Investment Prioritization Methods for Low-Volume Roads (2018) / Chapter Skim
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10 Investment Prioritization Methods for Low-Volume Roads disproportionally dependent on them and therefore may be, in some cases, subject to a degree of socioeconomic distress. This raises the importance of basic access considerations when planning and managing LVR.
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Review of the Literature 11 literature on the trade-offs associated with selecting or maintaining different types of paved and unpaved surfaces (Zimmerman and Wolters 2004, Kentucky Transportation Center 2003, and Landers 2015) ; and within the literature on the implications of bridge postings and closures due to inadequate maintenance (Miller 2015a, Miller et al.
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12 Investment Prioritization Methods for Low-Volume Roads of state and provincial transportation agencies found that 40% of responding agencies reported a match between pavement management systems improvement recommendations and funded projects at least 70% of the time; about the same percentage reported that system recommendations matched funded projects between 40% and 70% of the time (Zimmerman 2017)
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Review of the Literature 13 options include simplifications employed by the RED model; discussions of cost-effectiveness analysis to address benefits that cannot be easily monetized and, by extension, the weighted cost-effectiveness analysis or multicriteria analysis; and a series of specific enhancements to consumer surplus approaches that are presented as being particularly relevant to LVRs. Specific enhancements include (1)
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14 Investment Prioritization Methods for Low-Volume Roads In a recent publication, Agarwal et al.
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Review of the Literature 15 Gravel Road Maintenance Program, the Commission requires that county conservation districts develop ranking sheets and numerical scoring for project prioritization. The state-offered sample criteria are based primarily on environmental conditions and effectiveness of proposed solutions from an environmental perspective but also suggest other considerations, including "types of road use (residential, school bus route, timber, agriculture, etc.)
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16 Investment Prioritization Methods for Low-Volume Roads TNI Subcriteria Subcriteria Classification Fragility (F) Developed in the Scottish Highlands, the concept of "fragile areas" identifies areas "where there is a risk that the local communities may not be strong enough to survive." Fragile areas are defined as communities "being in decline or in danger of decline" as determined through a composite of fragility indicators: • Social fragility -- population.
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Review of the Literature 17 freight and military, and accessibility and connectivity) and 50% based on qualitative input from local DOT divisions and planning partners (North Carolina DOT 2017)
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18 Investment Prioritization Methods for Low-Volume Roads Methodological and data challenges. Looking beyond contextual factors, the reviewed literature also highlights methodological challenges that can make LVR management and investment decision making a challenge.
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Review of the Literature 19 markets, alternative income sources, schools, health facilities, and other social activities. They also play a central role in increasing opportunities for disadvantaged communities.
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20 Investment Prioritization Methods for Low-Volume Roads • Significance. There is broad agreement across the literature that adequately maintained LVRs directly affect travel costs, improve circumstances for the economy of the served area, and enhance the social welfare of the individuals using the road.
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21 3.1 Overview This chapter examines the current state of agency practice concerning the prioritization of investments in LVRs. A survey gathered information on the experiences, challenges, and approaches of agencies responsible for prioritizing LVR investments.
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22 Investment Prioritization Methods for Low-Volume Roads Source: Survey questionnaire (Appendix A)
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24 Investment Prioritization Methods for Low-Volume Roads – Class II and III – Federal Aid Local Roads – Essentially all non-NHS classified as low volume. – When we prioritize "regionally significant" projects, that significance is directly related to volumes.
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