To integrate rationality into the decision-making process for addressing the risk to historic buildings like the House of St. Barnabas, project manager Andy Alder and his team can follow the steps of the rational decision-making model. First, they must identify the problem by thoroughly assessing the risk posed by tunneling efforts and gathering data on settling and potential damage to the rare Rococo plasterwork. Then, they can generate alternative solutions, such as reinforcing the foundation or limiting tunneling activities, and evaluate each option based on cost-effectiveness and potential impact. After careful consideration, they can select the most suitable solution and proceed with its implementation, monitoring the process closely to ensure adherence to the plan. Finally, they must evaluate the effectiveness of the implemented solution over time, making adjustments as necessary to preserve the long-term stability and historical significance of the House of St. Barnabas