for very large networks (e.g. 300 MB)
Upgraded NLog DLL from version 2 to 4.5.6
Updated target framework to .NET 4 and replaced deprecated BitmapEffect with ShaderEffect for selected network objects
3.4.1 - 6/10/2018
Added Travel Time chart display
Fixed an issue where the Freeway Diagram incorrectly started at the first DCP location
3.4.0 - 6/3/2018
Import and visualize Link Evaluation results with support for:
Per-segment, per-lane, and per-time-period analysis
Density, speed, and throughput visualization
One-click speed heatmap generation
Detailed mouse-hover tooltips
Import Travel Time results and highlight corresponding travel time sections directly on the map
Display warnings when MOE result files (*.att) do not contain AVG rows
Added support for logging calculation steps to a file
Display Data Collection results (speed and throughput) directly on the map
Added support for VISSIM 9+ data collection fields:
SPEEDAVGARITH(ALL), SPEEDAVGHARM(ALL), and SPEED(ALL)
Improved Node Diagram error messages for invalid matrix formatting and orientation issues
Improved mouse selection behavior to avoid selecting lane markings and allow selecting links beneath Node polygons
Improved performance for volume and speed calculations
Improved loading performance for large MOE files with multiple seeds by using a two-pass parsing process
Open VISSIM files asynchronously in a worker thread
Fixed an issue where left mouse clicks could not deselect network objects
Fixed an issue requiring multiple clicks to generate freeway diagrams or heatmaps after initial load
Fixed downstream connector sorting during demand calculations
Fixed an issue where the last connector in a highlighted route was not always displayed
Fixed connector arrow display issues
Fixed an issue opening VISSIM 5.4 files when Data Collection Points were extremely close to link ends
Expanded DSD labels and tooltip information
Improved parallel polyline rendering for sharp-turn links and connectors
Updated NavigationGraph to support parallel arcs for accurate graph-segment volume calculations on internal connectors
3.3.0 - 5/13/2018
Added shortcut Ctrl + B to toggle demand bandwidth display
Improved intersection diagrams with automatic schematic layout generation
Added support for viewing Reduced Speed Areas (RSA)
Enhanced freeway diagrams and demand stick visualization
Improved OD demand loading with better tooltips, messaging, and more robust processing
Enhanced the Options window interface
Updated network object colors to match VISSIM defaults and added customizable label colors
Matched VISSIM behavior by removing distance differences between inner and outer lanes on curved links
Matched VISSIM behavior for network version 301 or later by preserving full double precision (15–16 digits) for routing start distances
Fixed a bug when reading DSD objects in VISSIM 5.4 and earlier versions
Highlighted the active row in Routing/Error/Link List views using red text
3.2.0 - 2/25/2018
Added demand volume stick diagrams for schematic views
Added support for importing elevation (Z-coordinate) data for all links through the USGS web service
Improved speed heat map generation guidance and workflow
Ignored internal connectors (from/to the same link) when loading OD demand
Fixed a bug where routings were not saved if the original file contained empty routings
Fixed saving issues for link names containing special characters such as en dash (–) and em dash (—)
Fixed a bug where drag-and-dropped VISSIM files did not appear in the recent files list
Added scroll bars to the Options window for smaller screen resolutions
3.1.0 - 1/7/2018
Added VAP support through VAPPad
Fixed a bug where route fraction values were not displayed
Added the ability to disable links by ID when loading specific OD pair demand
Added support for specifying routing start and end distances by Link ID
Added support for comments in Route Find & Replace files
Improved validation and messaging for Route Find & Replace files
Improved double value saving by preventing scientific notation formatting
Improved application startup performance
Fixed a demand-by-segment calculation bug when multiple connectors shared the exact same location
3.0.0 - 8/6/2017
Added demand volume calculation by segment (graph-based Node-Link mode) instead of by entire VISSIM link, enabling turn-by-turn volume analysis on grid networks
Added visualization of Node Evaluation results such as queue, volume, and delay directly on the map
Added advanced Intersection Diagram visualization including Sankey diagrams for volume and LOS gauge displays for signal delay
Added double-click zoom and focus support for Links, Nodes, Queue Counters, Data Collections, Routings, and Error Views
Added support for viewing additional network objects including Vehicle Inputs and Node Polygons
Added graphical lane closure visualization
2.9.1 - 2/18/2017
Last version supporting legacy MOE output formats (*.str, *.rsz, *.kna, etc.)
Added speed contour heatmaps and freeway segment diagrams generated from data collection results with just a few clicks
Fixed label display issues for DCP, DSD, and Routing objects, and added support for Signal Heads
Enhanced DCP creation by supporting add/delete operations for Data Collection Measurements (DCM) and saving DCM data to file
Fixed a bug where newly created DCPs were only saved if other DCPs already existed
Updated the MOE window to remember user inputs after closing
Fixed a GetIFromDistance bug where calculated end distances could exceed the expected range
Added automatic update checking functionality
Updated file saving for VISSIM 8 Pack 1 and later to preserve full double precision (15–16 digits) for X/Y coordinates instead of limiting to 6 decimals
2.8 - 12/11/2016
Enhanced route combination functionality to support multiple time periods
Updated Desired Speed Decision IDs from Int32 to Long
Fixed a bug in static route combination processing
Updated vehicle input and composition creation functions to support multiple time periods
2.7 - 5/28/2016
Updated route fraction handling so empty relFlow="" values are treated as 1 instead of 0
Added support for the newer VISSIM MOE output .att file format
2.6 - 4/16/2016
Added warning message logging when importing vehicle inputs on non-existent links
Added static route combination functionality
Added vehicle input and composition creation functions
2.5 - 2/21/2016
Expanded route creation functionality to support multiple OD files, multiple time periods, and configurable routing start/end distances by link