Open-source alternatives to City2graph

peartree: A library for converting transit data into a directed graph for sketch network analysis.

This project is a collection of big data frameworks and pipelines, including an Apache Hive analysis framework, a behavioral data analytics platform, a predictive analytics engine, and real-time data pipelines. It provides the infrastructure for building Extract, Transform, Load (ETL) workflows to process large datasets for distributed storage and SQL-based analysis. The system supports diverse analytical implementations, such as a predictive engine using linear regression for value forecasting and a real-time architecture that moves data through message brokers for immediate reporting. It in

Busbuzzard

R5 is the routing engine for Conveyal, a web-based system that allows users to create transportation scenarios and evaluate them in terms of cumulative opportunities accessibility indicators. See the Conveyal user manual for more information.

This project is a neural network route optimizer and unsupervised learning tool designed to solve the traveling salesman problem. It functions as a self-organizing map solver that calculates near-optimal paths through a set of coordinates to determine the shortest possible tour. The system utilizes a Kohonen map implementation to organize high-dimensional data into a lower-dimensional representation. It employs competitive learning and topology preservation to approximate solutions for combinatorial optimization problems. The solver covers route optimization analysis and heuristic pathfindin