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Journal articles on the topic 'Undergrounding'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Ishigooka, Shota, Tatsuhito Kono, and Hajime Seya. "Urban Esthetic Benefits of Undergrounding Utility Lines in Consideration of the Three-Dimensional Landscape." Sustainability 13, no. 24 (December 19, 2021): 14023. http://dx.doi.org/10.3390/su132414023.

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Since the relative weight of form to function has been increasing in urban planning, from the esthetic viewpoint, many cities in the world have been actively pursuing the undergrounding of overhead utility lines. Esthetic factors are urban externalities in the sense that they are not directly traded in markets. Therefore, we need to control them optimally based on their benefits. In this study, we appraise the benefits of undergrounding utility lines in Japan and clarify the dependency of the residents’ willingness to pay (WTP) on the road width and building height. Our results show that the WTP for undergrounding utility lines is lower as the road becomes wider and the buildings along the road become higher. However, when the road is wide, the WTP does not change much regardless of the height of the buildings. In addition, the average value of the benefit–cost ratios of previous undergrounding projects is from approximately 2.27 to 2.65. However, 3–17% of these projects have benefit–cost ratios of less than 1.

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2

Pidkhomnyi, Oleg, and Mariya Rubakha. "Financial factors for restraining the underground economy: case of Ukraine." Economics of Development 19, no. 2 (June 16, 2020): 1–12. http://dx.doi.org/10.21511/ed.19(2).2020.01.

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The underground economy in Ukraine is one of the major obstacles on the way to accelerative economic growth and European integration processes. The high level of undergrounding leads to the weakening of the regulatory impact of fiscal and monetary policy instruments on the development of the national economy. Against this background, the financial and economic processes undergrounding is a major challenge and a top priority problem for Ukraine today. The article aims to determine the financial levers to restrict economy’s undergrounding and justify measures to reduce the risk of undergrounding by certain monetary and budgetary parameters regulation. The research methodological basis is the methods of scientific abstraction, induction, deduction, generalization, logical method. For analytical calculations there are used coefficient analysis, mathematical methods, including correlation analysis, comparison and grouping methods, synthesis, tabular and graphical methods. The Ukraine underground economy is selected as the study object example with this methods’ system using. Therefore the study, based on the calculation of the Fechner correlation coefficient, has revealed the presence, closeness and direction of the relationship between monetary indicators (values of changes in monetary aggregates M0, M2 and M3, CPI, changes in the official hryvnia rate to the US dollar), budgetary parameters (changes in intergovernmental transfers, changes in external public debt, taking into account inflation) and the underground economy level. Thus, according to the results of the analysis, the main directions of the relevant regulatory bodies influence on the national economy unshadowing have been determined.

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3

Twine, David, Howard Shiplee, and Mark Thurston. "Delivering London 2012: power lines undergrounding." Proceedings of the Institution of Civil Engineers - Civil Engineering 164, no. 6 (November 2011): 11–16. http://dx.doi.org/10.1680/cien.2011.164.6.11.

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4

McNair, Ben, and Peter Abelson. "Estimating the Value of Undergrounding Electricity and Telecommunications Networks." Australian Economic Review 43, no. 4 (November 30, 2010): 376–88. http://dx.doi.org/10.1111/j.1467-8462.2010.00608.x.

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5

Haces-Fernandez, Francisco. "Wind Energy Implementation to Mitigate Wildfire Risk and Preemptive Blackouts." Energies 13, no. 10 (May 12, 2020): 2421. http://dx.doi.org/10.3390/en13102421.

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Damages caused by wildfires in California due to transmission line failures have increased significantly in recent years. Curtailment of electric service in areas under fire threat has been implemented to avoid these wildfires. Results from this research indicated that 24% of California’s cities are at risk of wildfire, while 52% are at risk of blackout. These blackouts have resulted in significant financial losses and risk to life and health. Undergrounding current transmission lines has been proposed as a long-term solution. However, undergrounding lines would take decades to complete and increase average monthly electric bills from $80 to $260. This research investigated shortening the length of the electricity supply chain, supplying affected communities with onshore and offshore wind energy. Results showed good wind energy potential in locations near affected cities. Distance analyses revealed that more than two hundred cities (population 5.5 million) can be served by existing wind farms located at less than 50 km. Future offshore wind turbines could generate high power output (capacity factor >50% for significant periods). An analysis of diverse locations along California’s coast indicated that just one offshore wind farm could serve more than a hundred cities with cumulative population larger than one million.

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6

Taheri, Babak, Daniel K. Molzahn, and Santiago Grijalva. "Improving distribution system resilience by undergrounding lines and deploying mobile generators." Electric Power Systems Research 214 (January 2023): 108804. http://dx.doi.org/10.1016/j.epsr.2022.108804.

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7

Postigo Marcos, Fernando, Carlos Mateo Domingo, and Tomás Gómez San Román. "Improving distribution network resilience through automation, distributed energy resources, and undergrounding." International Journal of Electrical Power & Energy Systems 141 (October 2022): 108116. http://dx.doi.org/10.1016/j.ijepes.2022.108116.

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8

Galland, Olga, David Leu, Valentin Berner, and Patrick Favre-Perrod. "Resonance Analysis of a Transmission Power System and Possible Consequences of its Undergrounding." Periodica Polytechnica Electrical Engineering and Computer Science 59, no. 3 (2015): 88–93. http://dx.doi.org/10.3311/ppee.8576.

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9

Khalilnezhad, Hossein, Marjan Popov, Jorrit A. Bos, and Kees P. J. Jansen. "Influence of partial undergrounding on the transient stability of EHV power transmission systems." Electric Power Systems Research 131 (February 2016): 126–38. http://dx.doi.org/10.1016/j.epsr.2015.10.002.

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10

Lauria, Stefano, and Francesco Palone. "Maximum undergrounding degree of HV subtransmission networks as dictated by unscheduled power flows." IET Generation, Transmission & Distribution 7, no. 11 (November 1, 2013): 1202–9. http://dx.doi.org/10.1049/iet-gtd.2012.0295.

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11

Lienert, Pascal, Bernadette Sütterlin, and Michael Siegrist. "Public acceptance of high-voltage power lines: The influence of information provision on undergrounding." Energy Policy 112 (January 2018): 305–15. http://dx.doi.org/10.1016/j.enpol.2017.10.025.

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12

Larsen, Peter H. "A method to estimate the costs and benefits of undergrounding electricity transmission and distribution lines." Energy Economics 60 (November 2016): 47–61. http://dx.doi.org/10.1016/j.eneco.2016.09.011.

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13

Poulidi, N., and A. Benardos. "Moving underground for urban regeneration – Design challenges and cost assessment for the proposed undergrounding of Poseidonos av." IOP Conference Series: Earth and Environmental Science 703, no. 1 (March 1, 2021): 012023. http://dx.doi.org/10.1088/1755-1315/703/1/012023.

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14

Oba, Tetsuharu. "Effect of Undergrounding and Utility Pole Removal Projects on Land Prices Considering the Heterogeneity of Spatial and Price Ranges." Journal of the City Planning Institute of Japan 54, no. 3 (October 25, 2019): 464–71. http://dx.doi.org/10.11361/journalcpij.54.464.

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15

Dahal, Kumar P., Dinesh KC, and Jagadeesh Bhattarai. "Study on the soil corrosivity towards the buried water supply pipelines in Madhyapur Thimi municipality, Bhaktapur." BIBECHANA 11 (May 10, 2014): 94–102. http://dx.doi.org/10.3126/bibechana.v11i0.10387.

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This research work is carried out to identify the corrosive nature of soils towards the buried-galvanized steel and cast iron pipelines buried in Sanothimi areas of Madhyapur Thimi municipality, Bhaktapur based on different soil parameters such as organic content, moisture content, pH, resistivity, oxidation-reduction potential, chloride and sulfate ions. The soil parameters of the collected soil samples from the study areas were analyzed using standard ASTM methods. Concentrations of these soil parameters measured in this study were found as: organic content (0.9- 7.9%), moisture content (8.0-36.7%), pH (6.8-7.7), resistivity (3900-16700 ohm.cm), oxidation-reduction potential (337-461 mV vs SHE), chloride (25-71 ppm) and sulfate (35-464 ppm) contents. These soil parameters gave an indication of “mildly corrosive” to “less corrosive” nature of soils on the galvanized steels and cast iron pipelines buried in the study areas. Based on the findings of the present studies, it can be advised to the related authorities or local people that simple modification of the soils by using cheapest non-conducting materials like gravel or sand around the buried water supply pipelines before undergrounding them in the study areas is very beneficial from the corrosion point of view to increase their life time. DOI: http://dx.doi.org/10.3126/bibechana.v11i0.10387 BIBECHANA 11(1) (2014) 94-102

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16

Yaroshevych, Maryana. "Natural and socio-economic formation preconditions of the East-European gas hub." Visnyk of the Lviv University. Series Geography, no. 49 (December 30, 2015): 341–47. http://dx.doi.org/10.30970/vgg.2015.49.8654.

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Ukraine is the importer and the main Russian gas transiter to Europe. The underground gas storages are important for its stable supply. The need of undergrounding storage of gas for Ukraine, as well as for the majority of the gas-using countries, is caused by constantly growing gas consumption in Europe and in Ukraine particularly. The majority of the Ukrainian underground gas storages situated in the west part of Ukraine. The formation of East-European or West-Ukrainian hub is planned on the basis of these underground gas storages. The geopolitical position of the western region of Ukraine can be considered as a favourable factor of Ukrainian entry into various European economic and political structures. Also important factors of formation of a gas hub are a region environment, social and economic conditions which will influence further substantially definition of a Ukrainian place in the gas transmission system of Europe. The purpose of article is to analyse a wide range natural and socio-economic factors of functioning of the projected hub. In particular, the fossil fuels, water, forest, recreational resources allow estimate mineral base of the region; a demographic situation, interindustry complexes (fuel and energy, construction, machine-building, chemical and industrial, wood production, agro-industrial, light industry, transport, recreational, etc.) which influence formation of a gas hub. Key words: gas, underground gas storage, West-Ukrainian hub, natural conditions, socio-economic factor.

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17

Luo, J., and Q. Ye. "LIDAR-BASED INITIAL GLOBAL LOCALIZATION USING IMPERFECT ARCHITECTURAL SKELETON INFORMATION." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B1-2022 (May 30, 2022): 241–48. http://dx.doi.org/10.5194/isprs-archives-xliii-b1-2022-241-2022.

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Abstract. Initial global localization of a mobile robotic platform is the foundation for its navigation and mapping, especially when the platform enters into unknown environments. In GNSS-denied indoor scenes, LiDAR is widely used for robot localization, especially in indoor scenes with poor lighting. In most existing LiDAR-based initial global localization methods, it is necessary to build the point cloud reference map in advance, which costs a large quantity of manpower and time. For this reason, a LiDAR-based initial global localization method using imperfect architectural skeleton information is proposed in this work. Firstly, we propose a lightweight management scheme for collected imperfect architectural information, which is convenient for efficient registration with real scans. Secondly, we extract architectural skeletons (stable man-made structures such as walls and columns) from both architectural information and real scans, and design them as line pairs feature patterns like P-LP, V-LP and C-LP. Thirdly, we propose a matrix descriptor for line pairs feature patterns description and initial matching. Finally, we construct error equations to estimate the pose by initial matching line pairs, and acquire the optimal localization results with the highest hit ratio on architectural grid map. A mobile robotic platform with the 16 beam LiDAR is experimented in typical indoor scenes such as rooms, corridors and undergrounding parking lots. Experiments show that the success rate of initial global localization reaches 80%, the average position error is about 0.10m and the running time is about 400ms per 1000 scans, which meet the requirements of indoor autonomous driving.

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18

Yang, Kwangsik, and Seong-Yeun Kim. "The Analysis of Determinants of Policy Validity for Undergrounding Projects of Non-Preferred Facilities: Focused on the Case of Sihwa Power Transmission Facility." Journal of the Korean Urban Management Association 33, no. 4 (December 31, 2020): 191–205. http://dx.doi.org/10.36700/kruma.2020.12.33.4.191.

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19

Oba, Tetsuharu, and Toshikazu Inoue. "Damage of utility poles caused by 15th Typhoon of 2019 and its impact on the social acceptance of undergrounding and utility pole removal projects." Journal of the City Planning Institute of Japan 56, no. 2 (October 25, 2021): 224–33. http://dx.doi.org/10.11361/journalcpij.56.224.

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20

OBA, Tetsuharu. "CAUSAL EFFECT OF UNDERGROUNDING AND UTILITY POLE REMOVAL PROJECTS ON NEARBY LAND PRICES CONSIDERING THE TIMING OF THE PROJECT START, UNDERGROUND WORK, AND REMOVAL." Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 75, no. 6 (2020): I_181—I_190. http://dx.doi.org/10.2208/jscejipm.75.6_i_181.

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21

Sarje, Kimmo. "Moskovan undergroundin fragmentteja re-enacted." Tiede & edistys 36, no. 4 (April 1, 2011): 346. http://dx.doi.org/10.51809/te.105055.

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22

Saied, Mohamed M. "The Frequency Characteristics of Mixed Power Networks with Partial Undergrounding." International Journal of Power and Energy Research 1, no. 2 (July 25, 2017). http://dx.doi.org/10.22606/ijper.2017.12004.

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23

Taheri, Babak, Daniel K. Molzahn, and Santiago Grijalva. "Improving Distribution System Resilience by Undergrounding Lines and Deploying Mobile Generators." SSRN Electronic Journal, 2022. http://dx.doi.org/10.2139/ssrn.4097359.

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24

Trakas, Dimitris, and Nikos D. Hatziargyriou. "Strengthening Transmission System Resilience Against Extreme Weather Events by Undergrounding Selected Lines." IEEE Transactions on Power Systems, 2021, 1. http://dx.doi.org/10.1109/tpwrs.2021.3128020.

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25

Ishigooka, Shota, Tatsuhito Kono, and Hajime Seya. "Benefits of Undergrounding Utility Lines in Consideration of the Three-Dimensional Urban Landscape." SSRN Electronic Journal, 2020. http://dx.doi.org/10.2139/ssrn.3560022.

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26

Kono, Tatsuhito, Kousuke Sega, and Hajime Seya. "Estimating the Willingness to Pay for Undergrounding Utility Lines in Japan with the Hedonic Approach." SSRN Electronic Journal, 2017. http://dx.doi.org/10.2139/ssrn.3039997.

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27

Feng, Kairui, Min Ouyang, and Ning Lin. "Tropical cyclone-blackout-heatwave compound hazard resilience in a changing climate." Nature Communications 13, no. 1 (July 30, 2022). http://dx.doi.org/10.1038/s41467-022-32018-4.

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AbstractTropical cyclones (TCs) have caused extensive power outages. The impacts of TC-caused blackouts may worsen in the future as TCs and heatwaves intensify. Here we couple TC and heatwave projections and power outage and recovery process analysis to investigate how TC-blackout-heatwave compound hazard risk may vary in a changing climate, with Harris County, Texas as an example. We find that, under the high-emissions scenario RCP8.5, long-duration heatwaves following strong TCs may increase sharply. The expected percentage of Harris residents experiencing at least one longer-than-5-day TC-blackout-heatwave compound hazard in a 20-year period could increase dramatically by a factor of 23 (from 0.8% to 18.2%) over the 21st century. We also reveal that a moderate enhancement of the power distribution network can significantly mitigate the compound hazard risk. Thus, climate adaptation actions, such as strategically undergrounding distribution network and developing distributed energy sources, are urgently needed to improve coastal power system resilience.

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