Ankomsthastigheden

Ankomsthastigheden is a Danish term that translates to "arrival speed" in English. It refers to the speed associated with the moment when an object or entity arrives at a designated point, or more generally the rate at which arrivals occur into a system.

In practice, ankomsthastigheden can describe two related ideas: the instantaneous velocity of an object at the moment of arrival in a physical sense (for example a vehicle approaching a stop line or a particle reaching a detector), and the throughput of arrivals into a process (for example buses arriving at a station or packets arriving at a network node).

Measurement and calculation: For physical arrivals, speed is determined from position and time data, often via sensors or trajectory analysis; for system arrivals, the concept is captured by inter-arrival times or arrival rate, estimated from timestamps of successive arrivals. It is distinct from travel speed, which describes motion before arrival, and from arrival time, which records when the arrival occurs rather than its rate or instantaneous velocity.

Uses and limitations: The term is primarily found in Danish-language sources and in discussions of transport logistics or experimental physics in Danish contexts. In English-language literature, related ideas are usually described with terms such as arrival rate, time of arrival, or arrival velocity. Ambiguities can arise if the precise meaning—velocity at arrival versus rate of arrival—is not specified.

Origin and related terms: The word is a compound of ankomst (arrival) and hastighed (speed). Related Danish terms include ankomsttid (time of arrival) and avgangshastighed (departure speed).