LISA+ 5.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions of the tool are 5.1, 5.0 and 4.3.
The actual developer of the software is Schlothauer & Wauer GmbH & Co. KG. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program lies within Education Tools, more precisely Science Tools. The most frequent installation filenames for the software include: LisaConfig.exe, Lisawin.exe, Lisawin_4.3.0.352.exe and Lisawin_4.3.2.366.exe etc.
From the developer:
LISA+ is a comprehensive package designed for planning and evaluating intersections, testing traffic-actuated controls and simulating traffic flow. It can also be used to upload data directly to traffic controllers. The detailed simulation and analysis of the proposed control allow a comprehensive assessment of traffic flows.
You may want to check out more software, such as LISA, Lisa's Fleet Flight or My Farm Life 2, which might be related to LISA+.