Country-wide macro models
Nationwide Visum models with zoning, demand matrices, road and rail supply, assignment and forecasting for strategic planning and infrastructure appraisal.
PTV Visum consultants · AROM Associates
PTV Visum models, built anywhere in the world.
Need a PTV Visum expert, transport modeller or operator? We build and run macroscopic transport models for cities, corridors and whole countries, and we back them with Vissim, SIDRA and Synchro when you need detail at the junction.
- Pioneer Visum consultants in Pakistan
- Software access up to the 2026 releases
- Projects in Saudi Arabia and Pakistan
- Clients across the USA, Canada and beyond
What we model in PTV Visum
AROM Associates works in PTV Visum, and in PTV Vissim, every week. We have delivered transport models across multiple countries, and several of those engagements are still running. Our work covers the full range below.
Mass transit and public transport modelling
Bus, rail and multimodal networks, line and timetable coding, passenger assignment, modal split and ridership forecasting.
Parking modelling
Parking supply and demand, facility circulation, access and egress, and the effect of parking on surrounding network performance.
Signalised intersections
Fixed-time and actuated signal modelling, capacity, delay, queues and Level of Service, with signal timing options compared side by side.
Unsignalised intersections and roundabouts
Priority junctions, roundabouts and at-grade layouts assessed against signalised alternatives so you can choose the right control type.
Complex networks and transport facilities
Large multi-junction urban networks, interchanges, terminals, truck facilities and other constrained sites where simple methods fall short.
Selected PTV Visum and PTV Vissim projects
A few of the engagements we can talk about. Each one combines the right tool with a clear question: what does the network do today, and what will it do after the change?
Railway transport demand modelling and network analysis
We developed an integrated road and rail model in PTV Visum for a railway development and feasibility assignment in Pakistan, covering passenger and freight demand at regional and national connectivity level.
The model included a structured transport network, traffic analysis zones, origin-destination matrices and multimodal demand for private transport, public transport and rail. We ran base-year assignment, modal split and future-year forecasts under several development scenarios, and calibrated and validated the model against observed volumes and travel patterns.
- Railway demand forecasting
- Route assignment
- Multimodal network
- Passenger and freight
- Calibration and validation
Vehicle tracking and swept path analysis for a large truck parking facility
We assessed internal and external circulation, parking configuration, access and egress, and vehicle manoeuvrability for a large truck parking facility in Dammam using PTV Vissim.
Swept path and movement checks covered passenger cars, heavy commercial vehicles, articulated trucks and tandem-trailer combinations, looking at turning radii, clearances, parking accessibility and circulation efficiency. We also tested how the site connects to the external road network and whether its entry and exit arrangements suit each vehicle type.
- Swept path analysis
- Vehicle tracking
- Articulated and tandem trailers
- Parking layout validation
- Access and egress
Roundabout and signalised intersection comparison
We modelled alternative configurations of a complex at-grade intersection in Saudi Arabia, a roundabout and a signal-controlled junction, to compare how each performs under varying traffic conditions.
The work covered network build, traffic flow representation, geometry assessment and interactions across several approaches and turning movements. We compared queues, delays and overall performance so the client could see the operational consequence of each control strategy before committing to a design.
- Roundabout analysis
- Signalised junction assessment
- Queue and delay comparison
- Microsimulation
Large multi-junction microsimulation with pedestrian mobility assessment
We built a detailed Vissim model of an existing urban network with several complex intersections, constrained geometry, heavy pedestrian activity and mixed traffic.
Scenarios covered existing conditions, on-street parking restrictions, pedestrian interactions, a 10-year traffic forecast and proposed road widening. We reported intersection capacity, queues, delay and Level of Service, added an HCM-based pedestrian Level of Service assessment, and finished with recommendations on capacity, circulation and pedestrian safety.
- Complex multi-junction network
- Future-year forecasting
- On-street parking impact
- Pedestrian Level of Service (HCM)
- Road widening assessment
One team across macro, micro and junction tools
We hold our own licences, with access up to the 2026 releases of PTV Visum and PTV Vissim. You send the brief and the data; we run the models.
PTV Visum
Macroscopic demand, assignment and public transport models.
PTV Vissim
Microsimulation of junctions, corridors, parking and pedestrians.
SIDRA
Intersection and roundabout capacity and performance.
Synchro
Signal timing, coordination and corridor analysis.
Looking for a Visum modeller? We work where you are.
Whether you need a technical partner for one task, a transport modeller to join your team, a Visum operator for a defined scope, or a full analysis delivered end to end, we can start remotely and travel when the project calls for it. We serve developed and developing markets alike.
- United StatesAny state
- CanadaAny province
- Saudi ArabiaAny city or district
- PakistanNationwide
- Everywhere elseDeveloped and developing countries
Questions we are asked about PTV Visum work
Can I hire a PTV Visum modeller or operator for my project?
Yes. We provide experienced transport modellers who build, calibrate and run Visum models, either as a full consultancy service or as an extension of your own team.
Do you hold your own PTV Visum and PTV Vissim licences?
Yes. We have software access up to the 2026 releases of both products, so there is nothing for you to buy or install to commission a model.
What kinds of Visum models do you build?
Country-wide and regional macro models, mass transit and public transport models, parking studies, and network models that include signalised and unsignalised intersections and complex facilities.
Which countries do you work in?
Anywhere. That includes every US state, Canada, any city or district in Saudi Arabia, all of Pakistan, and other developing and developed markets.
Can you also deliver SIDRA, Synchro and Vissim analysis?
Yes. We use SIDRA, Synchro and PTV Vissim alongside Visum, so one team can cover your strategic model and the junction detail underneath it.
Tell us about your transport model.
Send the scope, the study area and your deadline. We will come back with an approach, a team and a timeline for your PTV Visum, Vissim, SIDRA or Synchro work.
Discuss Your ProjectOr write to info@aromassociates.com or call +92-42-32326567.