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Evaluating the role of private investment in infrastructure assets.

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English


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  • Abstract:
    Public Private Partnership (P3) projects are likely to fundamentally impact entire ; transportation systems. However, most studies are focused on system modeling rather than ; policy analysis, and few studies have examined the impacts of P3s on real-size ; transportation networks. Policy guidance for devising and administering P3 contracts to ; improve transportation system performance while maintaining profitability is lacking. Using ; the transportation network of Fresno, a middle-sized city in California as an example, this ; study considers alternative P3 approaches for profit maximization and system cost ; minimization at full urban transportation network scales. Based on system modeling results, ; we offer the following recommendations for policy makers to design and promote ; successful P3 projects in urban environments: (1) to promote a profitable and a socially ; beneficial system, toll rates should be set between profit-maximizing and system-optimal ; rates; (2) even though tolls (i.e., higher travel costs) on a few roads helps reduce travel ; demand they may, counter-intuitively, lead to higher total travel cost for the transportation ; system as a whole; (3) lower limit(s), in addition to upper limit(s), for tolls may be required ; to enforce system-optimal tolling and avoid undercutting; (4) a variable tolling scheme (i.e., ; temporally and spatially varying tolls) significantly reduces congestion and increases profits ; relative to flat tolls; and (5) public officials should provide a comprehensive plan regarding ; past, current, and future P3 projects along with detailed system-wide impact analysis of ; project implementation in order to promote a more sustainable transportation system.
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    Filetype[PDF - 2.25 MB]
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    urn:sha256:de20e434a1c292254018c7147d66e7fb8e6db8ed96543e0847ba68d51f2fffe5
File Language:
English
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