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Displaying results 1 to 6 of 6.

  1. Infrastructure Inequality
    Who Pays the Cost of Road Roughness?
    Author: Currier, Lindsey; Glaeser, Edward L.; Kreindler, Gabriel E.
    Published: December 2023
    Publisher:  National Bureau of Economic Research, Cambridge, Mass

    Which Americans experience the worst infrastructure? What are the costs of living with that infrastructure? We measure road roughness throughout America using vertical acceleration data from Uber rides across millions of American roads. Our measure... more

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    Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden
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    Universitätsbibliothek Freiburg
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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
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    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Which Americans experience the worst infrastructure? What are the costs of living with that infrastructure? We measure road roughness throughout America using vertical acceleration data from Uber rides across millions of American roads. Our measure correlates strongly and positively with other measures of road roughness where they are available, negatively with driver speed, and we find road repair events decrease roughness and increase speeds. We measure drivers' willingness-to-pay to avoid roughness by measuring how speeds change with salient changes in road roughness, such as those associated with town borders and road repaving events in Chicago. These estimates suggest the roughness of the median local road in the US generates welfare losses to drivers of at least 31 cents per driver-mile. Roads are worse near coasts, and in poorer towns and in poorer neighborhoods, even within towns. We find that a household that drives 3,000 miles annually on predominantly local roads will suffer $318 per year more in driving pain if they live in a predominantly Black neighborhood than in a predominantly White neighborhood. Road roughness modestly predicts subsequent road resurfacing in New York City, but not in three other cities, which suggests that repaving is only weakly targeted towards damaged roads. Surveys from 120 towns and cities across the US suggest many reasons why resurfacing seems to be weakly targeted

     
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    Source: Union catalogues
    Language: English
    Media type: Book
    Format: Online
    Series: NBER working paper series ; no. w31981
    Subjects: Straße; Straßennetz; Straßenbau; Soziale Kosten; Chicago (Ill.); USA; Railroads and Other Surface Transportation; Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure; Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise; Government and Private Investment Analysis; Road Maintenance; Transportation Planning
    Scope: 1 Online-Ressource, illustrations (black and white)
    Notes:

    Hardcopy version available to institutional subscribers
  2. Procurement and Infrastructure Costs
    Author: Liscow, Zachary; Nober, Will; Slattery, Cailin
    Published: September 2023
    Publisher:  National Bureau of Economic Research, Cambridge, Mass

    Infrastructure costs in the United States are high and rising. The procurement process is one potential cost driver. In this paper we conduct a survey of procurement practices across the 50 states. We survey both employees at each state department of... more

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    Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden
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    Universitätsbibliothek Freiburg
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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
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    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
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    No inter-library loan

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    No inter-library loan

     

    Infrastructure costs in the United States are high and rising. The procurement process is one potential cost driver. In this paper we conduct a survey of procurement practices across the 50 states. We survey both employees at each state department of transportation (DOT) and the road builders that win contracts to build and maintain roads. With this survey we are able to create a new dataset of procurement rules and practices across the U.S. and understand what actors on the ground think drive costs. We then assemble a new dataset of project-level infrastructure costs. We correlate the survey practices with our new, detailed data on costs. We find that two important inputs in the procurement process appear to particularly drive costs: (1) the capacity of the DOT procuring the project and (2) the lack of competition in the market for government construction contracts

     
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  3. AutoCAD MAP 3D Toolset, "schwarz/weiß" (zur Information)
    6. Buch, Autodesk GIS Anwendung (mit Übungsbeispielen)
    Author: Domsch, Gert
    Published: 2023
    Publisher:  epubli, Berlin

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  4. Civil 3D Version 2023/AutoCAD MAP 3D Toolset, "farbige Darstellung" (für Anwender)
    6. Buch, Autodesk GIS Anwendung (mit Übungsbeispielen)
    Author: Domsch, Gert
    Published: 2023
    Publisher:  epubli, Berlin

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  5. Civil 3D Version 2023/Civil 3D 2023 Geotechnical Modeler und Alternativen " farbig für Anwender"
    7. Buch, Civil 3D ergänzende Funktionen, Funktionserweiterung zur Information, Version 2023
    Author: Domsch, Gert
    Published: 2023
    Publisher:  epubli, Berlin

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  6. Civil 3D Version 2023/Civil 3D 2023 Geotechnical Modeler und Alternativen "schwarz/weiß" (Information)
    7. Buch, Civil 3D ergänzende Funktionen, Funktionserweiterung zur Information, Version 2023
    Author: Domsch, Gert
    Published: 2023
    Publisher:  epubli, Berlin

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