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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Options for providing quality axle load data for pavement design

Wood, Steven 30 March 2017 (has links)
This research evaluates four options to produce quality axle load data for pavement design: piezoelectric WIM sites (corrected and uncorrected data), static weigh scales, and a piezo-quartz WIM site. The evaluation applies four data quality principles: data validity, spatial coverage, temporal coverage, and data availability. While all principles are considered, the research contributes in the development and application of an integrated and sequential approach to assess data validity of the options by performing analyses to determine the precision and accuracy of axle load measurements. Within the context of Manitoba, the evaluation reveals that data produced by piezo-quartz and static weigh scales have superior validity, with piezo-quartz data offering better temporal coverage, data availability, and future geographic coverage. Ultimately, the selection of the best option for providing quality axle load data depends on the relative importance of data quality principles for producing data supporting sound pavement designs and infrastructure management decisions. / May 2017
2

Přímý postih přetížených vozidel na základě měření vysokorychlostními systémy HS WIM / Direct penalisation of overloaded vehicles based on HS WIM systems

Stehlík, Petr January 2015 (has links)
This master's thesis deals with systems and technology of high speed weigh in motion stations. The main task is to evaluation of accuracy different sensor installations of weight in motion stations. A part of this thesis is an analysis of different sensor types, which are used for stations equipped with technology for enforcement, and evaluation of accuracy of axle distance measurement.

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