Counts in · Ready-to-run model out

Build better Vissim models in less time.

VHelper automates repetitive work, catches coding errors early, and turns simulation results into report-ready visualizations.

New in version 9: build and edit the whole network right in VHelper. Draw and split links, edit lanes, and add every Vissim object type on the map, with every change undoable.

VHelper also uses traffic-count targets and StreetLight OD data to estimate the OD matrix, then builds Vehicle Inputs, Traffic Compositions, and complete end-to-end Static Routings with one click.

View version 9 release notes See what VHelper can do

VHelper 9 · ODME and routing

Proven for 16+ yearsEngineer-built tools for real project work

One-click workflowsFrom model data to clear insights

Counts + StreetLight ODObserved traffic and prior demand for ODME

Vehicle-aware routingFeasible paths for each vehicle class

New in VHelper 9

Build and edit your network without leaving VHelper.

Draw roads, add every Vissim object type, and fix routing where you find the problem, with the mouse and keys you know from Vissim. Undo any change with Ctrl+Z.

Routes on the map

Add, move, and reroute static routing decisions and routes with the mouse.

Click links to add decisions and routes, with the path previewed as you point
Drag a route onto another link to change its path
Set guards so long routes change only where you drag
Drag a marker off the network to delete it

Routing tables

Edit the numbers alongside the map, the way you would in Vissim’s lists.

Relative flows in place, one column per time interval
Paste from Excel or set several routes at once
Rename decisions and routes
Choose the vehicle classes a decision applies to

Links and every object type

Draw, reshape, split, and delete links and connectors, and add each object in Vissim’s Network Objects list on the map.

New networks from templates for Vissim 11 and 2020 to 2026, with freeway and arterial driving behavior presets
Connector ends follow their links
Signal heads, detectors, and decisions keep their place
Saving writes your changes back into the .inpx and keeps the rest of the file
Save a copy for Vissim 2025, 2024, 2023 or 2022, for example for VISUM

From evidence to model demand

One connected workflow from traffic counts to Vissim.

VHelper combines corridor discovery, vehicle-class-aware estimation, and model generation.

Bring counts and OD data in

Ground the estimation in observed traffic and an informed prior demand pattern.

Use freeway, ramp, and intersection count targets
Import StreetLight OD demand
Support multiple vehicle classes
Visualize observed counts on the network

Estimate the connected corridor

Represent how traffic can move through freeway, arterial, managed-lane, and transfer paths.

Automatically discover corridor topology
Associate zones, ramps, and feasible paths
Keep GP vehicles off ineligible Express/HOT paths
Visualize OD flows and diagnose feasibility

Produce ready-to-run demand

Turn estimated matrices into the core Vissim demand objects automatically.

Create Vehicle Inputs
Create Traffic Compositions
Create complete end-to-end Static Routings
Avoid fragile chains of relay routings

VHelper in action

Four views of the workflow.

These placeholders are ready to be replaced with current VHelper 9 screenshots captured at the same 16:9 size.

ODME and complete routings

Show count targets, OD flows, estimation controls, and the generated end-to-end routing paths.

Connected corridor diagram

Show freeway, arterial, managed lanes, ramps, zones, transfers, and feasible paths together.

Network Objects panel

Show the resizable panel with searching, filtering, sorting, editing, and map navigation.

Focused diagnostics

Show coding issues, simulation errors, import feedback, or the dedicated SSAM workflow.

View the full screenshot gallery

Engineer feedback

Useful because it solves real review problems.

Don’t come to me for QA/QC without checking it in VHelper first!

Anthony Gallo, P.E.Kimley-Horn

I’m really digging the lane change distance error function. I went through the 40 errors it found, and all except two were legitimate.

Joshua Johnson, P.E.Senior Traffic Operations Engineer, HDR

VHelper FAQ

What is VHelper?

VHelper is a Windows companion utility for PTV Vissim. It takes you from traffic counts and prior OD data through corridor-aware estimation to automatically generated demand inputs and routings, and since version 8 it lets you build and edit the network directly on the map.

What do I need to run it?

VHelper runs on Windows and uses the Microsoft .NET Framework. There is no installer: download the ZIP file, extract it to a local folder, and run VHelper.exe. See the download page for current release notes and setup guidance.

What is new in VHelper 9?

VHelper 9 lets you build and edit the whole network in VHelper: draw and split links and connectors, edit lanes, add every Vissim object type on the map, and start new networks from templates with driving behavior presets, with undo for every change. Saving changes only what you edited and keeps the rest of the file as it was, and Save As can write a copy for Vissim 2025, 2024, 2023 or 2022. Version 8 added routes on the map, editable routing tables, a start screen with recent files, simulation parameters and settings checks beside your results, and Save as Vissim 2022. See the release notes for the full list.

Which Vissim versions are supported?

VHelper 9 includes Vissim 2026 file and COM support, works with a range of current and legacy network formats, and can save a copy of a network for any older release from Vissim 2022 to 2025. Review the release notes for version-specific details.

Can I try VHelper before purchasing?

Yes. Download the current release and explore the available tools. For activation, licensing, or evaluation questions, contact support@trananswers.com.

What does the annual license include?

A single-user annual license includes VHelper use, updates, and customer support during the one-year subscription period. See pricing and purchase details.

Turn your traffic counts into runnable Vissim demand.

Explore the VHelper 9 release details or choose an annual license.

View 9.0 release notes View pricing