Releases · AequilibraE/aequilibrae

19 Oct 06:50

pedrocamargo

V0.7.2

a779a9d

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

Contributors

barisdemirdelen, pedrocamargo, and janzill

Assets 13

18 Feb 10:14

pedrocamargo

0.7.1

78a24fc

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"

Assets 15

14 Jan 09:17

pedrocamargo

v0.7.0

afa08c0

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

Assets 14

07 Jul 03:51

pedrocamargo

V0.6.5

2cc9292

Minor release with new feature

MInor release with support for tracking link directionality on path computation

Assets 15

23 Apr 08:02

pedrocamargo

V0.6.4

2376874

Minor release

Bug fixes:

Fixes an edge case error for CFW and BFW assignments that occurred when neither a CFW/BFW iteration nor an FW iteration could find a feasible step size for the computed step direction.
Adds proper error treatment for the case where computations are attempted before the cost field is chosen

Enhancements:

Convergence report is now kept in memory as a dictionary formatted in a convenient way to convert to Pandas DataFrame
Allows computations to be done when there are no centroids in the graph

DevOps:
Documentation is now hosted on Amazon AWS S3 buckets, and all workflows were updated to upload documentation to the right place.

Assets 15