The ' 70s also known research of Mohring, h., 1965 wrote the book "The nature and measurement of highway benefits: an analytical framework", due to the high speed Research Council In Virginia. The content of works focused on research to develop a framework of values to use due to the high speed system brings, from raising the value soil, until the residence value, time, convenience, tax reduction, regional development opportunities, etc. The study also refers to the extraction of high speed use, measures of maintenance and upgrades.
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