PTV Vistro’s Lightning Network Development

New network transparency and visual lane width help for precise placement of geometry for Vissim conversions

Estimated Reading Time: 4 minutes

New to Vistro? PTV Vistro delivers unprecedented network coding speeds due to its unique drag and drop structure, signal building workflows, and lane configuration section features.

Single Intersections

PTV Vistro has preset intersection types, such as signalized, all-way stop, two-way stop, and roundabouts. Each type will drop a four-leg intersection at a precise location. Adding extra legs to the intersection is accomplished by utilizing the Context Menu, then dragging the legs to the correct spot using the grip. Deleting a leg can be simply achieved by clicking on the grip and clicking Delete.

Insert an intersection at a precise location

Extraordinary Lane Configuration Collection

Each approach has an array of lane configurations, with preset templates or plus and minus buttons to customize the approach. New in Vistro 7.00-03, Multi-Edit for lane configurations, make those edits easier on roadways with strict lane balancing. Just click-and-swipe across multiple approaches to bulk edit the intersections lane configurations.

Multi-Edit Lane Configurations

Various traffic volume entry methods

Tired of twisting your head to enter traffic volume data from tables and figures? Select one of three volume input method’s that best matches your count data to save you time, increase quality, and reduce neck cramps.

Try the .csv Values import! With this straightforward to use tabular format, you can batch insert traffic volumes at every intersection with one click! After setting up your network geometry, export the .csv Values file, insert or link volume counts to the table using Excel, then reimport the table into Vistro.

Not interested in bulk data dump shortcuts? With Vistro, you can also quickly enter your traffic volumes at each intersection using the workflow Volumes table (enabling multi-edit), or by graphically by clicking on the turn movement arrows in the Network Editor.

Setting up Signal Groups

In Vistro 7, the workflow setting up your basic signal timing settings was refined. The “Create Default Signalization” feature identifies which street is your major approach and reads the control type settings, such as permissive, protected, permissive/protected, split, and overlap.  Instantly your signal group phases, ring barrier sequence, and phase diagram are automatically created and optimized, as well as estimated pedestrian clearance times are calculated. Further localized optimization can be achieved, or coordination groups can be optimized using network optimization.

Default Signalization sets up sequence, phase diagram, and optimizes split times.

To easily code and verify advanced controller, analysis settings, and calculations, Vistro’s new workflow “Search” tool can be used to quickly find and filter out any parameter increasing the user experience.

Model in Overdrive

Why limit yourself to coding just one intersection at a time?

Copy and Paste!

No one likes extra work, especially along those corridors and city grids that contain the same geometric configurations, volume parameters, and traffic controller phases over and over again! Unleash PTV Vistro’s intersection Copy and Paste functionality to smartly generate your system-wide web of intersections with minimal effort.

Vistro’s Copy and Paste is a real-time, rapid-fire, and intuitive solution. This feature is a direct benefit over other software’s unoptimized process of inserting individual template files into the model.

Refining Geometry and Curvature

After all intersections have been created, generating links between them is effortless – and is literally a snap.  Each leg end has a grip, and when the grips are joined, you now have a link between your intersections. To add curvature, PTV Vistro uses a series of polypoints that can be inserted and modified to fit the alignment.

Vistro is the PTV Vision Suite’s Quick Network Builder

New in Vistro 7.00-05, you can activate the powerful “My Network Opacity” mode and view your model in wireframe. This feature allows you to see the base map imagery while coding your network, so you can accurately fit between curb lines and match lane markings on your base map. Not only does this make your Vistro model look better, this feature enhances capability with the PTV Vision Suite.

New network transparency and visual lane width help for precise placement of geometry for Vissim conversions.

Using Vistro in your Micro and Macro level modeling workflow allows you to quickly generate large detailed networks with minimal effort! This quick and powerful drag-and-drop placement of template-based network objects enables Vistro to be your Quick Network Builder for PTV Vissim and Visum.

For example, Vistro can easily save you over half of your Vissim network setup time by bringing in your link geometry, traffic controllers, detectors, stop bars, speeds, conflict areas, nodes, volumes, and routing! In addition, adding zones and gates to your Vistro network will even provide you with basic Vissim dynamic assignment elements, such as node ends, and the base matrix structure.

Since the PTV Vision Suite utilizes real-word coordinates, PTV Vistro can be used to code the time-consuming pieces of a larger Vissim network. For example, you can code the signalized interchange ramp terminals in Vistro and then stitch this to a Vissim freeway network using the “Read Additionally” function.

Not only is Vistro lightning fast for your TIAs, and traffic ops projects, Vistro is enhances your modeling speed across the Suite, making it a valuable partner!

This entry was posted in PTV Vistro Tips & Tricks and tagged by Adam Lynch. Bookmark the permalink.
Adam Lynch

About Adam Lynch

Adam Lynch, Vistro and Vissim Product Manager and Certified Trainer at PTV Group, has over 15 years of consulting experience in traffic engineering/planning, impact analyses (TIA), and modeling. He is a registered Professional Engineer in Ohio and Colorado, and in 2018, has recently joined PTV to share his real-world PTV Vistro and Vissim experience. Adam is currently hosting the PTV Vistro Training Web Series on LinkedIn and is sharing his tips and tricks that will streamline your next traffic project.