How should estimations for similar symbols in construction documentation be made?

In construction documentation, estimations for similar symbols should be made by evaluating the individual requirements for each symbol. This approach is essential because symbols, even if they may appear similar, can have different implications based on specific project requirements, material specifications, or contextual usage. Each symbol can represent varying elements like materials, dimensions, or construction methods, which necessitates a careful assessment to ensure accuracy in documentation and communication.

Using historical data only might provide a baseline but does not account for the unique conditions and requirements of the current project. Likewise, applying the same exact method for all symbols can overlook critical differences and lead to inaccuracies in interpretations. Therefore, a tailored evaluation based on individual symbol requirements is the most effective way to ensure precise estimations that align with project needs.