logity

Logity is a theoretical measure used in logistics and systems theory to quantify the efficiency, resilience, and adaptability of a distribution network. It treats a network as a set of nodes and links and aggregates several performance indicators into a single index. The term appears in academic discussions across urban planning, supply chain management, and disaster-relief logistics. The exact definition of logity varies among authors, but common elements include connectivity, delivery speed, reliability, redundancy, and the system’s ability to recover from disruptions. It is typically presented as a normalized score on a 0 to 1 or 0 to 100 scale.

Calculation methods combine structural measures such as network density and betweenness with dynamic measures like mean transit time, service level variability, time to recover after a shock, and throughput per unit of energy or carbon emitted. Some frameworks weight resilience more heavily, others prioritize efficiency or equity of access.

Applications include benchmarking city or regional supply chains, guiding investment in multimodal hubs, and evaluating digital twin simulations of logistics networks. Limitations include sensitivity to data quality, geographic scope, and chosen weights, which can affect comparability across contexts. Logity is often used alongside other indicators, such as cost, carbon footprint, and service accuracy, to provide a holistic view of logistical performance.

See also: supply chain resilience, urban logistics, performance benchmarking.