eclipse-sumo/sumo
Jan 2025 – Feb 2026
14 Months active
Languages Used
C++MarkdownN/ANetgenPlain TextPythonSUMO ConfigurationSUMO Script
Technical Skills
Backend DevelopmentBug FixBug FixingBuild ConfigurationBuild SystemBuild System Configuration
Jakob Erdmann
PROFILE
Jakob Erdmann
Jakob Erdmann developed and maintained core simulation and routing features for the eclipse-sumo/sumo repository, focusing on robust data integration, test-driven development, and scalable performance. He engineered enhancements to routing algorithms, braking logic, and network import pipelines, leveraging C++ and Python to optimize data processing, simulation accuracy, and UI responsiveness. His work included expanding automated test coverage, refining XML schema validation, and improving configuration management, which reduced regression risk and improved release reliability. Through systematic code refactoring and documentation updates, Jakob ensured maintainability and traceability, enabling faster iteration and supporting complex transportation modeling scenarios across diverse deployment environments.
Overall Statistics
Feature vs Bugs
43%Features
Repository Contributions
2,820Total
Bugs
760
Commits
2,820
Features
566
Lines of code
1,693,264
Activity Months14
Your Network
77 peopleSame Organization
@dlr.de37
Shared Repositories
40
Dániel TakácsMember
Abdullah Bin Omer ZiaMember
aminissnMember
Angelo BanseMember
Arif BudimanMember
Ettore AtalanMember
Benjamin CouéraudMember
Seongjin ChoiMember
chengyutangMember
Work History
February 2026
154 Commits • 37 Features
Feb 1, 2026February 2026 (2026-02) for eclipse-sumo/sumo was a productivity-focused sprint delivering broad test coverage, stability fixes, and UI/data presentation enhancements that reduce risk and improve operator confidence. The work emphasized regression safety, maintainability, and clear documentation to support faster, reliable releases.
154 Commits • 37 Features
Feb 1, 2026February 2026 (2026-02) for eclipse-sumo/sumo was a productivity-focused sprint delivering broad test coverage, stability fixes, and UI/data presentation enhancements that reduce risk and improve operator confidence. The work emphasized regression safety, maintainability, and clear documentation to support faster, reliable releases.
February 2026
January 2026
301 Commits • 52 Features
Jan 1, 2026January 2026 (Month: 2026-01) Development Monthly Summary for eclipse-sumo/sumo Overview: The team delivered significant braking feature enhancements, expanded test coverage, and improved reliability across Linux test environments. The changes emphasize safety, maintainability, and traceability, enabling faster iteration and clearer business value realization. Key features delivered: - Braking behavior enhancements: can setStop without brake gap error; perform strong braking to stop; and exceed emergency deceleration limits to stop (Refs #17477). - Remove options for loading unneeded files: simplified configuration and reduced resource usage. - Test Suite Expansion: expanded test coverage and reorganized tests, including moving jump tests to their own suite and adding braking/CH behavior tests. - Add and update tests for braking/CH behavior: new and updated tests with aligned expectations (Refs #21, #17477). - Export Block ID: introduces exporting of block_id references to improve traceability (#17541). - Test References Metadata: added explicit test reference metadata to commits to track related issues (#21, #17540, #17542, #17543). Major bugs fixed: - Linux test environment: fixed warnings and ASCII encoding issues related to fileinput usage, improving test reliability in Linux environments. - Fixed outdated CH behavior description in multimodal networks and related test expectations. - Fixes for broken links across the project and alignment of test expectations across multiple issues (#17480, #17481, #17482, #10246, etc.). Overall impact and accomplishments: - Increased safety and reliability of braking features, enabling safer automated stopping under a wider set of scenarios. - Broader test coverage and improved test stability reduce regression risk and accelerate delivery cycles. - Improved maintainability through refactoring, documentation updates, and better changelog traceability. Technologies/skills demonstrated: - Python-based test tooling, test-driven development, and test suite maintenance. - Linux environment troubleshooting (warnings, encoding), and GCC debug build diagnostics. - Git-driven workflow with extensive commit-level traceability and test-result patching. - Documentation and changelog management to keep stakeholders aligned.
January 2026
301 Commits • 52 Features
Jan 1, 2026January 2026 (Month: 2026-01) Development Monthly Summary for eclipse-sumo/sumo Overview: The team delivered significant braking feature enhancements, expanded test coverage, and improved reliability across Linux test environments. The changes emphasize safety, maintainability, and traceability, enabling faster iteration and clearer business value realization. Key features delivered: - Braking behavior enhancements: can setStop without brake gap error; perform strong braking to stop; and exceed emergency deceleration limits to stop (Refs #17477). - Remove options for loading unneeded files: simplified configuration and reduced resource usage. - Test Suite Expansion: expanded test coverage and reorganized tests, including moving jump tests to their own suite and adding braking/CH behavior tests. - Add and update tests for braking/CH behavior: new and updated tests with aligned expectations (Refs #21, #17477). - Export Block ID: introduces exporting of block_id references to improve traceability (#17541). - Test References Metadata: added explicit test reference metadata to commits to track related issues (#21, #17540, #17542, #17543). Major bugs fixed: - Linux test environment: fixed warnings and ASCII encoding issues related to fileinput usage, improving test reliability in Linux environments. - Fixed outdated CH behavior description in multimodal networks and related test expectations. - Fixes for broken links across the project and alignment of test expectations across multiple issues (#17480, #17481, #17482, #10246, etc.). Overall impact and accomplishments: - Increased safety and reliability of braking features, enabling safer automated stopping under a wider set of scenarios. - Broader test coverage and improved test stability reduce regression risk and accelerate delivery cycles. - Improved maintainability through refactoring, documentation updates, and better changelog traceability. Technologies/skills demonstrated: - Python-based test tooling, test-driven development, and test suite maintenance. - Linux environment troubleshooting (warnings, encoding), and GCC debug build diagnostics. - Git-driven workflow with extensive commit-level traceability and test-result patching. - Documentation and changelog management to keep stakeholders aligned.
December 2025
179 Commits • 36 Features
Dec 1, 2025Monthly summary for 2025-12 focusing on eclipse-sumo/sumo. Highlights include key features delivered, major bugs fixed, overall impact, and technologies demonstrated. This month extended data integration and performance, expanded test coverage, and improved user experience while strengthening maintainability. Key features delivered: - Added Link feature to improve navigation and data traceability (commit 8a91e8003c41c2f2343dcac9afbd546b7f18a2ee). - GTFS import with OSM stops to enhance transit data ingestion and routing accuracy (commit 47c79319bcd301812806a7939dcd07385759a184). - Added Tests for critical references to increase regression confidence (commit 1ac736169724e22843258c5e08216c713558f7ba; additional test references in later commits across the month). - Optimize search space pruning to improve performance on large datasets (commit 83c356baa0a034d198f69d4f56dd94374b414217). - UI scaling support from the OpenGL GUI Settings tab (commit 1c4b1d6e681d2f22073a5cc7ab977b38ebf7b2d9) with associated refactoring for maintainability. - Supporting infrastructure work including code refactoring and router/prohibition type improvements to reduce technical debt (multiple commits). Major bugs fixed: - Core behavioral fixes addressing forbidden lanes and related edge cases (commits around 299e2d0494670cd3d0535f192ff2164c039e5627, c1c725f3309e80252f577bd4f72b922df757b183). - Test result alignment and expected-result patches across refs (#21, #16421, #17383, #17387, #17401–#17404). - Pre-computation/expectation adjustments for complex test scenarios (e.g., #17411). - Miscellaneous fixes including typo, formatting, and build/stability improvements. Overall impact and accomplishments: - Significantly reduced regression risk via broadened test coverage and alignment with updated baselines. - Improved data interoperability (GTFS, railway import), and performance at scale due to search-space pruning. - Enhanced user experience with UI scaling options and cleaner UI/UX through refactoring. - Stronger maintainability and lower future maintenance cost due to codebase refactorings and style cleanups. Technologies/skills demonstrated: - C++ performance optimizations, test-driven development, and modernized test references. - OpenGL-based UI considerations and user experience improvements. - Data integration pipelines (GTFS) and batch data imports (railway network). - Code refactoring, style cleanup, and consistency improvements across the repository.
179 Commits • 36 Features
Dec 1, 2025Monthly summary for 2025-12 focusing on eclipse-sumo/sumo. Highlights include key features delivered, major bugs fixed, overall impact, and technologies demonstrated. This month extended data integration and performance, expanded test coverage, and improved user experience while strengthening maintainability. Key features delivered: - Added Link feature to improve navigation and data traceability (commit 8a91e8003c41c2f2343dcac9afbd546b7f18a2ee). - GTFS import with OSM stops to enhance transit data ingestion and routing accuracy (commit 47c79319bcd301812806a7939dcd07385759a184). - Added Tests for critical references to increase regression confidence (commit 1ac736169724e22843258c5e08216c713558f7ba; additional test references in later commits across the month). - Optimize search space pruning to improve performance on large datasets (commit 83c356baa0a034d198f69d4f56dd94374b414217). - UI scaling support from the OpenGL GUI Settings tab (commit 1c4b1d6e681d2f22073a5cc7ab977b38ebf7b2d9) with associated refactoring for maintainability. - Supporting infrastructure work including code refactoring and router/prohibition type improvements to reduce technical debt (multiple commits). Major bugs fixed: - Core behavioral fixes addressing forbidden lanes and related edge cases (commits around 299e2d0494670cd3d0535f192ff2164c039e5627, c1c725f3309e80252f577bd4f72b922df757b183). - Test result alignment and expected-result patches across refs (#21, #16421, #17383, #17387, #17401–#17404). - Pre-computation/expectation adjustments for complex test scenarios (e.g., #17411). - Miscellaneous fixes including typo, formatting, and build/stability improvements. Overall impact and accomplishments: - Significantly reduced regression risk via broadened test coverage and alignment with updated baselines. - Improved data interoperability (GTFS, railway import), and performance at scale due to search-space pruning. - Enhanced user experience with UI scaling options and cleaner UI/UX through refactoring. - Stronger maintainability and lower future maintenance cost due to codebase refactorings and style cleanups. Technologies/skills demonstrated: - C++ performance optimizations, test-driven development, and modernized test references. - OpenGL-based UI considerations and user experience improvements. - Data integration pipelines (GTFS) and batch data imports (railway network). - Code refactoring, style cleanup, and consistency improvements across the repository.
December 2025
November 2025
15 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for eclipse-sumo/sumo. Focused on delivering quantitative metrics enhancements, stabilizing data processing, and improving maintainability. Key outcomes include: 1) Flow and overlapDensity metrics enhancements with updates to XML schemas, data processing, and SUMO outputs, enabling more accurate reporting of traffic throughput and overlapping-segment density. Tests and documentation updated to reflect the changes. 2) Bug fixes and minor documentation/test corrections that improve reliability and messaging without changing core functionality (addressing futureWarning, typos, projection notes, and test-data integrity). 3) Overall impact: improved analytics accuracy, more reliable data pipelines, and clearer documentation for users and operators; enabling better traffic planning decisions. 4) Technologies/skills demonstrated: XML schema design, data processing extension, test-driven development, documentation and changelog maintenance, and robust version-control practices evidenced by commits addressing issues #16241, #17284, #21, #17283, and related notes.
November 2025
15 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for eclipse-sumo/sumo. Focused on delivering quantitative metrics enhancements, stabilizing data processing, and improving maintainability. Key outcomes include: 1) Flow and overlapDensity metrics enhancements with updates to XML schemas, data processing, and SUMO outputs, enabling more accurate reporting of traffic throughput and overlapping-segment density. Tests and documentation updated to reflect the changes. 2) Bug fixes and minor documentation/test corrections that improve reliability and messaging without changing core functionality (addressing futureWarning, typos, projection notes, and test-data integrity). 3) Overall impact: improved analytics accuracy, more reliable data pipelines, and clearer documentation for users and operators; enabling better traffic planning decisions. 4) Technologies/skills demonstrated: XML schema design, data processing extension, test-driven development, documentation and changelog maintenance, and robust version-control practices evidenced by commits addressing issues #16241, #17284, #21, #17283, and related notes.
October 2025
317 Commits • 65 Features
Oct 1, 2025Monthly summary for 2025-10 (eclipse-sumo/sumo): Delivered core feature 16448 detour filtering with initial support, versioning, test scaffolding, and test references; added Overtaking reroute definitions support with multi-definition reading and comparison (refs #5208); expanded and modernized the test suite with refactoring and targeted coverage for issues including 17152, 17154, 17160, 17168, 17180, 17203, 17229-17230. Implemented routing performance and reliability improvements such as bulk-routing speedups, disabling reversals on sidings, and improved savings computation, along with new options (max-length) and the ability to load multiple route files. Strengthened deferral/default behavior and enhanced link/POI data mode notes and route ID comments. Completed documentation updates and changelog hygiene to reflect batch changes. Fixed a broad set of stability and correctness issues impacting tests and runtime, including unreachable destination handling (17166), simulation-related issues (17160), various test-result patches across 17167/17282/17283 and related items, and several build-system fixes for Linux/macOS. Overall impact: faster, more reliable routing decisions; improved test traceability from tests to issues; and a more maintainable, scalable codebase. Technologies/skills demonstrated: test-driven development and test automation, build-system stabilization, code refactoring, debugging, and documentation.
317 Commits • 65 Features
Oct 1, 2025Monthly summary for 2025-10 (eclipse-sumo/sumo): Delivered core feature 16448 detour filtering with initial support, versioning, test scaffolding, and test references; added Overtaking reroute definitions support with multi-definition reading and comparison (refs #5208); expanded and modernized the test suite with refactoring and targeted coverage for issues including 17152, 17154, 17160, 17168, 17180, 17203, 17229-17230. Implemented routing performance and reliability improvements such as bulk-routing speedups, disabling reversals on sidings, and improved savings computation, along with new options (max-length) and the ability to load multiple route files. Strengthened deferral/default behavior and enhanced link/POI data mode notes and route ID comments. Completed documentation updates and changelog hygiene to reflect batch changes. Fixed a broad set of stability and correctness issues impacting tests and runtime, including unreachable destination handling (17166), simulation-related issues (17160), various test-result patches across 17167/17282/17283 and related items, and several build-system fixes for Linux/macOS. Overall impact: faster, more reliable routing decisions; improved test traceability from tests to issues; and a more maintainable, scalable codebase. Technologies/skills demonstrated: test-driven development and test automation, build-system stabilization, code refactoring, debugging, and documentation.
October 2025
September 2025
225 Commits • 49 Features
Sep 1, 2025September 2025 monthly summary for eclipse-sumo/sumo: Delivered substantial routing reliability and test coverage across diverse issues, with emphasis on business value through stable core routing, maintainability, and scalable tooling. Implemented routingType adoption across routers and routing modes, improved error messaging, expanded test coverage, and stabilized the Linux build. Data scaling capabilities were introduced via a data scaling UI and migration to dataScaler, enhancing data handling and operator control. A major API refactor (rename) and multiple schema/XSD updates were completed, along with extensive documentation and changelog improvements to reflect changes.
September 2025
225 Commits • 49 Features
Sep 1, 2025September 2025 monthly summary for eclipse-sumo/sumo: Delivered substantial routing reliability and test coverage across diverse issues, with emphasis on business value through stable core routing, maintainability, and scalable tooling. Implemented routingType adoption across routers and routing modes, improved error messaging, expanded test coverage, and stabilized the Linux build. Data scaling capabilities were introduced via a data scaling UI and migration to dataScaler, enhancing data handling and operator control. A major API refactor (rename) and multiple schema/XSD updates were completed, along with extensive documentation and changelog improvements to reflect changes.
August 2025
19 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for eclipse-sumo/sumo focusing on robustness, consistency, and maintainability of the network import and netconver t pipelines. Delivered geometry rounding and precision improvements across NB and network components, standardized edge speeds, enhanced junction handling, and updated docs. These efforts reduced import variance, improved stability, and sharpened test alignment, enabling more reliable data pipelines and faster downstream processing.
19 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for eclipse-sumo/sumo focusing on robustness, consistency, and maintainability of the network import and netconver t pipelines. Delivered geometry rounding and precision improvements across NB and network components, standardized edge speeds, enhanced junction handling, and updated docs. These efforts reduced import variance, improved stability, and sharpened test alignment, enabling more reliable data pipelines and faster downstream processing.
August 2025
July 2025
226 Commits • 39 Features
Jul 1, 2025July 2025 performance summary for eclipse-sumo/sumo focused on strengthening reliability, coverage, and performance while advancing routing capabilities and developer tooling. Delivered new features for routing and test instrumentation, improved maintainability through refactoring, and enhanced documentation and CI reliability. Major bugs fixed spanned core functionality, schema conformity, and test/result alignment, reducing production risk and enabling faster iteration. Extensive test coverage and regression safety were achieved via a large suite of tests and patching strategies across numerous issues. Resulting changes reduce noise in operations, improve developer experience, and provide a solid foundation for upcoming routing enhancements and feature work.
July 2025
226 Commits • 39 Features
Jul 1, 2025July 2025 performance summary for eclipse-sumo/sumo focused on strengthening reliability, coverage, and performance while advancing routing capabilities and developer tooling. Delivered new features for routing and test instrumentation, improved maintainability through refactoring, and enhanced documentation and CI reliability. Major bugs fixed spanned core functionality, schema conformity, and test/result alignment, reducing production risk and enabling faster iteration. Extensive test coverage and regression safety were achieved via a large suite of tests and patching strategies across numerous issues. Resulting changes reduce noise in operations, improve developer experience, and provide a solid foundation for upcoming routing enhancements and feature work.
June 2025
175 Commits • 35 Features
Jun 1, 2025June 2025 highlights for eclipse-sumo/sumo: Delivered substantial improvements in test coverage, reliability, and documentation, along with persistence/IO enhancements, API alignment, and targeted performance/determinism improvements. Resolved key crashes and routing edge cases, stabilizing production-like workloads and improving confidence in releases.
175 Commits • 35 Features
Jun 1, 2025June 2025 highlights for eclipse-sumo/sumo: Delivered substantial improvements in test coverage, reliability, and documentation, along with persistence/IO enhancements, API alignment, and targeted performance/determinism improvements. Resolved key crashes and routing edge cases, stabilizing production-like workloads and improving confidence in releases.
June 2025
May 2025
219 Commits • 53 Features
May 1, 2025May 2025 monthly summary for eclipse-sumo/sumo: Delivered substantive business-value through documentation enhancements, testing and QA improvements, and targeted refactoring, resulting in clearer onboarding, more reliable builds, and faster validation cycles. Core accomplishments include comprehensive Documentation and Tutorials Updates, expanded Tests and References, improved cross-version Output Filtering, and Constness refactoring, complemented by Changelog updates and documentation clarifications. Major bug fixes spanned critical issues such as #16626, #16641, #16642, and #16602, with additional stability improvements to race conditions in core execution and TLS-related workflows. Overall, this work reduced release risk, improved developer productivity, and strengthened the product’s reliability across Python versions and test environments.
May 2025
219 Commits • 53 Features
May 1, 2025May 2025 monthly summary for eclipse-sumo/sumo: Delivered substantive business-value through documentation enhancements, testing and QA improvements, and targeted refactoring, resulting in clearer onboarding, more reliable builds, and faster validation cycles. Core accomplishments include comprehensive Documentation and Tutorials Updates, expanded Tests and References, improved cross-version Output Filtering, and Constness refactoring, complemented by Changelog updates and documentation clarifications. Major bug fixes spanned critical issues such as #16626, #16641, #16642, and #16602, with additional stability improvements to race conditions in core execution and TLS-related workflows. Overall, this work reduced release risk, improved developer productivity, and strengthened the product’s reliability across Python versions and test environments.
April 2025
382 Commits • 86 Features
Apr 1, 2025April 2025 monthly summary for eclipse-sumo/sumo. Focused on test baseline modernization, routing reliability, and stability improvements while advancing performance-oriented features. Delivered extensive test expectations patches, new tests, and baseline updates; implemented reroute enhancements for sub-driveways and updated approach reset logic; fixed critical build and driveway-related issues; introduced speedTable/valueTables usage and accelProfile support across models; enhanced documentation, changelogs, and testing infrastructure while preserving code readability and maintainability. Business value centers on more reliable routing, faster feedback from tests, and clearer configuration options for operators.
382 Commits • 86 Features
Apr 1, 2025April 2025 monthly summary for eclipse-sumo/sumo. Focused on test baseline modernization, routing reliability, and stability improvements while advancing performance-oriented features. Delivered extensive test expectations patches, new tests, and baseline updates; implemented reroute enhancements for sub-driveways and updated approach reset logic; fixed critical build and driveway-related issues; introduced speedTable/valueTables usage and accelProfile support across models; enhanced documentation, changelogs, and testing infrastructure while preserving code readability and maintainability. Business value centers on more reliable routing, faster feedback from tests, and clearer configuration options for operators.
April 2025
March 2025
306 Commits • 65 Features
Mar 1, 2025March 2025 for eclipse-sumo/sumo delivered focused feature work, stability fixes, and test/CI enhancements that collectively improve reliability, data handling, and performance for production simulations.
March 2025
306 Commits • 65 Features
Mar 1, 2025March 2025 for eclipse-sumo/sumo delivered focused feature work, stability fixes, and test/CI enhancements that collectively improve reliability, data handling, and performance for production simulations.
February 2025
220 Commits • 32 Features
Feb 1, 2025February 2025 for eclipse-sumo/sumo focused on increasing release readiness, reliability, and developer productivity. Key outcomes include expanded test coverage and test infrastructure, comprehensive documentation updates, and major stability fixes across core simulation paths (ride matching, mustOverTakeStopped, last-edge taxi handling, and busStop integration). Notable improvements to tooling, debugging options, and CI reliability, plus UI/UX enhancements for decals and bubble behavior. These efforts reduce regression risk, improve user guidance, and accelerate future development.
220 Commits • 32 Features
Feb 1, 2025February 2025 for eclipse-sumo/sumo focused on increasing release readiness, reliability, and developer productivity. Key outcomes include expanded test coverage and test infrastructure, comprehensive documentation updates, and major stability fixes across core simulation paths (ride matching, mustOverTakeStopped, last-edge taxi handling, and busStop integration). Notable improvements to tooling, debugging options, and CI reliability, plus UI/UX enhancements for decals and bubble behavior. These efforts reduce regression risk, improve user guidance, and accelerate future development.
February 2025
January 2025
82 Commits • 13 Features
Jan 1, 2025January 2025 delivered targeted routing stability, expanded flow coverage, and stronger testing/release hygiene for eclipse-sumo/sumo. Key features improved routing accuracy and template generation, while extensive test scaffolding and cleanup reduced regression risk and maintenance overhead. Overall, these efforts increased reliability, scalability of routing decisions, and speed of iteration for future batches.
January 2025
82 Commits • 13 Features
Jan 1, 2025January 2025 delivered targeted routing stability, expanded flow coverage, and stronger testing/release hygiene for eclipse-sumo/sumo. Key features improved routing accuracy and template generation, while extensive test scaffolding and cleanup reduced regression risk and maintenance overhead. Overall, these efforts increased reliability, scalability of routing decisions, and speed of iteration for future batches.
Activity
Loading activity data...
Quality Metrics
Correctness87.4%
Maintainability87.2%
Architecture82.8%
Performance79.6%
AI Usage20.2%
Skills & Technologies
Programming Languages
C++CMakeCSVConfigurationDuarouterGnuplotHTMLJSONJavaJavaScript
Technical Skills
3D GraphicsAPI DesignAPI DevelopmentAPI ImprovementAlgorithm DesignAlgorithm DevelopmentAlgorithm ImplementationAlgorithm OptimizationAlgorithm RefinementAlgorithm optimizationArgument ParsingAssertion ProgrammingAsset IntegrationAutomationAutomotive Systems
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline