7.3
- Performance Enhancements
- Car Routing & Accessibility: Completely recoded the car routing
database construction
and car accessibility computation blocks, delivering a 5-fold increase
in performance.
- Transit Accessibility: Optimized core transit accessibility
algorithms, achieving a 30%
speedup in computation times.
- User Interface & Workflow Improvements
- Roundtrip Parameters: Added the "Minimal time gap between arrival
and trip back"
parameter directly to the Roundtrip UI, replacing the implicit
zero-value default from
previous versions.
- Input Validation Highlighting: Dialog controls with missing or
invalid parameters are now
highlighted in yellow, automatically returning to normal coloring once
valid parameters
are provided.
- Compare Dialog Redesign:
- Reorganized the Compare dialog.
- Control fields for comparison tables and attributes now start empty
to prevent
accidental selections.
- The "Relative difference" option is deprecated and removed.
- Folder Selection: Fixed folder selection dialog behavior across
operating systems.
- Map Computations & Data Analysis
- Service Area Limits & Attributes:
- The "By destination" option now supports up to 1,000 destinations.
- Added two new metrics to the "By destination" output table:
No_reachable
(number of reachable destinations) and Duration_mean (average travel
time to
reachable destinations).
- Added a safeguard to prevent selecting the same layer for both
origins and
destinations.
- Cumulative Opportunities Maps:
- Roundtrip maps are now computed for all chosen attributes rather
than only the
first one.
- Eliminated the unnecessary generation "By destinations" tables
during
cumulative opportunities computations.
- Voronoi Layer Generation: The "Build visualization layers" routine
now automatically
adds to the project a Voronoi polygon layer based on the cleaned
building centroids.
- Bug Fixes & Refinements
- Hexagon Layers: Fixed a bug that caused calculation errors in
Roundtrip maps when
processing layer names containing the "_hex" part.
- Color Ramp Refresh: Fixed an issue where the color ramp failed to
refresh correctly
upon updating results.
- Numeric Attributes: Fixed an error in the "Build visualization
layers" algorithm that
previously blocked records with empty values in numeric attributes.
7.2
- New Feature: Exact mode for schedule-based accessibility
calculations.
- Minor bugs fixes
7.1
- Maximum lag imbalance ratio (k) is included into the ROUNDTRIP UI
dialog
7.0
- New "Roundtrip" Approach to Accessibility Computations: A novel
roundtrip methodology for accessibility computations is finalized.
- UI & UX Refresh: Restructured and clarified the main menu and dialog
boxes for a more intuitive user experience.
- JSON Integration: By leveraging GTFS datasets and the layers of road
network and buildings layers, the transit and car routing databases
are constructed to enable rapid data retrieval during accessibility
computations. This integration replaces the pkl format used in
previous versions, which was recently flagged as a security risk by
QGIS.
- GeoPackage Integration: Computational outputs are now natively
stored in the GeoPackage format for better data interoperability.
- Dynamic GTFS Editing: Added the ability to directly modify GTFS data
by adding or deleting transit lines.
- Documentation: Updated the official tutorial to reflect all recent
features and accumulated changes.
- Bug Fixes: Resolved minor bugs and improved general stability.
6.3 (experimental)
- Feature Update: Introduced Roundtrip accessibility analysis.
6.2
- Maintenance: Fixed minor bugs.
6.1
- Maintenance: Fixed minor bugs.
6.0
- UI Enhancements: Improved and clarified user interface layouts and
dialog boxes.
- Streamlined Workflow: Restructured the processing pipeline by
removing the standalone "Database Construction" menu section.
- Transit routing database construction is now integrated directly
into the transit accessibility calculations block.
- Car routing database construction is now integrated directly into
the car accessibility calculations block.
- Contextual Help: Added dedicated explanation panels to the right
side of option dialogs to guide users.
- Global Testing: Tested and validated the software across multiple
global GTFS datasets representing diverse international cities.
- Performance: Significantly optimized the execution speed of core
computational procedures.
- Data Validation: Added a pre-construction validation check to test
the availability and completeness of road layer attributes.

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