Downloading CubeDynasim 1.4.17 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The program is categorized as Photo & Graphics Tools. We recommend checking the downloaded files with any free antivirus. The actual developer of the program is Citilabs.
From the developer:
Cube Dynasim is an extremely powerful software system allowing planners and engineers to quickly simulate, visualize, and evaluate the effects. Cube Dynasim captures the intricacies of traffic behavior through detailed operational analysis of complex traffic flows. It realistically emulates the flows of automobiles, motorcycles, trucks, buses, rail vehicles, bicycles, and pedestrians.
You may want to check out more software, such as Cube Dynasim Examples or Cube Dynasim, which might be similar to CubeDynasim.