Engineering can be challenging. Your modelling software shouldn’t be.
We understand the pressure to evaluate multiple design scenarios, satisfy regulatory requirements, and deliver reliable results with confidence.
You shouldn’t have to wrestle with complex software or become an expert just to build a model.
That’s why VO was designed to make modeling simple.
Developed alongside industry experts and refined through decades of real-world use, VO is easy to learn, fast to use, and designed to help you spend less time managing software and more time engineering.
The VO Solution
Everything you need to model with confidence
Easy to Learn
VO simplifies the learning process so engineers can become confident users faster.
Build Models Faster
Buy back hours on setup with intuitive modeling tools, drag-and-drop editing, and built-in GIS integration.
One License. Complete Modeling.
Access both hydrologic and hydraulic modeling with the OTTHYMO and SWMM engines in one interface.
Meet Every Deadline
Keep projects moving with faster scenario testing and fewer modeling bottlenecks.
Accelerate Project Approvals
Create clear visual schematics and scenario comparisons that help reviewers easily understand and approve your recommendations.
Model with Confidence
Generate accurate, defensible results backed by expert technical support, trusted modelling engines, and integrated design storms.
Built by Engineers
Designed by engineers, for engineers.
Simple by Design
Removes unnecessary complexity.
L.E.A.F
Learn Easily. Apply Fast.
Trusted by Regulators
Proven by decades of real-world results.
Why VO?
At Smart City Water, we know you want to be a confident engineer who delivers stormwater models that clients and reviewers can trust. To do that, you need software that’s easy to learn, simple to use, and helps you build reliable models without wasting valuable time.
The problem is that many hydrologic modeling tools are difficult to learn, slow to use, and require unnecessary workarounds. That means more time spent building models, making revisions, and managing software instead of solving engineering problems.
We believe stormwater modeling software should make your job easier — not more complicated.
That’s why we built VO
VO helps engineering consultants, cities, municipalities, universities, and regulatory agencies build models faster, evaluate design options with confidence, and produce results that support regulatory reviews and project approvals.
Getting started is simple
Request Your License
Tell us about your team, and we’ll help you choose the licensing option that’s right for you.
Install VO
Download the software, activate your license, and start building models with an intuitive interface that’s easy to learn.
Start Modeling
Build reliable hydrologic models faster, spend less time on repetitive tasks, and deliver projects with greater confidence.
Request your license today and see why engineering teams across North America choose VO for their stormwater projects.
Buy a VO LicenseGet Started with VO in Three Simple Steps
1. Request a License
Tell us about your team and project needs. We’ll help you choose the right licensing option and provide a personalized quote.
Request a License →
2. Install and Get Started
Download VO, activate your license, and use our onboarding resources to get up and running quickly.
Download VO →
3. Build Better Models
We’ve made getting started simple, so you can focus on delivering successful projects.
Have you been frustrated modeling with tools that:
Are Difficult to Learn
Complex modeling tools can require significant time and training before your team can confidently build and deliver models.
Require Multiple Applications
Switching between different applications slows modeling and increases complexity.
Waste Valuable Time
Without VO, you spend hours building, updating, and reworking models instead of solving engineering problems.
Risk Missing Project Deadlines
Slow scenario testing and repeated revisions put project schedules at risk.
Delay Project Approvals
Unclear outputs slow down stakeholder and agency reviews.
Make You Question Results
Uncertain outputs make it harder to defend engineering decisions with confidence.
Modeling Capabilities
VO SWMM brings together the tools engineers need to build hydraulic models, evaluate system performance, and clearly communicate results—all within one intuitive environment.
Micro-Drainage
Accelerate the design of storm sewer networks through automated micro-drainage tools.
Integrated GIS Tools
Create hydraulic models from spatial data while reducing manual setup.
Network Modeling
Build and edit hydraulic networks using an intuitive visual modeling environment.
Hydraulic & Flood Analysis
Analyze hydraulic system performance during both design and extreme storm events.
Infrastructure Design
Design and evaluate stormwater infrastructure performance and compare alternative designs.
Dual Drainage Modeling
Analyze the interaction between underground storm sewers and surface drainage systems.
Inflow & Infiltration
Evaluate wet-weather inflow and groundwater infiltration affecting sanitary sewer system performance.
Water Quality
Assess pollutants throughout the drainage system.
Results & Reporting
Communicate hydraulic performance through clear outputs.