Measurement and evaluation
Parking accumulation
Accumulation du stationnement
Parking accumulation is the number of vehicles present in a defined parking area at a given time, often plotted across an observation period. It shows how the stock of parked vehicles changes as arrivals and departures occur, but needs a capacity reference to be interpreted as occupancy.
Understanding the term
Boundary crossings and observation intervals affect the count. Explain whether vehicles in loading zones, unauthorized positions, or temporary restrictions are included in the accumulated stock.
Every reported measure needs a geographic boundary, observation period, unit, and documented calculation method. State how missing data, temporary closures, and sessions crossing the observation boundary are treated. Use distributions or separate user categories where an average hides important differences. Compare consistent definitions across sites and periods, and distinguish an observed association from a demonstrated causal effect. The appropriate indicator follows the policy question rather than whichever field a monitoring system happens to provide.