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Investment and policy decisions involving rural road networks in Saskatchewan : a network design approachChristensen, Paul Normann 13 January 2006
Worldwide, rural road networks serve a vital link in the chain leading goods to markets and people to places. The efficiency of rural road network services is influenced by road-related investment and policy decisions. Reaching good decisions, however, is complicated by: interrelationships among policy, investment, road use, road performance, and rural economies; and combinatorial challenges involving the distribution of discrete policy and investment arrangements across networks.</p><p>The main objective of this study is to address this complex problem as it pertains to rural road networks in Saskatchewan. Rural roads in Saskatchewan are suffering under increasing volumes of heavy truck traffic motivated principally by recent changes in the grain handling and transportation system. To address this problem, Saskatchewan Department of Highways and Transportation is considering a range of haul policy and road structure investment options. The question is, what (spatial) arrangement of available policy and investment options best meets this challenge. </p><p>To answer this question, a cost-based standard is incorporated within a network design modeling approach and solved using custom algorithmic strategies. Applied to a case study network, the model determines a demonstrably good arrangement of costly road structure modifications under each considered policy option. Resulting policy-investment combinations are subsequently ranked according to total cost and equivalent net benefit standards. </p><p>A number of important findings emerge from this analysis. Policy and investment decisions are linked; spatial arrangement of road structure modifications is contingent on the haul policy regime in place. Road performance and use characteristics are indeed sensitive to policy and investment decisions. Optimal budget levels computed by the model contradict perceptions that rural road networks in Saskatchewan are grossly under-funded. Despite best intentions, ill-considered policy can actually reduce the net benefits of road provision and use. </p><p> Model application and design limitations suggest promising avenues for future research. These include: model larger networks in Saskatchewan and beyond; determine optimal road budgets under benefit-cost standards reflecting competing economic needs; employ model within regional economic planning investigations to forecast road-related implications; and model policy endogenously to aid design of heavy haul sub-networks and to address questions concerning network expansion or contraction.
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Investment and policy decisions involving rural road networks in Saskatchewan : a network design approachChristensen, Paul Normann 13 January 2006 (has links)
Worldwide, rural road networks serve a vital link in the chain leading goods to markets and people to places. The efficiency of rural road network services is influenced by road-related investment and policy decisions. Reaching good decisions, however, is complicated by: interrelationships among policy, investment, road use, road performance, and rural economies; and combinatorial challenges involving the distribution of discrete policy and investment arrangements across networks.</p><p>The main objective of this study is to address this complex problem as it pertains to rural road networks in Saskatchewan. Rural roads in Saskatchewan are suffering under increasing volumes of heavy truck traffic motivated principally by recent changes in the grain handling and transportation system. To address this problem, Saskatchewan Department of Highways and Transportation is considering a range of haul policy and road structure investment options. The question is, what (spatial) arrangement of available policy and investment options best meets this challenge. </p><p>To answer this question, a cost-based standard is incorporated within a network design modeling approach and solved using custom algorithmic strategies. Applied to a case study network, the model determines a demonstrably good arrangement of costly road structure modifications under each considered policy option. Resulting policy-investment combinations are subsequently ranked according to total cost and equivalent net benefit standards. </p><p>A number of important findings emerge from this analysis. Policy and investment decisions are linked; spatial arrangement of road structure modifications is contingent on the haul policy regime in place. Road performance and use characteristics are indeed sensitive to policy and investment decisions. Optimal budget levels computed by the model contradict perceptions that rural road networks in Saskatchewan are grossly under-funded. Despite best intentions, ill-considered policy can actually reduce the net benefits of road provision and use. </p><p> Model application and design limitations suggest promising avenues for future research. These include: model larger networks in Saskatchewan and beyond; determine optimal road budgets under benefit-cost standards reflecting competing economic needs; employ model within regional economic planning investigations to forecast road-related implications; and model policy endogenously to aid design of heavy haul sub-networks and to address questions concerning network expansion or contraction.
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Planering av förbifarter och ringleder i tätorter : En dokumentstudie om vägplanering / Planning of bypasses and ring roads in localities : A study about road planningKauppi, Jonathan January 2024 (has links)
We are constantly building new roads and are trying to make them safer and more efficient. This thesis has looked into how the benefits and disadvantages has been described with building new roads and specifically bypass roads. The thesis has also explored on how the handling of the citizens have been made from the municipal part and from the side of the Swedish Transport Administration. The analysis in this study has been made with a directed content analysis, this means that the previous scientific research and theories have been used to form the framework used in the coding scheme. Documents from the municipalities and planning documents from the Swedish Transport Administration have been used in the coding scheme. In total 10 documents combined have been analyzed from Skellefteå, Söderköping and Linghem connected to the building of bypass roads in the localities. The study has shown that in all the localities there are negative effects on the environment, landscape and land that is being used, but in all the cases the Swedish Transport Administration and the municipalities argue that the roads have more positive benefits than negative, the bypass roads lead to a higher traffic safety, less emissions and a better accessibility in the central parts of the localities. Regarding the communications it’s clear that the municipalities prioritize the inhabitants and are constantly working to improve it. The Swedish Transport Administration works with communication in all the stages in the planning process. Both the municipalities and the Swedish Transport Administration describe that they value the public interest higher than the private. But with how the Swedish Transport Administration works with communicative planning it could be concluded that they only follow the necessary steps that they are legally required to.
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