Disim Highway Simulator/License, Contributions and Bugs
Disim 1.0 is available under the GNU General Public License (GPLv3). This license grants you the right to freely use it for your research or industrial application. On the other hand, whenever you extend or modify Disim, you have to make your changes (derived work) available to the public.
The development of Disim should indeed be a collaborative effort. Take part in this collaborative effort and help improving Disim!
The source code of Disim is freely accessible through Sourceforge using SVN:
svn checkout svn://svn.code.sf.net/p/disim/code/ disim-code
If you do wish to participate to the development of Disim, please send me a request to join to project.
You can report any bugs or feature requests through the Sourceforge website (you will need a Sourceforge account).