Please note: This is a Sole Source Notification. This purchase provides unlimited technical support, software updates and current software versioning for both VISSIM and Vistro. This software service provides support, features and functions no other vendor provides and is unique to ALDOT's mission to provide safe infrastructure. ALDOT Engineers and Consultants conducting traffic design studies, traffic simulations and visualizations utilize this proprietary software for these purposes. As part of ALDOT's mission to provide safe infrastructure design, planning and construction mu-agency must possess the ability to evaluate, manipulate and check the work performed by these engineers and consultants. Utilizing VISSIM and VISTRO makes it possible to model and study any node geometry, prioritizing, and signaling including the increasing need for complex roundabouts.
