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Challenge

Build a Freight Emissions Modeler and Shipper Benchmark Tool

Calculate Scope 3 freight greenhouse gas emissions for Singapore port drayage and feeder voyages. Benchmark carrier operational sustainability to generate shipper comparative reports.

Business OperationsHosted by Vera
Challenge brief

What you are building

The core problem, expected build, and operating context for this challenge.

Calculate Scope 3 freight greenhouse gas emissions for Singapore port drayage and feeder voyages. Benchmark carrier operational sustainability to generate shipper comparative reports.

Supply Chain Sustainability Manager

Retrieve real-time weather and rainfall observations from Singapore data.gov.sg.

Combine cargo tonnage and corridor distance to calculate baseline emissions.

Apply weather friction penalties to haulage fuel consumption models.

Compile comparative shipper emissions reports and highlight low-carbon routing options.

Interactive reporting workspace displaying modality carbon intensity graphs and shipper performance matrices.

Fetch live rainfall measurements from data.gov.sg real-time weather APIs; mock feeder vessel bunker logs. Starter examples below are synthetic. They are not downloaded records.

Singapore open data API Consumes Singapore data.gov.sg real-time weather APIs to model heavy rain impedance on urban freight fuel consumption.

langgraph, pydantic, httpx. LangGraph orchestrates multi-step simulation cycles linking weather telemetry, drayage models, and comparative report drafting. API-hosted model for drafting multimodal green freight optimization recommendations.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Calculate voyage and drayage CO2e emissions using standardized activity-based emission factor models.

Incorporate Singapore real-time rainfall data to adjust fuel consumption curves for road haulage.

Produce comparative shipper emissions scorecards across multiple transport modalities.

Generate downloadable sustainability reporting packages compliant with corporate Scope 3 frameworks.

```json [ { "input": { "cargo_weight_teu": 4, "drayage_km": 32, "rainfall_mm": 18.5, "transport_mode": "heavy_truck_diesel" }, "expected_output": { "adjusted_co2e_kg": 118.45, "baseline_co2e_kg": 105.6, "carrier_grade": "B", "weather_penalty_percent": 12.17 } }, { "input": { "cargo_weight_teu": 0, "drayage_km": 32, "rainfall_mm": 0, "transport_mode": "heavy_truck_diesel" }, "expected_output": { "error": "INVALID_CARGO_WEIGHT", "status": "CALCULATION_ABORTED" } } ] ```

Calculations serve as internal analytical comparisons; no binding carbon offsets or tax filings are executed. Use mock external writes. Require human review before any real deployment.

Rules

Participation guide

Calculations serve as internal analytical comparisons; no binding carbon offsets or tax filings are executed. Use mock external writes and human review.

Delivery guide

How work is evaluated

Evaluation

Calculate voyage and drayage CO2e emissions using standardized activity-based emission factor models. Incorporate Singapore real-time rainfall data to adjust fuel consumption curves for road haulage. Produce comparative shipper emissions scorecards across multiple transport modalities. Generate downloadable sustainability reporting packages compliant with corporate Scope 3 frameworks.

Submission format

Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.

Datasets

Challenge datasets

Public datasets, plus the private datasets you have access to.

Evaluation rubric

How submissions are scored

These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.

Dimensions
4 scoring checks
Binary
1 pass or fail dimensions
Ordinal
3 scaled dimensions
Dimension 1

Complete workflow

Retrieve real-time weather and rainfall observations from Singapore data.gov.sg. Combine cargo tonnage and corridor distance to calculate baseline emissions. Apply weather friction penalties to haulage fuel consumption models. Compile comparative shipper emissions reports and highlight low-carbon routing options.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 2

Correctness and evidence

Calculate voyage and drayage CO2e emissions using standardized activity-based emission factor models. Incorporate Singapore real-time rainfall data to adjust fuel consumption curves for road haulage. Produce comparative shipper emissions scorecards across multiple transport modalities. Generate downloadable sustainability reporting packages compliant with corporate Scope 3 frameworks.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 3

Review interface

Interactive reporting workspace displaying modality carbon intensity graphs and shipper performance matrices.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 4

Safe execution

Calculations serve as internal analytical comparisons; no binding carbon offsets or tax filings are executed.

Binary check

This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.

Learning goals

What you should walk away with

  • Retrieve real-time weather and rainfall observations from Singapore data.gov.sg.

  • Combine cargo tonnage and corridor distance to calculate baseline emissions.

  • Apply weather friction penalties to haulage fuel consumption models.

  • Compile comparative shipper emissions reports and highlight low-carbon routing options.

Resources and assets

Reference links and supporting material

Dataset notes

Fetch live rainfall measurements from data.gov.sg real-time weather APIs; mock feeder vessel bunker logs. Supplied starter examples are synthetic, not source extracts.

Challenge setup

Configuration summary for this challenge.

Challenge input

Input details are not configured.

LangGraph

Runtime for stateful agent workflows.

Evaluated output

No output checks are configured.

Evaluation checks
  • Retrieve real-time weather and rainfall observations from Singapore data.gov.sg. Combine cargo tonnage and...
  • Calculate voyage and drayage CO2e emissions using standardized activity-based emission factor models. Incor...
  • Interactive reporting workspace displaying modality carbon intensity graphs and shipper performance matrices.
Configured evaluation evidence
  • 2 public reference cases
Configured runtime
  • 2 configured tools

Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.

View technical recipe

Configured tools

Action Space
  • LangGraph · Optional
Orchestration
  • LangGraph · Optional

Evaluation contract

  • Complete workflow · Weight 40
  • Correctness and evidence · Weight 30
  • Review interface · Weight 20
  • Safe execution · Weight 10

Reference cases

  • 2 public reference cases

Workflow tasks

No workflow tasks are configured.

Recipe freeze marker

No recipe freeze time is recorded.

Frequently Asked Questions about Build a Freight Emissions Modeler and Shipper Benchmark Tool