Major release

This version includes a critical new feature to traffic assignment, a substantial performance improvement to trip distribution, support for Python 3.11, and a series of minor bug fixes and improvements in user experience.

MAJOR changes

• Adds parallelized version of Fratar by @pedrocamargo in #378
• Add select link analysis by @Jake-Moss in #377

Minor changes

• updates default endpoint for Overpass by @pedrocamargo in #385
• Adds support for Python 3.11 by @jamiecook in #384
• Allowing use of AequilibraE without a project open by @pedrocamargo in #383
• Qaequilibrae packaging by @pedrocamargo in #386
• Allows for the creation of graphs with no centroids by @pedrocamargo in #387
• Allows for the creation of graphs on projects with no centroids by @pedrocamargo in #388

Full Changelog: V0.8.0...v0.8.1

Major release with significant performance improvements

A new data structure for path finding guarantees a performance improvement of 2x to 3.5x, depending on the network and number of cores.

What's Changed

• Swap max double value for INFINITY from libc.math by @Jake-Moss in #368
• Fixes shapely behavior by @pedrocamargo in #370
• Transpose shared matrices to better cache locality by @Jake-Moss in #369
• Updates tests for new file permission structure in the runners by @pedrocamargo in #373
• Replace the internal Fibonacci heap with a 4-ary priority queue by @Jake-Moss in #374
• add spatialite utils for auto downloading and adding mod_spatialite to the path by @jamiecook in #364

New Contributors

• @Jake-Moss made their first contribution in #366

Full Changelog: V0.7.7...V0.8.0

Bug-fixing release

Bug fixes

• Fix: #365 Use specified number of cores by @Jake-Moss in #366
• Fix skim cost calculation on compact graph by @Jake-Moss in #367

Minor improvements

• Makes PyArrow an optional dependency by @pedrocamargo in #356
• Set c++ version to 17 by @jamiecook in #357
• Improved packaging by @pedrocamargo in #362

New Contributors

• @Jake-Moss made their first contribution in #366

Full Changelog: V0.7.6...V0.7.7

Minor release to support the new version of QAequilibraE

What's Changed

• Merges Develop to support first version of the plugin with local imports by @pedrocamargo in #359

Full Changelog: V.0.7.5...V0.7.6

V.0.7.5

Main Changes:

• Logging support for multiple AequilibraE projects
• Adds GMNS import/Export capabilities #330
• Speed up of gravity and IPF procedures #344

Other changes

• Code refactoring to use pytest
• Update to deprecated NumPy code

Major new release

What's Changed

Main changes:

• Support for multiple projects by @elfjes in #323
• Matrix from list by @daniloebbinghaus in #325
• Speed up of OSM network import by @pedrocamargo in #319
• Setup of NumPy requirement to <=1.21 by @pedrocamargo in #311
• Issue fix related to max node_id being a centroid by @pedrocamargo in #308

Other changes

• closes issue #303 by @pedrocamargo in #304
• Improves database structure by @pedrocamargo in #310
• Sets up better tests by @pedrocamargo in #313
• Run black on all source files by @elfjes in #318
• Adding conda_forge_recipe to develop branch (correction from pull request 314) by @daniloebbinghaus in #315
• Pedro/new test fix by @pedrocamargo in #322
• only run actions that require secrets from the Aequilbrae account. by @jamiecook in #329
• Support logging for multiple projects, log most warnings instead of raising them by @elfjes in #327

New Contributors

• @daniloebbinghaus made their first contribution in #282
• @elfjes made their first contribution in #318

Full Changelog: V0.7.3...V.0.7.4

Major new version

What's Changed

New features:

French INRETS and bpr2 VD functions (#273)
Adds the obvious field vot (Value-of-Time) to the modes table and creates and adds a script for compiling that may be useful during development
Bug fixes/Improvements:

Allows for skims to be set after the creation of traffic classes
Improvement on skim saving
Fixes creation of skim matrices on multi-class assignment
Makes feather optional on import
Documentation:

Adds new instructions for contribution by @pedrocamargo in #275
documentation correction (#282)
Software improvements

Updates shapely deprecated methods (#281)
Improves performance of triggers (#278)
Workflow test by @pedrocamargo in #276
fixes traffic assignment tests (#293)
Follows the Wikimedia user-agent policy (#295)

Full Changelog: V0.7.2...V0.7.3

Major release with important new features

Key new features have been added to AequilibraE:

• Generalized cost functions for assignment with class-specific formulations are now supported
• Allows for saving full path-file during assignment (experimental)
• Python 3.9 support (OpenMatrix still has no official 3.9 support on Windows due to the lack of PyTables binaries)
• Improved traffic assignment result reporting
• Creation of Delaunay Lines through the API

Documentation:

• Marginal improvements on the API documentation
• New example for the creation of a project from a Link layer
• Example for the creation of Delaunay Lines
• Example for the detection of disconnected links and nodes

Deprecations:

• Python 3.6 is no longer supported

What's Changed

• fixes setting number of cores for assignment with positive integer by @janzill in #231
• Introduces supernetwork graph ID across entire assignment by @pedrocamargo in #234
• Gen cost by @pedrocamargo in #236
• Adds upload to S3 by @pedrocamargo in #227
• Addresses issue #238 by @pedrocamargo in #240
• Adds missing information to assignment results/report by @pedrocamargo in #245
• fixes skim creation of simplified graph by @janzill in #248
• fixes CFW step direction edge case by @janzill in #249
• Fix shortest path calculation when the predecessor of destination node is node index 0 by @barisdemirdelen in #256
• Fix volume over capacity calculation for assignment results by @barisdemirdelen in #255
• Fix vdf not calculated last iteration of assignment by @barisdemirdelen in #254
• Fix shortest path calculation with blocking centroids by @barisdemirdelen in #257
• fixes cfw stepdirection bug by @janzill in #258
• janzill/pathfilesaving by @janzill in #253
• Adds tests to make sure computing paths behaves properly on disconnected networks by @pedrocamargo in #262
• Adds Python 3.9 support by @pedrocamargo in #265
• Documentation by @pedrocamargo in #266
• Adds new example for finding disconnected nodes in a network by @pedrocamargo in #269
• Incorporates the creation of Delaunay Lines in the API by @pedrocamargo in #268
• Deals with type differences when saving/loading feather files by @pedrocamargo in #271
• Pedro/documentation by @pedrocamargo in #267

New Contributors

• @barisdemirdelen made their first contribution in #256

Full Changelog: 0.7.1...V0.7.2

Minor release

This version brings the following major improvements to AequilibraE:

New Features:

• Added to support to the Conical Volume-delay function by user request

Performance improvements:

• Much smoother traffic assignment convergence when using the Biconjugate Frank-Wolfe for multi-class assignment, thanks to a term that was missing from the conjugate direction computation and that was added by @janzill
  • Tests on large scale networks with multiple classes point to a substantial performance gain with 10% faster convergence
• Graph object is built on top of Pandas instead of NumPy record arrays, resulting in substantial improvements
  • Creation of graphs is slightly faster
  • Easier manipulation in memory for advanced users
• Skimming and traffic assignment are up to 3x faster with the incorporation of a topological network simplification algorithm. Performance gains are highly dependent on network topology. For typical real-world models, a speedup between 2 and 2.75x can be expected.

Bugfixes:

• Installation now correctly requires SciPy
• Example project for Sioux Falls now has the correct parameter file associated with it
• Assignment with multiple classes using the same graph works as expected now
• Matrix export to CSV has been fixed and is up to 10x faster

User experience

• New error catching when setting up assignment prevents common mistakes

Deprecated methods:

• The graph object no longer has the method "create_from_geography"

Major new release

New AequilibraE project infrastructure:

• link_types table
• Matrices table
• Results database

Improvement of existing infrastructure

• Building of networks Open-Street Maps importer is now 10 times faster, and the user can choose the Overpass API mirror they will use for downloading, enabling the use of locally-deployed mirrors for the construction of large networks
• The Nodes layer now has fields for nodes and link types terminating in them
• Assignment results are not generated as Pandas Dataframe
• Fast saving traffic assignment results in SQLite using Pandas
• Project-specific log files

Improvement of existing API:

• Simplified skimming and path computation API

New API capabilities

• Adding centroid connectors with the API
• Editing links and nodes
• Matrix metadata manipulation
• Log review/clearing