Light-weight computational engine for Static Traffic Assignment on large-scale transportation network
STAlite is an open-source AMS library for efficiently macroscopic traffic assignment based on General Modeling Network Specification (GMNS) format
#What is GMNS? General Travel Network Format Specification is a product of Zephyr Foundation, which aims to advance the field through flexible and efficient support, education, guidance, encouragement, and incubation. Further Details in https://zephyrtransport.org/projects/2-network-standard-and-tools/
#Goals of STALite development
- Provide an open-source code base to enable transportation researchers and software developers to expand its range of capabilities to various traffic management application.
- Present results to other users by visualizing time-varying traffic flow dynamics and traveler route choice behavior in an integrated environment.
- Provide a free, educational tool for students to understand the complex decision-making process in transportation planning and optimization processes.
#Features
1.Network representation based on GMNS format
2.Easy to include demand from different multiple time periods( AM, MD, PM, NT or Hourly)
3.Provide API for both C++ and Python interface
4.Efficient multi-threading parallel computation and memory management, implemented in C++ Utilize up to 40 CPU cores, 200 GB of Memory for networks with more than 50K nodes
5.Extendable Volume Delay Function (VDF) functions: Standard BPR function, and BPR_X function that can obtain dynamic travel time efficiently
