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civilwith-tool

Rail Drainage Flood Clearance Speed Restriction Package

Calculates deterministic SSC-02 rail drainage and flood-clearance metrics from a task-owned synthetic source pack. The template combines rational-method peak flow, culvert capacity margin, track freeboard, wayside equipment clearance, speed reduction, and an overall synthetic pass score.

with-tool: The model is given an executable Python calculator script.

Standards

operator flood speed-restriction workflowrail drainage design review workflow

Tags

civildeterministicdrainagefloodfreeboardrailspeed-restrictionwayside

How this task is generated

One template produces many comparable benchmark tasks while keeping the scoring contract fixed.

  1. 01

    Template

    The reusable contract shown on this page.

  2. 02

    Scenario

    An archetype and site context are sampled.

  3. 03

    Difficulty tier

    Inputs may be hidden at harder tiers.

  4. 04

    Task prompt

    The model responds with the declared outputs.

Parameters

Inputs the model receives, and the outputs it is scored on.

Inputs

11 inputs

Always given

Included directly in every task prompt.

11
Show 11 inputs

  • Catchment area

    catchment_area_ha

    TRACK-02-DRAIN-04 contributing catchment area

    12 ha

  • Rainfall intensity

    rainfall_intensity_mm_h

    FLOOD-02-LEVEL-04 design rainfall intensity

    72 mm/h

  • Runoff coefficient

    runoff_coefficient

    TRACK-02-DRAIN-04 runoff coefficient

    0.72

  • Culvert capacity m3 s

    culvert_capacity_m3_s

    CULVERT-02-SCHED-04 culvert capacity

    2.4 m^3/s

  • Track low rail level

    track_low_rail_level_m

    TRACK-02-DRAIN-04 low-rail level

    102.25 m

  • Flood level

    flood_level_m

    FLOOD-02-LEVEL-04 flood level

    101.58 m

  • Required freeboard

    required_freeboard_m

    OPS-02-FLOOD-04 required track freeboard

    0.45 m

  • Equipment plinth level

    equipment_plinth_level_m

    WAYSIDE-02-LAYOUT-04 wayside equipment plinth level

    101.95 m

  • Minimum equipment clearance

    minimum_equipment_clearance_m

    OPS-02-FLOOD-04 minimum equipment clearance above flood level

    0.1 m

  • Normal speed kmh

    normal_speed_kmh

    OPS-02-FLOOD-04 normal line speed

    95 km/h

  • Restricted speed kmh

    restricted_speed_kmh

    OPS-02-FLOOD-04 flood-restriction speed

    45 km/h

Scored outputs

9 outputs

Peak flow

peak_flow_m3_s

Rational-method peak flow

Scores if within ±3% of the reference value.

Culvert capacity margin

culvert_capacity_margin_m3_s

Culvert capacity minus peak flow

Scores if within ±3% of the reference value.

Track freeboard

track_freeboard_m

Low-rail level minus flood level

Scores if within ±0.3% of the reference value.

Freeboard margin

freeboard_margin_m

Track freeboard minus required freeboard

Scores if within ±0.3% of the reference value.

Equipment freeboard

equipment_freeboard_m

Equipment plinth level minus flood level

Scores if within ±0.3% of the reference value.

Equipment exposure margin

equipment_exposure_margin_m

Equipment freeboard minus minimum equipment clearance

Scores if within ±0.3% of the reference value.

Speed reduction kmh

speed_reduction_kmh

Normal speed minus restricted speed

Scores if within ±3% of the reference value.

Restriction pass score

restriction_pass_score

1.0 when culvert, freeboard, and exposure margins are non-negative

Scores if within ±0.1% of the reference value.

Overall pass score

overall_pass_score

Overall synthetic pass score for the drainage and restriction check

Scores if within ±0.1% of the reference value.

Difficulty

Each template is sampled at three tiers. Harder tiers may hide inputs, forcing the model to infer them from the scenario description.

All inputs remain visible at every tier

For this template, difficulty scales through parameter and scenario ranges rather than hidden information.

easy:
All source-pack values given for the SSC-02 rail drainage and flood-clearance package
medium:
All source-pack values given for the SSC-02 rail drainage and flood-clearance package
hard:
All source-pack values given for the SSC-02 rail drainage and flood-clearance package

Task bundle

The exact instruction and parameter contract used to generate this task, pinned to the published library source.

/workspace

  • instruction.md
  • rail-drainage-flood-clearance-speed-restriction-package_calc.py

Teal lines show Jinja input conditions, not task visibility policy. A line renders only when that input or tool is visible.

1You are a rail civil designer checking `SSC-02-LH-04`, a task-owned synthetic SSC-02 rail drainage, flood-clearance, and speed-restriction package.2 3Use only the task-owned synthetic source pack values below for numeric grading. Rail drainage and operating restriction workflows shape the context only; this instance does not run a hydraulic model, parse a real drainage long section, or validate an operator restriction.4 5## Scene6 7- Design case: `CASE-SSC02-FLOOD-04`8- Track and drainage long section: `TRACK-02-DRAIN-04`9- Culvert schedule: `CULVERT-02-SCHED-04`10- Flood level table: `FLOOD-02-LEVEL-04`11- Wayside equipment layout: `WAYSIDE-02-LAYOUT-04`12- Flood operating rule: `OPS-02-FLOOD-04`13- Flood resilience memo: `MEMO-02-FLOOD-04`14 15## Source Values16 17| Item | Value |18|------|-------|19| Catchment area | {{ catchment_area_ha }} ha |20| Rainfall intensity | {{ rainfall_intensity_mm_h }} mm/h |21| Runoff coefficient | {{ runoff_coefficient }} |22| Culvert capacity | {{ culvert_capacity_m3_s }} m^3/s |23| Track low-rail level | {{ track_low_rail_level_m }} m |24| Flood level | {{ flood_level_m }} m |25| Required freeboard | {{ required_freeboard_m }} m |26| Equipment plinth level | {{ equipment_plinth_level_m }} m |27| Minimum equipment clearance | {{ minimum_equipment_clearance_m }} m |28| Normal speed | {{ normal_speed_kmh }} km/h |29| Restricted speed | {{ restricted_speed_kmh }} km/h |30 31Checks:32 33- Peak flow equals `0.00278 x runoff_coefficient x rainfall_intensity x catchment_area`.34- Culvert capacity margin equals culvert capacity minus peak flow.35- Track freeboard equals low-rail level minus flood level.36- Equipment freeboard equals equipment plinth level minus flood level.37- Speed reduction equals normal speed minus restricted speed.38- Overall pass score is `1.0` only when culvert, track-freeboard, and equipment-exposure margins are non-negative; otherwise it is `0.0`.39 40## Output Format41 42Write a compact memo to `/workspace/output.md`. Preserve the object IDs above, state the task-owned synthetic source-pack boundary, and explain whether the baseline source pack passes the docs-only checks.43 44Do not claim authority approval, accepted project evidence, hydraulic model validity, full standards compliance, executable real source-pack parsing, generated benchmark readiness, or benchmark readiness.45 46Include a fenced JSON block with exactly these numeric keys:47 48```json49{50 "peak_flow_m3_s": <numeric_value>,51 "culvert_capacity_margin_m3_s": <numeric_value>,52 "track_freeboard_m": <numeric_value>,53 "freeboard_margin_m": <numeric_value>,54 "equipment_freeboard_m": <numeric_value>,55 "equipment_exposure_margin_m": <numeric_value>,56 "speed_reduction_kmh": <numeric_value>,57 "restriction_pass_score": <numeric_value>,58 "overall_pass_score": <numeric_value>59}60```61

Scenario archetypes

Each generated task is drawn from one of these realistic scenario bands.

Site contexts ground each scenario in a real locale the model can use to infer hidden values.

Ssc02 rail drainage flood case

ssc02_rail_drainage_flood_case

Rail drainage package tied to one track profile, culvert schedule, flood level table, wayside equipment layout, operating restriction, and memo

rail-drainage-flood-restriction
Parameter ranges
catchment_area_ha
12
rainfall_intensity_mm_h
72
runoff_coefficient
0.72
culvert_capacity_m3_s
2.4
track_low_rail_level_m
102.25
flood_level_m
101.58
required_freeboard_m
0.45
equipment_plinth_level_m
101.95
minimum_equipment_clearance_m
0.1
normal_speed_kmh
95
restricted_speed_kmh
45

Example task

rail-drainage-flood-restriction-ssc02-rail-drainage-flood-case-preview — hard difficulty, all inputs given.

Rail drainage package tied to one track profile, culvert schedule, flood level table, wayside equipment layout, operating restriction, and memo. rail-drainage-flood-restriction. Required outputs: peak_flow_m3_s, culvert_capacity_margin_m3_s, track_freeboard_m, freeboard_margin_m, equipment_freeboard_m, equipment_exposure_margin_m

The model sees

Scenario context and visible inputs.

catchment_area_ha
12 to 12 ha
rainfall_intensity_mm_h
72 to 72 mm/h
runoff_coefficient
0.72 to 0.72
culvert_capacity_m3_s
2.4 to 2.4 m^3/s
track_low_rail_level_m
102.25 to 102.25 m
flood_level_m
101.58 to 101.58 m
required_freeboard_m
0.45 to 0.45 m
equipment_plinth_level_m
101.95 to 101.95 m
minimum_equipment_clearance_m
0.1 to 0.1 m
normal_speed_kmh
95 to 95 km/h
restricted_speed_kmh
45 to 45 km/h

Executable tool: rail-drainage-flood-clearance-speed-restriction-package_calc.py

The model must infer

Inputs withheld at this difficulty.

Nothing. All inputs are supplied.

The model must produce

The scored JSON answer schema.

{
  "peak_flow_m3_s": <number>,
  "culvert_capacity_margin_m3_s": <number>,
  "track_freeboard_m": <number>,
  "freeboard_margin_m": <number>,
  "equipment_freeboard_m": <number>,
  "equipment_exposure_margin_m": <number>,
  "speed_reduction_kmh": <number>,
  "restriction_pass_score": <number>,
  "overall_pass_score": <number>
}
  • peak_flow_m3_s · scored within ±3%
  • culvert_capacity_margin_m3_s · scored within ±3%
  • track_freeboard_m · scored within ±0.3%
  • freeboard_margin_m · scored within ±0.3%
  • equipment_freeboard_m · scored within ±0.3%
  • equipment_exposure_margin_m · scored within ±0.3%
  • speed_reduction_kmh · scored within ±3%
  • restriction_pass_score · scored within ±0.1%
  • overall_pass_score · scored within ±0.1%