Reizigerkm

Reizigerkm is a unit of measurement used in transport statistics to quantify the distance traveled by travelers. It denotes the travel distance accumulated by each individual, with one reizigerkm equal to one traveler moving one kilometer, regardless of the mode of transport. Totals are obtained by summing the distance traveled by all travelers across trips, effectively aggregating person-based travel activity.

Example: a trip of 5 kilometers undertaken by two travelers contributes 10 reizigerkm to the total. If a person makes several legs of a journey, the distances are added to the traveler’s reizigerkm, and then summed across all travelers to yield the total for a given period or region.

Reizigerkm is conceptually aligned with the standard metric known as passenger-kilometers (pkm) and is most commonly encountered in Dutch-language transport planning literature and related datasets. The term is used to describe travel demand, modal shares, and energy or emissions calculations from a traveler-centered perspective.

Applications include benchmarking transport efficiency, forecasting infrastructure needs, and evaluating policy impacts on travel behavior. Data sources typically comprise travel surveys, ticketing and fare data, smartcard or mobile location data, and GPS traces. When aggregating across modes and trips, privacy-preserving methods are employed to protect individual identities.

Limitations of reizigerkm include potential loss of detailed trip structure when aggregating to totals and possible inconsistencies in data collection across modes or regions. Nonetheless, it serves as a straightforward, traveler-focused metric for comparing travel activity and planning interventions in multi-modal transport systems. Related concepts include passenger-kilometers (pkm) and vehicle-kilometers (vkm).