Publications / CSCE/CRC 2025 - Montreal, Canada
Task complexity governs human cognition, influencing decision-making, problem-solving, and performance. Behavioral science has long explored complexity from a cognitive load perspective, yet construction research often treats it as an operational obstacle rather than a structured phenomenon. In many cases, complexity is used as a generic term in construction research, lacking clear differentiation between cognitive, procedural, and systemic challenges. This broad usage oversimplifies the ways in which complexity affects human performance, limiting the potential for targeted interventions. Cognitive capacity is a finite yet critical resource that shapes how individuals process information, adapt to challenges, and execute tasks effectively. However, why do we not design tasks with a structured understanding of task complexity, considering its different dimensions and the cognitive load it imposes on workers? This paper examines task complexity from a behavioral science perspective, questions how it has been translated into construction research, and argues for a reframing of complexity not as a burden but as an essential component of a human-centered task design. Finally, it challenges the field with provocative questions to reconsider how we design, measure, and engage with task complexity in construction. It highlights the need to develop a systematic assessment framework, leveraging cognitive science to create more adaptive and efficient construction workflows that align with human cognitive capabilities.