OpenRailAssociation/osrd
Nov 2024 – Feb 2026
15 Months active
Languages Used
KotlinGradleJavaPythonTOMLRustYAMLTypeScript
Technical Skills
Backend DevelopmentSimulationAlgorithm DevelopmentDependency ManagementETCSEmbedded Systems
Erashin
PROFILE
Erashin
Overall Statistics
Feature vs Bugs
86%Features
Repository Contributions
74Total
Bugs
4
Commits
74
Features
25
Lines of code
22,831
Activity Months15
Your Network
74 people
Work History
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary for OpenRailAssociation/osrd: Implemented a default 12-hour timeout for failed simulations to improve robustness and ensure consistent post-failure handling. The change reduces flaky runs and stabilizes automated tests and CI pipelines. Commit 4c07dd8bda9d7109e413d07918bfdb81b7b0e4bd includes the fix with standard patch hygiene (Signed-off-by).
1 Commits
Feb 1, 2026February 2026 monthly summary for OpenRailAssociation/osrd: Implemented a default 12-hour timeout for failed simulations to improve robustness and ensure consistent post-failure handling. The change reduces flaky runs and stabilizes automated tests and CI pipelines. Commit 4c07dd8bda9d7109e413d07918bfdb81b7b0e4bd includes the fix with standard patch hygiene (Signed-off-by).
February 2026
January 2026
2 Commits • 1 Features
Jan 1, 2026Concise monthly summary for 2026-01 focusing on business value and technical achievements: Delivered Explorer Component Refactor and Naming Consistency in OpenRailAssociation/osrd to improve clarity, reuse, and cross-functional usability in Pathfinding features. Key changes include renaming the initialization method for infrastructure explorers and renaming StdcmStep to ExplorerStep, enabling shared usage across Pathfinding and StdcmPathfinding. No major bugs fixed this month; the refactor reduces ambiguity, mitigates future maintenance risk, and accelerates future feature delivery. Overall impact: clearer codebase, easier onboarding for new engineers, and stronger cross-module collaboration, translating to faster delivery of exploration/pathfinding capabilities. Technologies/skills demonstrated: refactoring discipline, naming conventions, cross-module collaboration, and effective version-control hygiene.
January 2026
2 Commits • 1 Features
Jan 1, 2026Concise monthly summary for 2026-01 focusing on business value and technical achievements: Delivered Explorer Component Refactor and Naming Consistency in OpenRailAssociation/osrd to improve clarity, reuse, and cross-functional usability in Pathfinding features. Key changes include renaming the initialization method for infrastructure explorers and renaming StdcmStep to ExplorerStep, enabling shared usage across Pathfinding and StdcmPathfinding. No major bugs fixed this month; the refactor reduces ambiguity, mitigates future maintenance risk, and accelerates future feature delivery. Overall impact: clearer codebase, easier onboarding for new engineers, and stronger cross-module collaboration, translating to faster delivery of exploration/pathfinding capabilities. Technologies/skills demonstrated: refactoring discipline, naming conventions, cross-module collaboration, and effective version-control hygiene.
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025: OpenRailAssociation/osrd delivered key safety and UI enhancements for ETCS features. Key contributions include: ETCS speed-distance diagram UI enhancements with reticle info, translations, and improved display of braking types and speeds; strengthening braking curve safety with a monotonicity fix to envelope parts and accompanying tests; expanded test coverage across scenarios and edge cases; improved maintainability and traceability through clean commit messages and sign-offs. Business impact: improved operator visibility, more accurate train scheduling, and reduced risk of unsafe braking curve configurations, all while expanding localization support.
2 Commits • 1 Features
Dec 1, 2025December 2025: OpenRailAssociation/osrd delivered key safety and UI enhancements for ETCS features. Key contributions include: ETCS speed-distance diagram UI enhancements with reticle info, translations, and improved display of braking types and speeds; strengthening braking curve safety with a monotonicity fix to envelope parts and accompanying tests; expanded test coverage across scenarios and edge cases; improved maintainability and traceability through clean commit messages and sign-offs. Business impact: improved operator visibility, more accurate train scheduling, and reduced risk of unsafe braking curve configurations, all while expanding localization support.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — OpenRailAssociation/osrd: Implemented ETCS Braking Curve Precision Enhancement by refining the epsilon parameter in envelope-point simplification, delivering finer braking-curve accuracy and faster, more reliable response times. No major bugs fixed this month; effort focused on delivering, validating, and preparing this change for integration. Business impact: improved safety margins and predictability in ETCS braking, enabling safer high-speed operation and better operator confidence. Technologies/skills demonstrated: numerical tuning, envelope-simplification techniques, version control discipline, and readiness for code review.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — OpenRailAssociation/osrd: Implemented ETCS Braking Curve Precision Enhancement by refining the epsilon parameter in envelope-point simplification, delivering finer braking-curve accuracy and faster, more reliable response times. No major bugs fixed this month; effort focused on delivering, validating, and preparing this change for integration. Business impact: improved safety margins and predictability in ETCS braking, enabling safer high-speed operation and better operator confidence. Technologies/skills demonstrated: numerical tuning, envelope-simplification techniques, version control discipline, and readiness for code review.
October 2025
7 Commits • 2 Features
Oct 1, 2025October 2025: Delivered critical ETCS braking curve capabilities and meaningful UI enhancements for paced-trains scenarios. Key features include: (1) ETCS Braking Curves API for Paced Trains — backend Rust implementation, OpenAPI spec updates, editoast integration, and tests for the new endpoint; (2) ETCS Curves Visualization UI Enhancements — SpeedSpaceChart improvements to display ETCS curves, plus UI polish for the SettingsPanel and related controls. These work items improved safety analysis capabilities, operator UX, and test coverage. Impact: enables retrieval of braking curves for paced trains, improves visualization for faster interpretation, and increases reliability through end-to-end tests. Technologies/skills demonstrated: Rust backend/API development, OpenAPI tooling, frontend TypeScript/JS UI work, UI/UX refinements, and automated testing. Business value: faster decision making, safer braking curve planning, and higher quality releases.
7 Commits • 2 Features
Oct 1, 2025October 2025: Delivered critical ETCS braking curve capabilities and meaningful UI enhancements for paced-trains scenarios. Key features include: (1) ETCS Braking Curves API for Paced Trains — backend Rust implementation, OpenAPI spec updates, editoast integration, and tests for the new endpoint; (2) ETCS Curves Visualization UI Enhancements — SpeedSpaceChart improvements to display ETCS curves, plus UI polish for the SettingsPanel and related controls. These work items improved safety analysis capabilities, operator UX, and test coverage. Impact: enables retrieval of braking curves for paced trains, improves visualization for faster interpretation, and increases reliability through end-to-end tests. Technologies/skills demonstrated: Rust backend/API development, OpenAPI tooling, frontend TypeScript/JS UI work, UI/UX refinements, and automated testing. Business value: faster decision making, safer braking curve planning, and higher quality releases.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 — OpenRailAssociation/osrd: Standard Conflict Management (stdcm) failure handling simplified to improve UX and maintainability. Implemented PathNotFound status and streamlined messaging; removed complex logic that surfaced conflicts along the shortest path, returning an empty failure or simple string. Backend and frontend changes coordinated across commits to ensure consistent user-facing behavior.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 — OpenRailAssociation/osrd: Standard Conflict Management (stdcm) failure handling simplified to improve UX and maintainability. Implemented PathNotFound status and streamlined messaging; removed complex logic that surfaced conflicts along the shortest path, returning an empty failure or simple string. Backend and frontend changes coordinated across commits to ensure consistent user-facing behavior.
August 2025
5 Commits • 3 Features
Aug 1, 2025During 2025-08, OpenRailAssociation/osrd delivered targeted API improvements, robust conflict-resolution enhancements, and test-suite modernization, delivering clear business value through increased reliability, streamlined requests, and simpler maintenance.
5 Commits • 3 Features
Aug 1, 2025During 2025-08, OpenRailAssociation/osrd delivered targeted API improvements, robust conflict-resolution enhancements, and test-suite modernization, delivering clear business value through increased reliability, streamlined requests, and simpler maintenance.
August 2025
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 Monthly Summary for OpenRailAssociation/osrd: Delivered key ETCS braking curves and simulation enhancements and introduced a new Timetable Requirements API endpoint. Strengthened data model integrity, context preservation during updates, and conflict classification; added block detectors; updated tests to reflect EoA/SvL changes; introduced paginated endpoint with routing changes. Result is higher fidelity simulations, more stable APIs, and improved accessibility to timetable requirements for planning and integration.
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 Monthly Summary for OpenRailAssociation/osrd: Delivered key ETCS braking curves and simulation enhancements and introduced a new Timetable Requirements API endpoint. Strengthened data model integrity, context preservation during updates, and conflict classification; added block detectors; updated tests to reflect EoA/SvL changes; introduced paginated endpoint with routing changes. Result is higher fidelity simulations, more stable APIs, and improved accessibility to timetable requirements for planning and integration.
June 2025
8 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenRailAssociation/osrd: Delivered ETCS braking curves capabilities, including API surface, data models, computation enhancements, and robust tests. Focused on delivering business value through accurate, compliant braking curves and seamless frontend/API integration, with strong emphasis on safety-critical data handling and OpenAPI documentation.
8 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenRailAssociation/osrd: Delivered ETCS braking curves capabilities, including API surface, data models, computation enhancements, and robust tests. Focused on delivering business value through accurate, compliant braking curves and seamless frontend/API integration, with strong emphasis on safety-critical data handling and OpenAPI documentation.
June 2025
May 2025
9 Commits • 2 Features
May 1, 2025May 2025 — OpenRailAssociation/osrd monthly summary focused on delivering value through safer, faster braking curve calculations and cleaner ETCS integration while maintaining high quality standards. Key features delivered: - Braking curve calculation enhancements and ETCS module refactor: moved stop/position calculations into the ETCS module; removed unused StopMeta and null checks; introduced internal pre-ps curve and use of minEtcsCurves for more accurate permitted speeds. Representative commits: 8bfeedb7, e835e945, d79e5d68, 6e18ca73, 6c5e45aa, 082d8236. - ETCS braking curves API endpoint and Kotlin-based simplification: created the ETCS braking curves endpoint and migrated the curve simplification logic from Java to Kotlin to reduce data points and improve efficiency. Representative commits: 8dfa3560, b3af9d19. Major bugs fixed: - Test alignment adjustments for braking curves and speed calculations: updated tests to reflect more precise permitted speeds and braking curves; fixed etcs integration tests (commit: f3e2a077). Overall impact and accomplishments: - Improved braking accuracy and computation performance, enabling safer and more reliable ETCS braking behavior. - Cleaner architecture with clearer module boundaries and removal of dead code, reducing maintenance burden and risk of regressions. - Enhanced testing reliability through alignment of test data with refined calculations. Technologies/skills demonstrated: - Kotlin migration and usage in ETCS tooling; Java-to-Kotlin refactoring. - Modular refactoring and clear separation of concerns between core calculations and ETCS module. - Testing strategy refinement and test-driven adjustments for safety-critical logic. - Code cleanup and dead-code removal for maintainability.
May 2025
9 Commits • 2 Features
May 1, 2025May 2025 — OpenRailAssociation/osrd monthly summary focused on delivering value through safer, faster braking curve calculations and cleaner ETCS integration while maintaining high quality standards. Key features delivered: - Braking curve calculation enhancements and ETCS module refactor: moved stop/position calculations into the ETCS module; removed unused StopMeta and null checks; introduced internal pre-ps curve and use of minEtcsCurves for more accurate permitted speeds. Representative commits: 8bfeedb7, e835e945, d79e5d68, 6e18ca73, 6c5e45aa, 082d8236. - ETCS braking curves API endpoint and Kotlin-based simplification: created the ETCS braking curves endpoint and migrated the curve simplification logic from Java to Kotlin to reduce data points and improve efficiency. Representative commits: 8dfa3560, b3af9d19. Major bugs fixed: - Test alignment adjustments for braking curves and speed calculations: updated tests to reflect more precise permitted speeds and braking curves; fixed etcs integration tests (commit: f3e2a077). Overall impact and accomplishments: - Improved braking accuracy and computation performance, enabling safer and more reliable ETCS braking behavior. - Cleaner architecture with clearer module boundaries and removal of dead code, reducing maintenance burden and risk of regressions. - Enhanced testing reliability through alignment of test data with refined calculations. Technologies/skills demonstrated: - Kotlin migration and usage in ETCS tooling; Java-to-Kotlin refactoring. - Modular refactoring and clear separation of concerns between core calculations and ETCS module. - Testing strategy refinement and test-driven adjustments for safety-critical logic. - Code cleanup and dead-code removal for maintainability.
April 2025
11 Commits • 3 Features
Apr 1, 2025April 2025: In OpenRailAssociation/osrd, delivered essential API modernization, pathfinding result refactor, and braking simulation enhancements. The work reduces technical debt, stabilizes the external API surface, and enhances operational tooling and simulation capabilities, setting the stage for faster feature delivery and reliable downstream integration.
11 Commits • 3 Features
Apr 1, 2025April 2025: In OpenRailAssociation/osrd, delivered essential API modernization, pathfinding result refactor, and braking simulation enhancements. The work reduces technical debt, stabilizes the external API surface, and enhances operational tooling and simulation capabilities, setting the stage for faster feature delivery and reliable downstream integration.
April 2025
March 2025
8 Commits • 4 Features
Mar 1, 2025OpenRailAssociation/osrd — March 2025 monthly summary. Delivered a set of Kotlin-based migrations and braking-curve improvements that enhance safety, maintainability, and test coverage while preserving existing behavior. Key architectural changes include immutable data models for envelope constructs, more accurate braking curve calculations, and improved GUI speed guidance aligned with signaling standards. Completed targeted bug fixes and code cleanup to reduce debt and stabilize production readiness.
March 2025
8 Commits • 4 Features
Mar 1, 2025OpenRailAssociation/osrd — March 2025 monthly summary. Delivered a set of Kotlin-based migrations and braking-curve improvements that enhance safety, maintainability, and test coverage while preserving existing behavior. Key architectural changes include immutable data models for envelope constructs, more accurate braking curve calculations, and improved GUI speed guidance aligned with signaling standards. Completed targeted bug fixes and code cleanup to reduce debt and stabilize production readiness.
January 2025
8 Commits • 1 Features
Jan 1, 2025January 2025 — OpenRailAssociation/osrd: Delivered core ETCS braking curves engine and envelope simulation overhaul with LOA/SVL integration, improved control flow, and assertion-based robustness. Strengthened the braking simulator and LOA handling for accurate speed maintenance and safe stopping points. Completed a dependency/API compatibility update (carrotsearch 0.10.0) to prevent runtime issues and preserve functionality, enhancing safety, correctness, and maintainability.
8 Commits • 1 Features
Jan 1, 2025January 2025 — OpenRailAssociation/osrd: Delivered core ETCS braking curves engine and envelope simulation overhaul with LOA/SVL integration, improved control flow, and assertion-based robustness. Strengthened the braking simulator and LOA handling for accurate speed maintenance and safe stopping points. Completed a dependency/API compatibility update (carrotsearch 0.10.0) to prevent runtime issues and preserve functionality, enhancing safety, correctness, and maintainability.
January 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for OpenRailAssociation/osrd: Delivered ETCS Braking Simulator enhancements to improve realism and reliability. Key outcomes include introducing braking constraints via LimitOfAuthority and EndOfAuthority and migrating to PhysicsPath for accurate braking calculations, along with an interface refactor to support future constraint-based improvements. No major bugs reported this month; work focused on feature delivery, code quality, and maintainability. The changes strengthen business value by enabling more realistic training, safer brake analysis, and easier regulatory validation.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for OpenRailAssociation/osrd: Delivered ETCS Braking Simulator enhancements to improve realism and reliability. Key outcomes include introducing braking constraints via LimitOfAuthority and EndOfAuthority and migrating to PhysicsPath for accurate braking calculations, along with an interface refactor to support future constraint-based improvements. No major bugs reported this month; work focused on feature delivery, code quality, and maintainability. The changes strengthen business value by enabling more realistic training, safer brake analysis, and easier regulatory validation.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for OpenRailAssociation/osrd: Focused on establishing an API foundation for braking scenario validation and planning through the ETCS Braking Simulator interface, with an initial stub designed to compute braking envelopes based on MRSP and target parameters. This groundwork enables safer braking strategies, future feature completions, and early integration with downstream modules.
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for OpenRailAssociation/osrd: Focused on establishing an API foundation for braking scenario validation and planning through the ETCS Braking Simulator interface, with an initial stub designed to compute braking envelopes based on MRSP and target parameters. This groundwork enables safer braking strategies, future feature completions, and early integration with downstream modules.
November 2024
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Quality Metrics
Correctness89.2%
Maintainability89.4%
Architecture86.8%
Performance79.8%
AI Usage20.6%
Skills & Technologies
Programming Languages
CSSGradleJSONJavaJavaScriptKotlinPythonRustSQLTOML
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI RefactoringAPI RemovalAPI TestingAPI developmentAlgorithm DesignAlgorithm DevelopmentAlgorithm ImplementationAlgorithm OptimizationBackend DevelopmentBackend TestingCode CleanupCode Migration
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