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This knowledge graph visualizes risk and value decision making processes within the HS2 supply chain, based on the COVER ontology. The graph shows relationships between various entities like agents, events, outcomes, and assessments.
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The scenario demonstrates a decision-making process regarding a potential delay in concrete supply for a critical HS2 viaduct construction, showcasing how risk assessment and value evaluation interact in major infrastructure projects.
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The HS2 project team has identified a potential risk regarding the concrete supply for the Chiltern Viaduct, a critical construction component. Recent quality control tests showed inconsistencies in the supplied concrete mix, which could affect structural integrity if not addressed.
Responsible for ensuring timely and quality construction of the viaduct section.
Performs tests and evaluates the quality of materials used in construction.
A critical infrastructure component that requires high-quality concrete for structural integrity.
The supplier responsible for delivering the concrete mixture that showed quality inconsistencies.
The HS2 Construction Manager initiates a risk assessment process to evaluate the potential impact of the concrete quality issues:
The inconsistent concrete mix strength represents a vulnerability in the construction process.
The supplier's production control system has limitations that affect consistency.
Evaluation of how the concrete quality issues might affect the viaduct's structural integrity.
The long-term structural performance of the viaduct is a key value consideration.
An alternative concrete supplier could provide higher quality material but at a higher cost and with potential delays.
The potential event where the concrete fails to meet required specifications during construction.
A delay in construction timeline if the concrete needs to be replaced or remediated.
The resulting situation where the project timeline is extended, affecting other dependent components.
After analyzing the risks and value considerations, the HS2 Construction Manager must decide between:
The decision prioritizes the long-term structural reliability of the viaduct over short-term schedule considerations.
The decision to replace the current concrete supplier with the alternative that can consistently meet quality requirements.
The Construction Manager decides to switch to the alternative supplier, accepting a 2-week delay in exchange for guaranteed concrete quality that meets specifications. This decision: