Caliper Corporation develops state-of-the-art transportation planning, traffic simulation, and geographic information systems (GIS) software.

TransCAD is the world's most effective travel demand modeling software featuring the broadest functionality and highest computational performance available. TransCAD includes an embedded GIS for data management, is used for modeling at the city, region, and national scales, and is applicable to all forms of passenger and freight transport.

In the United States, TransCAD is used by a majority of State Departments of Transportation and more than two-thirds of regional planning authorities for their modeling work. In addition, it is the modeling solution used in many world cities in Europe, Asia, and South America, and it is used for teaching travel demand modeling in leading universities worldwide.

TransCAD supports all styles of travel demand including sketch planning methods, four-step demand models, activity-based models, and other advanced disaggregate modeling techniques, and comes with the most extensive set of traffic assignent models ever assembled for use by planners and traffic engineers. Modeling with TransCAD is not limited to urban or regional demand forecasting, but is directly applicable for modeling passenger and freight flows at the state, national, and international level.

TransModeler is the most advanced traffic simulator available providing high fidelity microscopic traffic simulation, mesoscopic simulation, and hybrid meso-micro simulation on the same platform. TransModeler has unique capabilities for modeling toll facilities and new technologies such as connected and automated vehicles. TransModeler has successfully performed the largest traffic simulations and has an unprecedented level of performance for regionwide dynamic traffic assignment models.