An elevator procurement approach that defines required outcomes and measurable performance criteria rather than prescribing specific technical solutions.
Full Definition
A performance-based specification (PBS) for an elevator contract defines what the installation must achieve — traffic handling capacity, average waiting times, round trip times, energy consumption, availability targets, noise levels — rather than dictating specific shaft dimensions, motor types, or controller brands. This approach allows manufacturers to propose innovative solutions and optimise their designs to meet the stated performance outcomes. PBS is increasingly used in large commercial and transport hub projects where the building designer wants to ensure passenger throughput without constraining technology choices. Performance criteria are measured against agreed simulation models (such as CIBSE Guide D traffic calculations) or post-installation monitoring data. The approach also simplifies international procurement by avoiding country-specific prescriptive requirements.
