awesome-transit

Community list of transit APIs, apps, datasets, research, and software :bus::star2::train::star2::steam_locomotive:
https://github.com/MobilityData/awesome-transit

Last synced: 11 days ago
JSON representation

About
- Luqmaan Dawoodjee
Producing Data
- GTFS
  - MobilityData - "Understanding GTFS: An intro and overivew - Video provides an overview of of the General Transit Feed Specification (GTFS) and why it is useful for transit agencies, riders, and policymakers.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - Open Transit Data Toolkit - A series of lessons to help people utilize open transit data.
  - ArcGIS - Introduction to GTFS
  - GTFS-books - Comprehensive guides to GTFS and GTFS Realtime. These books were written by [Quentin Zervaas](https://github.com/HendX), and have been donated to [MobilityData](https://mobilitydata.org/) and made open access.
  - Transit app Guidelines for Producing GTFS Static Data - Additional Transit app-specific documentation of GTFS.
  - Bing Maps Transit - Add your transit data to Bing Maps - Additional Bing-specific documentation of GTFS.
  - Yandex Maps - Transport integration - Additional Yandex-specific documentation of GTFS.
  - CGTFS - C library for reading static GTFS feeds. Supports reading unpacked feeds into application memory or into SQLite databases.
  - RRRR Rapid Real-time Routing - RRRR (usually pronounced R4) is a C-language implementation of the RAPTOR public transit routing algorithm.
  - just_gtfs - C++17 header-only library for reading and writing GTFS (used in [Valhalla](https://github.com/valhalla/valhalla)). Main features: fast reading and writing of GTFS feeds, support for [extended GTFS route types](https://developers.google.com/transit/gtfs/reference/extended-route-types), simple working with GTFS Date and Time formats.
  - ESRI public-transit-tools - Tools for working with public transit data in ArcGIS (license for ArcGIS required).
  - Go GTFS Parser - A GTFS parsing library for Go.
  - gtfs-sequelize - Node.js library modeling the static GTFS using sequelize.js.
  - gtfs-utils
  - gtfs-via-postgres
  - Node-GTFS - Loads transit data from GTFS files, unzips it and stores it to a SQLite database. Provides some methods to query for agencies, routes, stops and times.
  - gtfs-schema - PostgreSQL schema for GTFS feeds.
  - gtfsdb - Python library for converting GTFS files into a relational database.
  - gtfs_functions - Python package with useful functions to create geo-spatial visualizations from GTFS feeds.
  - gtfs-segments - Python package that represents GTFS data for buses in a concise tabular manner using segments.
  - gtfslib-python - An open source library in python for reading GTFS files and computing various stats and indicators about Public Transport networks.
  - gtfsman - Repository-like tool in Python to manage and update a huge number of GTFS feeds.
  - gtfspy - Public transport network analysis and travel time computations using Python3. Compatible with Postgres/PostGIS, Oracle, MySQL, and SQLite. Used by [gtfspy-webviz](https://github.com/CxAalto/gtfspy-webviz).
  - GTFS Kit - A Python 3.8+ tool kit for analyzing General Transit Feed Specification (GTFS) data. Supersedes GTFSTK.
  - Make GTFS - A Python library to make GTFS feeds from basic route information.
  - Mapzen GTFS - A Python GTFS library that supports reading individual GTFS tables, or constructing a graph to represent each agency in a feed.
  - multigtfs - A Django application to import and export GTFS.
  - partridge - A fast, forgiving Python GTFS reader built on pandas DataFrames.
  - transit_service_analyst - A Python library to support transit service analysis.
  - TransitGPT - TransitGPT is a Generative AI-powered chatbot that enables transit enthusiasts to access and analyze General Transit Feed Specification (GTFS) data through natural language instructions.
  - gtfsio - Fast and flexible functions to read and write GTFS in R.
  - tidytransit - Use tidytransit to map transit stops and routes, calculate travel times and transit frequencies, and validate transit feeds. tidytransit reads the General Transit Feed Specification into tidyverse and simple features data frames.
  - GTFS-viz - Ruby script that converts a set of GTFS files into a SQLite database + GeoJSONs (needed by the [Transit Map](https://github.com/vasile/transit-map) web application)
  - gtfs-structure - This crates provides GTFS structures and helpers to read GTFS archives.
  - Chouette - Converts between French-Transmodel [NeTEX](https://transmodel-cen.eu/index.php/netex/) and GTFS.
  - extract-gtfs-pathways - line tool to extract pathways as GeoJSON from a GTFS dataset.
  - extract-gtfs-shapes - line tool to extract shapes as GeoJSON from a GTFS dataset.
  - GTFS-OSM-Sync - A Java tool for synchronizing data in GTFS format with [OpenStreetMap.org](http://www.openstreetmap.org/).
  - gtfs-parser - The GTFS-PARSER library is a library to allow javascript to parse gtfs and create geojson on client or server.
  - gtfs-service-area - Compute a transit service area from static GTFS. Results are output as single-layer .geojson files. Dockerized version of [gtfs-to-geojson](https://github.com/BlinkTagInc/gtfs-to-geojson).
  - GTFS-route-shapes - A Python script to generate a single geoJSON shape for each transit route in a GTFS archive.
  - gtfs-to-geojson - Javascript tool that converts transit data in GTFS shapes and stops into geoJSON. This is useful for creating maps of transit routes.
  - gtfs2gps - An R package that converts public transportation data in GTFS format to GPS-like records in a `data.table`, where each row represents the timestamp of each vehicle at a given spatial resolution.
  - gtfs2emis - An R package to estimate the emission levels of public transport vehicles based on General Transit Feed Specification (GTFS) data.
  - gtsf - general transit (GTFS) simple (geographic) features (sf) in R. can be used to convert from GTFS to Shapefile, GeoJSON, and other formats through GDAL.
  - hafas-generate-gtfs - in-progress)* – A Javascript tool to generate GTFS dumps from HAFAS endpoints.
  - Hafas2GTFS - Hafas2GTFS converter written in Python, optimized for SBB HAFAS feeds.
  - NeTEx-to-GTFS Converter Java - Converts NeTEX datasets into GTFS datasets. The input NeTEx datasets are required to follow the Nordic NeTEx Profile.
  - o2g - A simple tool to extract GTFS feed from OpenStreetMap.
  - onebusaway-gtfs-to-barefoot - A Java tool to create a [Barefoot](https://github.com/bmwcarit/barefoot) mapfile from a GTFS file.
  - onebusaway-vdv-modules - A Java library for working with transit data in the VDV format, including converting VDV-452 schedule data into GTFS.
  - osm2gtfs - Turn OpenStreetMap data and schedule information into GTFS.
  - transit_model - A Rust library to convert to/from the following formats: GTFS, NTFS (for Navitia, see [Software for Creating APIs](#software-for-creating-apis)), TransXChange (UK specification), KV1 (NL specification), NeTEx (EU specification).
  - transloc-gtfs-rectifier - Python application that attempts to assign GTFS stop_ids to [TransLoc](http://transloc.com/) IDs using [TransLoc's API](https://market.mashape.com/transloc/openapi-1-2) ([TransLoc](http://transloc.com/) doesn't provide GTFS `stop_ids` in their API).
  - Transmodel and IFF to GTFS - Imports and syncs (Transmodel) BISON Koppelvlak1, IFF (a format written by HP/EDS, somewhat similiar to ATCO CIF) to import timetables of the railway networks. The internal pseudo-NETeX datastructure allows to export to GTFS and there are proof-of-concepts to export to other formats such as NETeX, GTFS and IFF.
  - Transporter-Project transxchange-to-gtfs - C.
  - TXC TransXChange publisher (UK Department for Transport) - The TXC TransXChange publisher is a standalone software tool that can be used to publish TransXChange compliant XML documents in a format that’s easy to read and print.
  - UK2GTFS - R package that converts UK format TransXchange (bus, metro, tram, ferry) and CIF (rail) timetables to GTFS.
  - AddTransit - SaaS (Software as a Service) platform to create, edit and publish schedules in GTFS format.
  - bus-router - Python script that generates missing shapes.txt for GTFS using routing from [Google Maps Directions API](https://developers.google.com/maps/documentation/directions/) or [OSRM](https://github.com/Project-OSRM/osrm-backend/wiki/Server-api).
  - gtfs-blocks-to-transfers - A Python tool to convert GTFS blocks, defined by setting [trip.block\_id](https://github.com/google/transit/blob/master/gtfs/spec/en/reference.md#example-blocks-and-service-day) into a series of [trip-to-trip transfers (proposal)](https://github.com/google/transit/pull/303).
  - GTFS Diff - GTFS Diff is a specification created by transport.data.gouv.fr and aims at providing a simple and unified way to express differences between GTFS files.
  - GTFS Editor - A (self-hosted) web-based GTFS editing framework. (Note: this project has been deprecated in favor of [IBI Data Tools](https://github.com/ibi-group/datatools-ui).)
  - GTFS Editor for Vagrant - Quickly set up the GTFS editor (above) using [Vagrant](https://www.vagrantup.com/)
  - static-GTFS-manager - A (self-hosted) browser-based user interface for creating, editing, exporting static GTFS (see [related post](https://groups.google.com/forum/#!topic/transit-developers/GFz5rTJTB0I)).
  - TransitWand - An open source web and mobile application for collecting transit data. Use it to create GTFS feeds, capture passenger counts or generate GIS datasets.
  - IBI Data Tools - A web application that handles GTFS editing, validating, quality checking, and deploying to OpenTripPlanner. (Combines and builds upon the functionality of the deprecated [Gtfs Data Manager](https://github.com/conveyal/gtfs-data-manager) and [GTFS Editor](https://github.com/conveyal/gtfs-editor).)
  - IBI Data Tools Infra - A tool to quickly setup and run a local instance of the above IBI Data Tools project.
  - pfaedle - Precise map-matching for GTFS using OpenStreetMap data
  - GTFS shape mapfit - Python tool that fits GTFS shape files and stops to a given OSM map file. Uses [pymapmatch](https://github.com/tru-hy/pymapmatch) for the matching.
  - gtfs-station-builder - UI tool to help build the internal structure of stations (including pathways.txt)
  - GTFS Text-to-Speech Tester - A command-line tool that reads GTFS stop names out loud using Text-to-Speech to determine which need Text-to-Speech values for tts_stop_name in stops.txt.
  - Spare GTFS-Flex Builder - A free tool that helps transit agencies easily create, manage, and export their transportation data in GTFS-Flex format.
  - Chouette SaaS - Tool to generate GTFS Schedule data
  - Ara SaaS - Tool to generate GTFS Realtime data.
  - Amarillo - Aggregates and enhances carpooling-offers and publishes them as GTFS(-RT)
  - combine_gtfs_feeds - A Python tool to combine multiple gtfs feeds into one feed/dataset.
  - gtfsmerge - A Python Script to merge GTFS ZIP archives into one.
  - gtfstools - A set of convenient tools for editing and analysing transit feeds in GTFS format in R.
  - Peartree - A Python library for converting transit data into a directed graph for network analysis.
  - R5: Rapid Realistic Routing on Real-world and Reimagined networks - A Java-based routing engine developed by Conveyal for multimodal (transit/bike/walk/car) networks. It currently plans many trips over a time window for scenario planning and analytics purposes. A related R wrapper package ([r5r](https://github.com/ipeaGIT/r5r/)) is developed independently by IPEA. See also the performance comparison from Higgins et al. (2022), linked below.
  - transitr - An R package for constructing and modelling a transit network in real time to obtain vehicle ETAs
  - transit-intensity - A simple project for measuring transit intensity written in Go.
  - Busbuzzard - Inference of probabilistic schedules from empirical data about transit vehicles.
  - GTFS-to-Chart - Creates stringline charts showing all vehicles on a transit route from GTFS data.
  - GTFS Display - Analyse, monitor and maintain GTFS data ([Example instances](https://www.swingbe.de/activity/gtfs-display/)).
  - Timetable Kit - An open source Python 3.10 module and scripts depending on [GTFS Kit](https://github.com/mrcagney/gtfs_kit), designed to create complex printed/PDF timetables with flexible layouts. Currently only working out of the box for Amtrak's GTFS, but under active development.
  - TimeTablePublisher (TTPUB) - A web publishing system developed by TriMet that allows a transit agency to examine, modify, and transform raw scheduling data into easy-to-read timetables for customer information purposes
  - Conveyal's gtfs-validator - A Java-based GTFS validator based on the OneBusAway GTFS Modules, runs in Java and is faster than the Google provided one.
  - GTFS Data Package Specification - A Data Package specification with validation accomplished with Good Tables. Includes a data package, schemas, tests, and uses South East Queensland GTFS data as an example.
  - gtfstidy - A Go-based tool to tidy and validate GTFS feeds.
  - gtfsclean - A tool for checking, sanitizing, and minimizing GTFS feeds. Fork of gtfstidy, with some additional fixes that haven't been merged upstream yet.
  - gtfs-validator-api - This Python package is a thin wrapper around [MobilityData/gtfs-validator](https://github.com/MobilityData/gtfs-validator) that handles intermediate files produced and finds gtfs-validator's output file so it can be given a specific name or returned as a string.
  - GTFSVTOR - An open-source GTFS validator implemented in Java licensed under GPLv3 maintained by [Mecatran](https://www.mecatran.com/).
  - MobilityData's gtfs-validator - A open-source GTFS validator canonically following the GTFS spec implemented in Java licensed under Apache v2.0 maintained by [MobilityData](https://mobilitydata.org/).
  - Reflect GTFS Validator (hosted by Foursquare ITP) - Transit schedule and GTFS validation platform by [Foursquare ITP](https://www.foursquareitp.com) that includes a free, web-based GTFS validator based on [gtfs-lib](https://github.com/conveyal/gtfs-lib/).
  - Transit App's gtfs-fares-v2-validator - A Python tool that validators GTFS-Fares-v2 data based on the [draft specification](https://docs.google.com/document/d/19j-f-wZ5C_kYXmkLBye1g42U-kvfSVgYLkkG5oyBauY/edit#).
  - gtfs-accessiblity-validator - Validates the presence of accessiblity-related fields and files in a GTFS file. Can be a command line tool or node.js package.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - CGTFS - C library for reading static GTFS feeds. Supports reading unpacked feeds into application memory or into SQLite databases.
  - GTFS Feed Parser - .Net/Mono implementation of a GTFS parser.
  - OneBusAway GTFS Modules - A Java-based library for reading, writing, and transforming public transit data in the GTFS format, including database support.
  - gtsf - general transit (GTFS) simple (geographic) features (sf) in R. can be used to convert from GTFS to Shapefile, GeoJSON, and other formats through GDAL.
  - OSMTracker - OSMTracker is an offline GPS tracking app designed for collecting Points of Interest (POIs) and recording GPX tracks for collaborative use.
  - GTFS Text-to-Speech Tester - A command-line tool that reads GTFS stop names out loud using Text-to-Speech to determine which need Text-to-Speech values for tts_stop_name in stops.txt.
  - Conveyal's gtfs-lib - Conveyal's successor to their own [gtfs-validator](https://github.com/conveyal/gtfs-validator), a Java-based library for loading and saving GTFS feeds of arbitrary size with disk-backed storage.
  - Transport Validator - An open-source validator implemented in [Rust](https://www.rust-lang.org/). Used by the [French National Access Point](https://transport.data.gouv.fr/validation/).
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - Data-Tools Server - Server for IBI's GTFS data management platform.
  - Gtfs Data Manager - editor).)
  - GTFS Studio - Online editor for GTFS feeds
  - Uttu - Back-end for Nplan, a simple timetable editor.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - mobdb - R functions to search, discover, and access transit feed data from the [Mobility Database](https://mobilitydatabase.org/).
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
  - gtfs-via-duckdb
  - City2Graph - A Python library for converting GTFS data into graph representations for network analysis and Graph Neural Networks (GNNs). Supports loading GTFS feeds, constructing transit graphs, network centrality analysis, and isochrone-based accessibility analysis on multimodal (street + transit) networks.
  - GTFS Explorer - Web application to upload, validate and visually explore GTFS feeds, featuring an interactive network map, route and stop inspection, schedule grids, and a network statistics dashboard.
  - GTFS.org
  - ArcGIS - Introduction to GTFS
  - Yandex Maps - Transport integration - Additional Yandex-specific documentation of GTFS.
  - Spare GTFS-Flex Builder - A free tool that helps transit agencies easily create, manage, and export their transportation data in GTFS-Flex format.
  - Swiftly - Tool generate realtime transit data.
  - GTFS Studio - Online editor for GTFS feeds
- GTFS Realtime
  - GTFS-realtime Vehicle Positions Consumer/Visualizer Demo - A Java-based demo project for consuming a GTFS-realtime Vehicle Positions feed and displaying this info on a map.
  - gtfs-realtime-validator - A GTFS Realtime validation tool originally developed by the [Center for Urban Transportation Research](https://www.cutr.usf.edu/) at the University of South Florida and now maintained by [MobilityData](https://mobilitydata.org/).
  - gtfsrdb - A Python tool that supports reading and archiving GTFS-realtime feeds into a database
  - retro-gtfs - A Python application that collects real-time data from the Nextbus API and archives it into the GTFS format (i.e., retrospective GTFS).
  - Transi - A Cloud-native GTFS-RT/GTFS archiving system.
  - GTFS-Realtime-Capsule - A command-line tool that scrapes, normalizes, and archives real-time public transit data.
  - gtfsdb_realtime - Real-time GTFS database loader and ORM library
  - SIRI to GTFS-realtime - A Java-based command-line utility to convert from the [SIRI format](https://www.siri.org.uk/) to GTFS-realtime
  - Syncromatics API to GTFS-realtime - A Java-based command-line utility to convert from the [Syncromatics API](http://www.syncromatics.com/) format to GTFS-realtime TripUpdates and VehiclePositons.
  - KV6,15,17, and ARNU to GTFS-realtime - Java-based tool to process incoming KV6,15,17 and ARNU and match them to static transit data present in a RID integration database. It then proceeds to export this data as ARNU RITinfo, GTFS(realtime) and KV78turbo
  - WMATA BusPositions API to GTFS-realtime - Java-based tool to convert from WMATA's [BusPositions API](https://developer.wmata.com/docs/services/54763629281d83086473f231/operations/5476362a281d830c946a3d68) and Alert RSS feeds from [MetroAlerts](http://www.wmata.com/rider_tools/metro_service_status/rail_bus.cfm?) to GTFS-realtime TripUpdates, VehiclePositions, and Alerts feeds.
  - SEPTA API to GTFS-realtime - Java-based tool to convert [SEPTA's](http://www.septa.org/) [real-time bus and rail data](http://www3.septa.org/hackathon/) to GTFS-realtime
  - CTA API to GTFS-realtime - Java-based tool to convert [CTA's](http://www.transitchicago.com/) [Train Tracker data](http://www.transitchicago.com/developers/traintracker.aspx) to GTFS-realtime.
  - Detroit DOT to GTFS-realtime - Extract real-time info from [DDOT's](http://www.detroitmi.gov/How-Do-I/Locate-Transportation/Bus-Schedules) TransitMaster installation (database) and convert to GTFS-realtime
  - Live Transit Event Trigger - Extracts data from [Ride On's](http://www.montgomerycountymd.gov/dot-transit/) OrbCAD database and export as GTFS-realtime.
  - SoundTransit to GTFS-realtime - Convert text file feed from [Sound Transit](http://www.soundtransit.org/) to GTFS-realtime
  - Civic Transit - Screen-scrapes [KCATA’s](http://www.kcata.org/) TransitMaster WebWatch installation to produce a GTFS-realtime feed.
  - gtfs-realtime-translators - A Python-based tool to translate custom arrival API formats to GTFS-realtime. As of July 2019 it supports LA Metro and SEPTA.
  - Transloc API to GTFS-realtime - A Node.js based tool to convert the Transloc API to GTFS-realtime.
  - hafas-gtfs-rt-feed
  - bus_kalman - A Kalman Filter used to interpolate bus travel times using NYC MTA real-time data.
  - Concentrate - Combines realtime transit information from multiple sources into single output files. Maintained by [
  - gtfs-realtime-test-service - A tool for mocking GTFS-realtime feed content (e.g., for use in testing a GTFS-realtime consuming application).

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