Plan for Version 2

[toruseo]

Almost three years have passed since the initial release of UXsim.

Since then, many updates have been made. And naturally, some features have become increasingly complex, and some default settings have also proven to be suboptimal. Addressing these issues will require breaking changes and therefore a major version update.

At some point in the future, though not imminently, I plan to release UXsim v2.

The following changes are currently planned:

• Update default argument values:
  • Prevent unrealistic U-turns with World(..., no_cyclic_routing=True)
    Vehicle may use cyclic path too frequently #272
  • Automatically adjust node capacities with World(..., adjust_node_capacity=True)
    Add feature that automatically adjust Node.flow_capacity #321
  • Improve jam density settings
    Default value of jam density does not scale with number of lanes #343
• Improve the logging system, which is currently taking a significant computation time, if an efficient solution can be found.
• Enable C++ mode by default with World(..., cpp=True), currently provided as beta versions like v1.14.0b7. This can make simulations around 20 times faster.
  Integration of C++ mode #297
• Remove optional submodules such as OSMImporter, ResultGUIViewer, and TaxiHandler. These may instead be provided as separate Python packages, something like uxsim-osm.
• and maybe more

Please let me know if users have any comments or thoughts.

FYI: Evolution of UXsim main codes (excluding tests and examples):