Traffic Solver

Traffic Solver is a sofware application that helps traffic engineers manage signal based intersection projects. At this moment it has three main parts, each of them providing a different functionality.

  • Intergreen - safety time calculations
  • Stage - stage diagrams
  • Status Diagram - signal status diagrams

Intergreen is designed to be an easy to use and intuitive tool for calculating safety times in a signal controlled intersection. To implement your intersection project you have to upload a map, define a set of rules that you want to be applied in the calculations and then add the signal groups on the map. Traffic Solver allows you to upload your maps in the following formats: Wmf, Pdf, Bmp, Jpg, Jpeg, Gif, Png, Emf.

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Intersection design
Assets/Intergreen.png
Assets/Intergreen.png
Intersection design
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Design rules values
Assets/DesignRules1.png
Assets/DesignRules1.png
Design rules values
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Calculation preferences
Assets/DesignRules2.png
Assets/DesignRules2.png
Calculation preferences
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Safety times
Assets/SafetyTimes.png
Assets/SafetyTimes.png
Safety times
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Intergreen matrix
Assets/IntergreenMatrix.png
Assets/IntergreenMatrix.png
Intergreen matrix
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Conflict matrix
Assets/ConflictMatrix.png
Assets/ConflictMatrix.png
Conflict matrix
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Signal groups configuration
Assets/SignalGroupsSettings.png
Assets/SignalGroupsSettings.png
Signal groups configuration

Before adding the signal groups, an important step is setting the scale for the map. The Scale is important for determining accurately the distances between the signal groups and the conflict points. Based on these distances and the defined rules, the safety time is calculated.

The set of rules, called Design Rules, are speed, vehicle length, predefined time spans and customization parameters defined for each signal group type.

In the Stages part of the project you can design the flow of the intersection stages, by defining the status of the signal groups for each stage.

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Stages
Assets/Stages.png
Assets/Stages.png
Stages
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Stages - Free solution
Assets/StagesFreeSolution.png
Assets/StagesFreeSolution.png
Free solution

When you first enter the Stages part, a Free Solution will be automatically generated. There are two types of stage solutions:

  • Free Solution – only one per project. This type of solution allows you to manage which stage diagrams should be displayed and to add text blocks for a better description of the solution. In the Free solution you have to manually connect the diagrams. This solution cannot be removed from the project.
  • Solution – as many as you need. The stage diagrams are displayed for all the stages defined in the table.

The stage diagrams are generated using the groups designed on the map in the Intergreen part.

The third part of the project, called Status diagram, allows you to describe in a more precise way the signal status flow within a stage and in the whole stage cycle.

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Status Diagram
Assets/Statuses.png
Assets/Statuses.png
Status diagram
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Status diagram designer
Assets/SignalStatusDesigner.png
Assets/SignalStatusDesigner.png
Status diagram designer

For each Stage solution you can create a set of status diagrams, where you can manage the statuses through which each group passes within the stages.

This part is still being developed. Features and functionality will be implemented soon.

For a more detailed description of the product, please refer to the User Guide.