Using Toll Data to Improve the Quality of Road Freight Transport Statistics (RFTS) on Austrian Roads
The European road freight transport statistics (RFTS) result from surveys, which
are conducted by several states on the basis of EU-legislation. As there is no strict
methodology for the implementation of these surveys, they are slightly different regarding
the individual states.
This article analyses the additional use of toll data to improve the European RFTS
and to impute transport volume and performance of third states affecting the Austrian
territory. First, it was attempted to derive journeys as dened in the RFTS from the toll
data and assign them to their type of transport. These analyses were very elaborate but
showed no satisfying results. The number of journeys from the RFTS data and toll data
were too different to allow a reliable interpretation. Hence, this approach was rejected.
A comparison of vehicle-kilometres on the higher road network between the two data
sources proved to be more successful, as the differences were in an explainable and accept-
able scope. Two thirds of them could be derived from methodological reasons regarding
the survey in the respective member states and due to missing third states. On the basis
of the vehicle-kilometres from the toll data a correction factor for the RFTS results of
the individual member states and a procedure for the
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