Shaft width
shaft_width_mm
Required shaft width
Scores if within ±3% of the reference value.
Calculates a reduced lift shaft envelope from car dimensions, clearances, counterweight allowance, rated speed, and car count. The template reports shaft width, shaft depth, pit depth, and headroom using explicit clearance formulas for vertical transportation planning.
with-tool: The model is given an executable Python calculator script.
Standards
One template produces many comparable benchmark tasks while keeping the scoring contract fixed.
01
The reusable contract shown on this page.
02
An archetype and site context are sampled.
03
Inputs may be hidden at harder tiers.
04
The model responds with the declared outputs.
Inputs the model receives, and the outputs it is scored on.
9 inputs
Included directly in every task prompt.
Car internal width
car_internal_width_mm
Lift car internal width
Car internal depth
car_internal_depth_mm
Lift car internal depth
Side clearance
side_clearance_mm
Clearance on each side of the car
Front clearance
front_clearance_mm
Front shaft clearance allowance
Counterweight width
counterweight_width_mm
Counterweight width allowance
Rated speed
rated_speed_m_s
Lift rated speed
Car
car_count
Number of cars in the shaft group
Inter car clearance
inter_car_clearance_mm
Clearance between adjacent cars
Visible in easier tasks and withheld in one or more harder tiers.
Rear clearance
rear_clearance_mm
Rear shaft clearance allowance
Hidden at hard difficulty.
4 outputs
shaft_width_mm
Required shaft width
Scores if within ±3% of the reference value.
shaft_depth_mm
Required shaft depth
Scores if within ±3% of the reference value.
pit_depth_mm
Reduced pit depth allowance
Scores if within ±3% of the reference value.
headroom_mm
Reduced headroom allowance
Scores if within ±3% of the reference value.
Each template is sampled at three tiers. Harder tiers may hide inputs, forcing the model to infer them from the scenario description.
All inputs given
Passenger lift with all values visible
All inputs given
Lift shaft selected from passenger or goods cases
Some inputs hidden
Goods lift with rear clearance embedded in context
Hidden inputs
Prompt replacement text
Use the rear clearance allowance implied by {{ archetype.description }}.
Rear clearance restricted to: 300
The exact instruction and parameter contract used to generate this task, pinned to the published library source.
/workspace
Teal lines show Jinja input conditions, not task visibility policy. A line renders only when that input or tool is visible.
1# ABOUTME: Prompt template for reduced lift shaft dimension tasks.2# ABOUTME: Presents car dimensions, clearances, counterweight allowance, speed, and count.3 4You are a senior vertical transportation engineer sizing a reduced lift shaft envelope.5 6## Given7 8| Parameter | Value | Unit |9|-----------|-------|------|10| Car internal width | {{ car_internal_width_mm }} | mm |11| Car internal depth | {{ car_internal_depth_mm }} | mm |12| Side clearance | {{ side_clearance_mm }} | mm |13| Front clearance | {{ front_clearance_mm }} | mm |14| Rear clearance | {{ rear_clearance_mm }} | mm |15| Counterweight width allowance | {{ counterweight_width_mm }} | mm |16| Rated speed | {{ rated_speed_m_s }} | m/s |17| Number of cars in shaft group | {{ car_count }} | count |18| Inter-car clearance | {{ inter_car_clearance_mm }} | mm |19 20## Constraints21 22- Shaft width equals car count times `(car width + 2 * side clearance + counterweight width)` plus inter-car clearances between cars.23- Shaft depth equals car depth plus front and rear clearances.24- Reduced pit depth equals `1200 + rated speed * 250`.25- Reduced headroom equals `3600 + rated speed * 500`.26 27## Output Format28 29Include a JSON block with exactly these keys:30 31```json32{33 "shaft_width_mm": <numeric_value>,34 "shaft_depth_mm": <numeric_value>,35 "pit_depth_mm": <numeric_value>,36 "headroom_mm": <numeric_value>37}38```39 40Write your complete solution to `/workspace/output.md`.41 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.
passenger_lift
Passenger lift shaft
goods_lift
Goods lift shaft
goods-lift-goods-lift-preview — hard difficulty, some inputs hidden.
Goods lift shaft. goods-lift. Required outputs: shaft_width_mm, shaft_depth_mm, pit_depth_mm, headroom_mm
Scenario context and visible inputs.
Executable tool: shaft-dimensions_calc.py
Inputs withheld at this difficulty.
Rear clearance
rear_clearance_mm
Stand-in text in the prompt
Use the rear clearance allowance implied by {{ archetype.description }}.
The scored JSON answer schema.
{
"shaft_width_mm": <number>,
"shaft_depth_mm": <number>,
"pit_depth_mm": <number>,
"headroom_mm": <number>
}