Measurement and evaluation
Overstay
Dépassement de durée
Overstay is a stay that exceeds the maximum duration or authorized session end under the applicable rule. It should be measured using reliable timestamps and the relevant grace or exemption provisions, because a long observed stop is not necessarily unlawful when eligibility or operating conditions differ.
Understanding the term
Separate time-limit violations from expired payment sessions. A driver can pay for a session yet violate a maximum stay, or remain within a limit while failing to pay.
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.