Academic literature on the topic 'Superelevation'

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Journal articles on the topic "Superelevation"

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Apostoleris, Konstantinos, Basil Psarianos, Ioannis-Alexandros Choupas, and Vassilios Matragos. "Skew Superelevation Edge Rounding Design Improving Riding Comfort on Freeways." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 1 (2019): 343–57. http://dx.doi.org/10.1177/0361198118821680.

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Skew superelevation has proven to be an efficient pavement constructional measure to address hydroplaning phenomena under specific critical superelevation runoff designs. However, this technique has raised concerns about user’s comfort when driving over the skewed edge of the pavement, especially for heavy vehicles and when the traveling speed is higher than the design speed. This paper aims to evaluate the driving comfort outcome on an improved skew superelevation design, where a rounding of the skew edge has been applied. This is achieved through the use of a simulation program which examine
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Pham, Bach Van, Thanh-Binh Nguyen, Viet-Cuong Dao, and Quynh-Anh Thi Bui. "Case study of superelevation design at an expressway interchange by using ADSCivil Road software." IOP Conference Series: Materials Science and Engineering 1289, no. 1 (2023): 012058. http://dx.doi.org/10.1088/1757-899x/1289/1/012058.

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Abstract Superelevation is known as a transverse slope made available to mitigate the impact of centrifugal force and minimize the vehicle’s tendency to overturn and skid. However, in an intersection or interchange that has horizontal curves with small radius consecutively, it is difficult to design superelevation. If the superelevation arrangement is not good enough, the alignment is not smooth, causing unfavourable and unsafe conditions. Moreover, for expressway interchange, it become more complicated to design by manual method because the expressway requirements in term of safety and aesthe
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Polus, Abishai, and Israel Reshetnik. "Nonlinearity aspects of edge of pavement on superelevation runoffs." Canadian Journal of Civil Engineering 23, no. 6 (1996): 1146–50. http://dx.doi.org/10.1139/l96-924.

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The purpose of this paper is to evaluate the differences between two design alternatives for the pavement edge along the superelevation runoff. The highway literature usually recommends to design the edge as a combination of straight lines, i.e., linear edge design and nonlinear change of superelevation. It is possible, however, to construct another method by which the superelevation increases linearly within the pavement along the runoff. This paper analyzes the two design alternatives and examines the differences between the two methods. It was shown that on a spiralled highway, a linear cha
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Gailienė, Inesa. "INVESTIGATION INTO THE CALCULATION OF SUPERELEVATION DEFECTS ON CONVENTIONAL RAIL LINES." TRANSPORT 27, no. 3 (2012): 229–36. http://dx.doi.org/10.3846/16484142.2012.719198.

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Railway curves have influence on train speed on a curve and/or wheel/rail interface. Additional forces that have to be compensated appear in the curves. The purpose of superelevation is to compensate acceleration emerging in the curve thus assuring comfortable passenger transportation and equal wearing of both rails. However, it is very difficult to calculate superelevation when designing and maintaining a railway track, because the estimation of actual train speed on the curves is very complicated. As we know, railway lines can be divided into conventional, high speed and heavy haul ones. As
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Zhou, Su Xia, and Rui Xue. "Analysis of the Influence of Superelevation of Subway Line Act on Wheel-Rail Wear." Applied Mechanics and Materials 577 (July 2014): 135–39. http://dx.doi.org/10.4028/www.scientific.net/amm.577.135.

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In order to reduce the wheel-rail wear and improve the safety and comfort of the vehicle during the running round the curve section, in this paper, based on the theory of vehicle dynamics and by the dynamics software-SIMPACK, it created a model on the relationship of wheel-rail. It conducted research on the three situation include deficient superelevation, normal superelecation and surplus superelevation when the train crossing the curves. It analysed the change regulation about the two parameters which are rate of wheel load reduction and overturning coefficient during running of the train. M
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Aoun, Joelle, Konstantinos Apostoleris, Basil Psarianos, and Elias Choueiri. "Operational and Safety Performance Investigation of Skew Superelevation Runoff." Transportation Research Record: Journal of the Transportation Research Board 2638, no. 1 (2017): 35–44. http://dx.doi.org/10.3141/2638-05.

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Hydroplaning and the corresponding hydroplaning speed of a vehicle are critical road safety concerns. To avoid hydroplaning, nine technical measures are available. One of the most effective is the construction of skew superelevation runoff at the critical pavement section of a highway, especially in highway rehabilitation and reconstruction projects. The concept was introduced in the German RAS-L design guide of 1984; its implementation is found mainly in central European countries. Skew superelevation runoff was adopted in recent freeway projects, some of which are reconstructions of existing
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Lemonakis, Panagiotis, George Kaliabetsos, Nikolaos Moisiadis, and Nikolaos Eliou. "A Methodology to Investigate Powered Two-Wheeler Rider’s Comfort over Road Sections with Skew Superelevation." WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL 16 (November 22, 2021): 592–99. http://dx.doi.org/10.37394/23203.2021.16.55.

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The proper surface water drainage not only affects vehicle movement dynamics but also increases the likelihood of an accident since inadequate drainage is associated with potential hydroplaning and splash and spray driving conditions. Nine solutions have been proposed to address hydroplaning in sections with inadequate drainage e.g. augmented superelevation and longitudinal slope, reduction of runoff length, and skew superelevation. The latter has been extensively implemented in highways recently, enhancing the safety level in the applied road segments regarding the effective drainage of the r
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Atwood, Genevieve, Tamara Wambeam, and Charles Oviatt. "Shoreline superelevation, clues to coastal processes of Great Salt Lake." Geosites 51 (January 14, 2024): 1–24. http://dx.doi.org/10.31711/ugap.v51i.138.

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Coastal processes create the shoreline evidence of Great Salt Lake. Shoreline superelevation is the difference in elevation between still water lake level and the shoreline evidence produced by the lake at that level. Processes of formation include effects of wind strength, fetch, beach attributes, coastline aspect, and coast morphology. A series of field studies from 1986 through 2000 concluded strong storm winds from the northwest contribute to the patterns and magnitude of shoreline superelevation. Weather data for 2020-2023 for Gunnison Island and Hat Island document strong storm winds fro
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Hu, Jiangbi, Lucheng He, Ronghua Wang, Chike Yuan, and Xiaojuan Gao. "The Permitted Dimension of Guide Sign in Freeway Tunnel Restricted by the Geometric Space of the Tunnel Vault." Mathematical Problems in Engineering 2020 (July 27, 2020): 1–11. http://dx.doi.org/10.1155/2020/4892723.

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Traffic guide signs should be settled in a freeway tunnel when there is a short distance between the interchange exit ramp and the tunnel exit in order to provide enough reaction time for drivers. However, there is not enough space for guide sign in a tunnel adopting the same design method as the guide sign along the general segment of the freeway. The maximum dimension of a guide sign in tunnel should be studied firstly. Based on the analysis of the characteristics of the inner outline design of the tunnel and its relationship with the guide sign dimension, the study was classified into diffe
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Gailienė, Inesa, Martynas Gedaminskas, and Alfredas Laurinavičius. "APPROACH TO RATIONAL CALCULATION OF SUPERELEVATION IN DUAL GAUGE TRACK." Transport 33, no. 3 (2018): 699–706. http://dx.doi.org/10.3846/transport.2018.1577.

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One of the technical possibilities to solve a gauge crossing is to install a dual gauge. This solution has several advantages and disadvantages discussed in this paper. Lack of experience of maintenance and lack of standards for the design of dual track are among the most important disadvantages. The wheel and rail interface on track curves is more difficult than in straight sections. Therefore, the subject of the present article is a geometrical parameter of dual gauge track, i.e., the rail superelevation, which has an impact on the wheel–rail interaction at curves and influences the value of
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Dissertations / Theses on the topic "Superelevation"

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Powell, Alexander Frank. "An investigation into the relationship between vertical and lateral forces, speed and superelevation in railway curves." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/59440.

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The Gautrain Rapid Rail Link (GRRL) is a rail transit system in South Africa that links Johannesburg and Pretoria, as well as Johannesburg and the O.R. Tambo International Airport. Travelling at speeds of up to 160 km/h, the Gautrain system is the first of its kind on the African continent. This dissertation covers an investigation into the relationship between the vertical and lateral forces, speed and superelevation in a GRRL curve. The research described in this dissertation is based on an experiment which involved running a test train through a curve at various speeds, changing the cant of
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Arakawa, Maki. "Contribuição ao estabelecimento do comprimento desejável da espiral de transição em rodovias rurais e urbanas." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3138/tde-19072013-121004/.

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A curva de transição apresenta um raio de curvatura variando de um valor infinito no fim da tangente até um valor igual ao raio da curva circular no final da curva de transição. Nos projetos rodoviários, o tipo de curva mais utilizado é a clotóide, pois esta corresponde à trajetória descrita pelo veículo, com uma velocidade constante e o volante girando com velocidade angular constante. Consequentemente, é uma situação em que não requer esforço do motorista, proporciona uma trajetória mais natural e um aumento/redução da aceleração radial de um veículo de forma gradual. O presente trabalho adm
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Abia, Sonny D. "Application of Reliability Analysis to Highway Design Problems: Superelevation (e) Design, Left Turn Bay Design-Safety Evaluation and Effect of Variation of Peak Hour Volumes on Intersection Signal Delay Performance." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/447.

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This research has three parts. Part 1: The Policy on Geometric Design of Highways and Street provides 5 methods of superelevation (e) distribution. Many states use methods 2 and 5 for low speed, urban and rural high-speed facilities. Method 5 aims to address speed variations; but is complicated, computationally intractable and may violate design consistency. Design recommendation by NCHRP439 accounts for speed variation, tractable; but is cumbersome along with irregular/step-wise design curves. New reliability based e distribution method is developed that addresses the speed variation; which
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Sobková, Jolana. "Mimoúrovňové křížení železniční trasy Přerov - Brno silnicí III/4349 v Chropyni." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409824.

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Master‘s thesis is created in a form of a study and deals with the level crossing of the railway line in Chropyně. Thesis solves modification of existing crossover in two variants in the road design cathegory marked as S7,5. This master‘s thesis verify a direction of road by underpass beneath the railway line number 300. Although mainly this study solves the option of overcoming the railway overpass in the displaced position. At the same time it deals with various possibilities of connecting the displaced option to the existing road network.
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Stránský, Jakub. "Optimalizace vybraných návrhových prvků ČSN pro projektování pozemních komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227496.

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The master‘s thesis focuses on the optimization of the design values of curves of the horizontal alignments of the roads. It deals with the comparison of values between czech and foreign standards and differences between them. The practical part examines the values of the real speeds of vehicles passing through the curves of various parameters that were measured during measurements of selected curves during 2014. From these data a new design values are derived that could be used for the design of horizontal alignments.
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Hašek, Jan. "Modernizace trati Brno – Přerov v okolí Vyškova pro rychlost 200 km/h." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226030.

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The objective of this master´s thesis is a design of modernization of railway line no. 300 Brno – Přerov in Vyškov area and its vicinity for speed 200 km/h. The track section is located between railway station Luleč and Ivanovice na Hané. The track is designed in two variants. The first variant is proposed keeping railway line through Vyškov railway station including necessary modification of the railway station. The second variant suggests keeping track outside Vyškov and a connection with the railway station by bridging is designed.
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Jeong, Jaehak 1974. "A hydrodynamic diffusion wave model for stormwater runoff on highway surfaces at superelevation transitions." Thesis, 2008. http://hdl.handle.net/2152/3905.

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Superelevation transition is often used to help balance the centrifugal forces on vehicles through curved roadway sections. Such transitions have regions with near-zero cross-slope as the pavement cross-section rotates from a negative to positive grade. For drainage of roadway surfaces, regions with near-zero slope constitute 'irregular topography'. This condition promotes extended stormwater runoff drainage path lengths and may result in excessive splash from vehicles and hydroplaning. A critical concern is the effect of longitudinal slope on stormwater drainage through superelevation tra
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Books on the topic "Superelevation"

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Bonneson, James A. Superelevation distribution methods and transition designs. National Academy Press, 2000.

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Torbic, Darren J., Mitchell K. O’Laughlin, Douglas W. Harwood, et al. Superelevation Criteria for Sharp Horizontal Curves on Steep Grades. Transportation Research Board, 2014. http://dx.doi.org/10.17226/22312.

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Atwood, Genevieve. Shoreline superelevation: Evidence of coastal processes of Great Salt Lake, Utah. Utah Geological Survey, 2006.

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Shoreline Superelevation: evidence of coastal processes of Great Salt Lake, Utah. Utah Geological Survey, 2006. http://dx.doi.org/10.34191/mp-06-9.

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Book chapters on the topic "Superelevation"

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Walker, John, and Joseph Awange. "Transition Curves and Superelevation." In Surveying for Civil and Mine Engineers. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45803-4_11.

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Walker, John, and Joseph Awange. "Calculations of Superelevation on a Composite Curve." In Surveying for Civil and Mine Engineers. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45803-4_12.

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Lemonakis, P., S. Apostolakis, G. Kaliabetsos, and N. Eliou. "Investigation of rainwater runoff on skew superelevation cross sections." In Bituminous Mixtures and Pavements VIII. CRC Press, 2024. http://dx.doi.org/10.1201/9781003402541-89.

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Ruggiero, David, Paola Costanza Miglietta, Benoit Boulanger, and Tibor Kokai. "A Simple, Closed-Form Method for Determining the Superelevation of Tall Reinforced Concrete Buildings." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-32511-3_104.

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"superelevation." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_198949.

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"superelevation, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/5543023373.

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"6205 superelevation [n]." In Encyclopedic Dictionary of Landscape and Urban Planning. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_14271.

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"CHAPTER V SUPERELEVATION ON HIGHWAY CURVES." In ROAD ENGINEERING. Thomas Telford Publishing, 2011. http://dx.doi.org/10.1680/re.52000.0005.

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Al-Khateeb, Ghazi G. "Design of Horizontal Curves and Superelevation." In Highway Planning, Survey, and Design. CRC Press, 2020. http://dx.doi.org/10.1201/9780429054310-14.

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Soeffner, Hans-Georg, and Mara Luckmann. "Style and Stylization: Punk, or the Superelevation of Everyday Life." In The Order of Rituals. Routledge, 2018. http://dx.doi.org/10.4324/9781351293761-2.

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Conference papers on the topic "Superelevation"

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Mermigas, Konstantinos Kris. "Geneva St Ramp: Replacement of Steel Girder Bridge with Post-Tensioned Concrete Structure on Existing Foundations." In IABSE Congress, San José 2024: Beyond Structural Engineering in a Changing World. International Association for Bridge and Structural Engineering (IABSE), 2024. https://doi.org/10.2749/sanjose.2024.0048.

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<p>The ramp was built in 1963 as part of the original Hwy 406 south of St. Catharines. The existing bridge consisted of five simply supported spans of 22.6 m, each supported by two steel plate girders composite with a concrete deck. The ramp was regularly maintained through the years: a waterproofing membrane was added in 1979 along with sealed expansion joints, and the expansion joints replaced again in 1998. In 2015, the condition of major components had deteriorated significantly and coupled with concerns for redundancy and structural steel details vulnerable to constraint induced fra
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Hasan, Nazmul. "Maximum Allowable Speed on Curve." In 2011 Joint Rail Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/jrc2011-56007.

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It is generally recognized by FRA, AREMA, Amtrak, OSHA, and many other applicable authorities that the maximum acceptable rate of radial acceleration for passengers comfort is 0.1g, where ‘g’ is 9.81 m/s/s. Jerk is limited to 0.03g/s. In the industry the maximum allowable speed (km/h) is calculated by: Vmax=(Ea+Eu′)R11.8 where Eu′ = Blanket unbalance usually greater than design unbalance (mm); Ea = Actual superelevation applied to track (mm); R = Curve radius (m). Clearly the purpose of the equation is to achieve a gain in speed with using the existing spiral at the cost of the comfort limit.
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Hasan, Nazmul. "Passenger Track Curve Design Criteria: Comfort Criteria, Equivalent Comfort Criteria, and Application." In 2011 Joint Rail Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/jrc2011-56012.

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It is generally recognized by FRA, AREMA, Amtrak, OSHA, and many other applicable authorities that the maximum acceptable rate of radial acceleration for passengers comfort is 0.1g, where ‘g’ is 9.81 m/s/s [1]. Jerk is limited to 0.03g/s [1]. Roll is limited to 1 deg/sec. In this paper all values computed with the aforesaid standard values are referred to as the maximum desirable values as these may be exceeded if needed. Currently there is no procedure in the literature to compute the maximum desirable values. From these comfort criteria the formulae for superelevation run off, rate of change
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Wang, Yuchen, Tao Lu, Hongxing Zhao, and Zhiying Bao. "Optimization Method of Superelevation Transition for Oval Racing Tracks." In 19th COTA International Conference of Transportation Professionals. American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482292.183.

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Huang, Qinghong, and Hongjing Fan. "Optimization Modeling of Superelevation Rates Based on Operation Speed." In Tenth International Conference of Chinese Transportation Professionals (ICCTP). American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41127(382)58.

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Zhang, Zhaojun, and Jianchuan Cheng. "Safety Margin-Based Analysis on Road Superelevation Rate Selection." In 15th COTA International Conference of Transportation Professionals. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479292.221.

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Ghahfarokhi, G. R. Shams, P. H. A. J. M. van Gelder, and J. K. Vrijling. "Evaluation of Superelevation in Open Channel Bends with Probabilistic Analysis Methods." In World Environmental and Water Resources Congress 2008. American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40976(316)244.

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Chaithoo, D. B., and D. Allopi. "Re-evaluating superelevation in relation to drainage requirements and vehicle dynamics." In Urban Transport 2012. WIT Press, 2012. http://dx.doi.org/10.2495/ut120521.

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Zhao, Yifei, Shuaijie Sun, Huanchun Jin, and Zhitao Li. "Research on the Superelevation Transition Mode of Expressway under Rainy Conditions." In 21st COTA International Conference of Transportation Professionals. American Society of Civil Engineers, 2021. http://dx.doi.org/10.1061/9780784483565.127.

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Teng, Xiuhua, Li Wang, Ruipeng Yu, and Qichen Wu. "Analysis of obstacle superelevation in airport clearance area based on Cesium." In Second International Conference on Environmental Remote Sensing and Geographic Information Technology (ERSGIT 2023), edited by Jun Qin and Wenjin Yu. SPIE, 2024. http://dx.doi.org/10.1117/12.3024498.

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Reports on the topic "Superelevation"

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Savolainen, Peter, and Andrzej Tarko. Safety of Intersections on High-Speed Road Segments with Superelevation. Purdue University, 2004. http://dx.doi.org/10.5703/1288284313307.

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