bobsleigh
Enable an agent to recognise bobsleigh activity, assess readiness and performance, and determine appropriate participation, training or competition actions.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise bobsleigh activity, assess readiness and performance, and determine appropriate participation, training or competition actions.
Bobsleigh is a winter sliding sport in which one athlete or a crew races a steerable sled down a banked ice track, using a running push start and gravity-powered descent, with performance determined by elapsed time.
It can be Identify the bobsleigh format and retrieve the requirements applicable to that session or event.; Check whether participants, sled and track have sufficient documented readiness for a start decision.; Allocate push, pilot and braking responsibilities for the declared occupancy.; Compare starts, splits and descents while accounting for course, setup and conditions.; Record incidents and route unresolved readiness concerns to the responsible coach or official.; Explain how accepted run times produce a classification under the selected event rules..
Distinguishing features
The participants travel inside a sled body on runners, distinguishing the activity from riding a luge sled or lying on a skeleton sled.
The pilot steers the sled through the track using its steering mechanism, rather than relying solely on the body-steering methods associated with neighbouring sliding sports.
A sporting run connects a push-and-board start with a gravity-driven descent; the start procedure should be checked against the declared format.
Performance is assessed through timed passage over a defined course, with validity and any aggregation determined by the applicable event rules.
The entry denotes the activity, not an unoccupied bobsleigh sled being stored, transported or maintained.
Scope
+ Identification of bobsleigh disciplines, participation formats and applicable rules
+ Push starts, boarding, piloting, descent and stopping as connected phases
+ Participant roles, crew coordination and readiness for a particular track
+ Relationships between sled setup, ice conditions and descent performance
+ Run validity, timing, classification and decisions to start, continue or withdraw
- Detailed engineering, manufacture and ownership of bobsleigh sleds
- Track construction and refrigeration infrastructure
- Luge and skeleton as separate sliding sports
- General athlete healthcare and rehabilitation
- Governance and administration of sporting organisations
Characteristics
- Participation format
- Declared individual or crew format, including the event's discipline label Determines occupancy, role allocation and which competition requirements must be consulted.
- Activity context
- Training, competition, familiarisation or recreational descent Changes the purpose of the run and the evidence needed to authorise participation.
- Participant role allocation
- Participants linked to pilot, push, braking and other format-specific responsibilities Makes responsibility explicit without assuming every function belongs to a different person.
- Track and start configuration
- Named track, selected start position, finish reference and stopping area Defines the course actually attempted and limits valid timing comparisons.
- Elapsed and split times
- Seconds, with timing-point definitions and recorded precision Separates start performance from losses or gains during the descent.
- Sled and participant mass
- Kilograms, stating included components and measurement procedure Supports assessment against the selected format's requirements and interpretation of setup.
- Run conditions
- Time-stamped ice, weather and track-condition observations Conditions can affect handling and make raw times misleading across runs.
- Start readiness
- Unassessed, ready, conditional or held, with responsible decision-maker and reasons Connects participant, equipment and track evidence to an explicit start decision.
- Run disposition
- Scheduled, started, finished, interrupted, withdrawn or officially invalidated Distinguishes physical completion from a result accepted for classification.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 18 findings · 28 questions.
Sport identity and format Establishes the activity sense of bobsleigh and the specific form being practised.
The name can denote equipment or sport, and different participation formats change how a run is organised.
Activity boundary
Distinguishes bobsleigh participation from neighbouring sliding activities and equipment handling.
Sled-borne sporting descent
Recognition should consider participant position, sled type, steering method and the purpose of the descent together.
- What observable features establish that this activity is bobsleigh rather than luge, skeleton or sled transport? boundary
- Does the instance concern competitive sport, training or a recreational bobsleigh experience? definition
Format and rule context
Connects occupancy and session type to an identified set of requirements.
Declared format
Occupancy alone does not establish all eligibility, equipment or result requirements; the governing context must be recorded.
- Which individual or crew format is declared, and which responsibilities does it require? definition
- Which organisation, document version and event instructions govern this bobsleigh session? provenance
Push start and crew coordination Models acceleration on foot, boarding and the transition to an occupied sled.
Bobsleigh performance depends on a coordinated transition from human propulsion to the descent configuration.
Push responsibilities
Records who contributes to initial acceleration and how the start is coordinated.
Coordinated acceleration
Start assessment should relate role allocation and synchronisation to the measured start segment.
- Who pushes from each position, and what cue coordinates the start? action
- Between which timing points is start performance measured, and what time was recorded? measurement
Boarding transition
Captures entry into the moving sled and establishment of the descent positions.
Boarding sequence and control
The model should distinguish a completed boarding sequence from a disrupted start requiring assessment.
- What boarding sequence and seated positions are intended for this format and crew? action
- Was boarding completed as intended, and what observed disruption affected control or start time? measurement
Sled, track and piloting Relates the prepared sled and ice track to the pilot's execution of the descent.
A run cannot be interpreted from time alone because setup, track geometry and steering interact.
Run configuration
Identifies the sled setup and course conditions relevant to this particular attempt.
Setup and condition context
Record equipment and track observations at run level so subsequent comparisons have a defensible context.
- Which sled, runner setup and measured total mass were used for this run? measurement
- Which start position and track-condition observations apply, and when were they recorded? provenance
Descent execution
Connects intended lines through track sections with observed steering and sled behaviour.
Line and speed retention
Piloting assessment should associate observations with named track sections and distinguish measured effects from coaching interpretations.
- Where did the observed line, wall contact or sled stability differ from the intended descent? measurement
- What evidence supports attributing a split-time change to piloting rather than the start, setup or ice conditions? provenance
Readiness and run control Supports start authorisation, completion and response to disrupted descents.
A fast descent is actionable only within a controlled session with appropriate participants, equipment and track availability.
Start authorisation
Combines readiness evidence with the authority responsible for releasing the sled.
Track-specific readiness
Readiness belongs to the particular participants, sled, start position and session rather than to the sport in general.
- What evidence establishes participant preparation and equipment acceptance for this track and start position? provenance
- Who may release or hold the start, and which unresolved conditions require a hold? action
Finish and disruption
Distinguishes crossing the timing finish from stopping and clearing the course.
Controlled run closure
A session record should capture the sled's stopping and clearance status as well as crashes or other interruptions.
- Who is responsible for braking, and has the sled stopped and cleared the designated area? action
- If the descent was disrupted, which session procedure and responsible personnel determine the next action? action
Timing, validity and learning Separates recorded performance, official acceptance and evidence for improvement.
Bobsleigh uses timed runs, but elapsed time, valid classification and useful training comparisons are distinct judgements.
Official result
Links measured times to run validity and the event's classification procedure.
Accepted time and classification
A finish time becomes a competition result through the applicable validity and aggregation rules.
- What elapsed time was recorded, by which timing system and at what precision? measurement
- Which ruling accepts or invalidates the run, and how do accepted runs contribute to classification? provenance
Performance interpretation
Uses comparable runs to identify specific opportunities for training or setup review.
Comparable run evidence
Performance conclusions should preserve differences in crew, start position, sled setup and conditions instead of treating every time as equivalent.
- Which runs are sufficiently comparable to assess a change in start, boarding or piloting performance? boundary
- What specific training or setup review is supported by those comparisons, and what remains uncertain? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The activity sense is inferred from ACT.ACT; the word also names the sled.
- Competition categories, eligibility, equipment specifications and weight limits should be checked against the applicable edition of IBSF rules.
- Time and speed ranges are approximate illustrations, not regulatory limits; this description is based on recall rather than consulted sources.
- Which of these check these first hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Monobob
- Two-person bobsleigh
- Four-person bobsleigh
- Which of these kinds and varieties hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- International Bobsleigh and Skeleton Federation (IBSF) International Bobsleigh Rules govern competition procedures, equipment, crew composition and weight limits.
- IBSF track homologation requirements govern tracks approved for its competitions.
- Which of these standards and regulation hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Olympic Winter Games competition
- World Championships and World Cup racing
- National and development competitions
- Athlete training in push starts, coordinated loading and track driving
- Which of these real-world use hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Run time - Track-dependent; commonly approximately 50-70 seconds - s
- Speed during descent - Fast sections commonly approximately 100-150; varies with track and sled class - km/h
- Which of these typical measurements hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Overturning after an unstable line through a curve
- Collisions with track walls, causing injury and loss of speed
- Slips or mistimed loading during the push start
- Steering or runner problems that impair control
- High-speed crashes causing impact and abrasion injuries
- Which of these failure modes and hazards hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- The sport is commonly called bobsled in American English and bobsleigh in British English and international governing-body usage.
- Access to refrigerated tracks strongly shapes where athletes train; countries without suitable tracks often train abroad.
- Which of these regional variation hold for the sense of bobsleigh this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Bobsleigh sled - The physical vehicle used in the activity; this description covers the sport, consistent with domain ACT.ACT.
- Skeleton - An athlete descends head-first and prone on a small sled, rather than riding seated in a bobsleigh with a mechanical steering system.
- Luge - Athletes descend feet-first and supine on an open sled, rather than using a running push-and-load start into a bobsleigh.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of bobsleigh this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend bobsleigh to include recreational passenger descents, or should those be linked to a neighbouring activity model?
- Which authoritative sources and rule editions should establish format-specific eligibility, equipment limits, start procedures and classification?
- How should para-bobsleigh and adapted participation be represented within this entry without creating unsupported registry splits?
- Which track-specific readiness criteria and incident procedures can be sourced, and who has authority to apply them?
- What evidence is sufficient to separate pilot or crew improvement from changes in ice conditions, sled setup and timing configuration?