PARAMETERS OF DISPERSION FOR ON-TIME PERFORMANCE OF POSTAL ITEMS WITHIN TRANSIT TIMES MEASUREMENT SYSTEM FOR POSTAL SERVICES

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

PARAMETERS OF DISPERSION FOR ON-TIME PERFORMANCE OF POSTAL ITEMS WITHIN TRANSIT TIMES MEASUREMENT SYSTEM FOR POSTAL SERVICES

Popis výsledku v původním jazyce

The paper is focused on usage of methods for on-time performance evaluation of test postal items flows used for measurement of the transit time of end-to-end postal services for single piece priority mail. The results come out from modelling of measurement system for postal transport network efficiency in proportion to real postal traffic flows with particular discriminant characteristics. The result of on-time performance is represented by estimate of on-time probability, which can be defined as probability of case, when transit time of postal item does not exceed just one day. On-time probability is interpreted by variable called weighted estimate of on-time probability, which also includes distribution of mail flows within geographical stratification according to disjunctive set of defined postal areas. The rate of variability caused by used sample design is expressed by parameters of sample dispersion in various forms and by design factors regarding particular samples. Assessment of these calculated key parameters is the main objective of this paper, because they evaluate measurement system efficiency and could serve as base for next modelling of this system. Calculation of these parameters presumes fixed postal transportation network and domestic mail flows for various sample sizes.

Název v anglickém jazyce

PARAMETERS OF DISPERSION FOR ON-TIME PERFORMANCE OF POSTAL ITEMS WITHIN TRANSIT TIMES MEASUREMENT SYSTEM FOR POSTAL SERVICES

Popis výsledku anglicky

The paper is focused on usage of methods for on-time performance evaluation of test postal items flows used for measurement of the transit time of end-to-end postal services for single piece priority mail. The results come out from modelling of measurement system for postal transport network efficiency in proportion to real postal traffic flows with particular discriminant characteristics. The result of on-time performance is represented by estimate of on-time probability, which can be defined as probability of case, when transit time of postal item does not exceed just one day. On-time probability is interpreted by variable called weighted estimate of on-time probability, which also includes distribution of mail flows within geographical stratification according to disjunctive set of defined postal areas. The rate of variability caused by used sample design is expressed by parameters of sample dispersion in various forms and by design factors regarding particular samples. Assessment of these calculated key parameters is the main objective of this paper, because they evaluate measurement system efficiency and could serve as base for next modelling of this system. Calculation of these parameters presumes fixed postal transportation network and domestic mail flows for various sample sizes.

Druh

D - Stať ve sborníku

CEP obor

JS - Řízení spolehlivosti a kvality, zkušebnictví

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

The 10th International Days of Statistics and Economics : conference proceedings

ISBN

978-80-87990-10-0

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

1607-1616

Název nakladatele

Melandrium

Místo vydání

Slaný

Místo konání akce

Prague

Datum konání akce

8. 9. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000389515100159