Pošta Slovenije: domestic transit time measurement

Quotas has also been measuring domestic delivery times in Slovenia.

Pošta Slovenije commissioned us for the first time in 2005 and did so again in 2015. Many thousands of test mailings are have been sent annually between household and corporate panelists. Analogously to our other letter transit time measurements, we have created mail flows that are representative of the different letter types and mailing options.

In addition to evaluating delivery times we also collect data on specific stages of a postal route. The QuoTrax®-system, a technology developed by Quotas, makes use of special transponders enclosed with the test letters to record the different stages of the route from the first mile (in the postbox) via Pošta Slovenije sorting centers to the last mile (delivery to a household’s letterbox).

As a key indicator we record and report the percentage of letters that actually reach the recipients one day after posting them (J+1). The first study was implemented in accordance with the European standard EN 13850 and has been annually audited by an independent auditor.


Deutsche Post – bulk mail transit times

Deutsche Post: bulk mail transit times The aim of this two-part measurement system is to look in detail at the receipt and learn more »

Deutsche Post – letter transit times

In order to measure domestic letter transit times our German corporate and household panelists send and receive more than 300,000 test letters per year. The data learn more »

Post Danmark

A long-term study Quotas has been conducting on behalf of Post Danmark involves measuring delivery times for various postal products in Denmark learn more »

Spring Global Mail

On behalf of the international postal service provider Spring Quotas had been monitoring the quality of its global logistics network for several years. Every year, thousands of test learn more »


Dr. Uta Heyen @ Quotas GmbH

Dr. Uta Heyen

Head of Quality Research International

  • Phone: +49 (0)40 41 09 69 -15
  • Email: