| 1. |
- Dimopooulou, Efi, et al.
(författare)
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3D Cadastres Best Practices, Chapter 2: Initial Registration of 3D Parcels
- 2018
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Ingår i: FIG Congress 2018. - Copenhagen : International Federation of Surveyors, FIG. - 9788792853783
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Registering the rights of a 3D parcel should provide certainty of ownership, protection of rights and unambiguous spatial location. While not all cadastral jurisdictions in the world maintain a digital cadastral database, the concepts of such registration hold true regardless of whether it is a paper-based cadastre or a digital one. Similarly, the motivations and purpose for the creation of a 2D cadastre for individual jurisdictions applies to3D cadastre as well. It provides security of ownership for3D parcels, protects the rights of the owners, and provides valuable financial instruments such as mortgage, collateral, valuation and taxation. The current life cycle of the development of a land parcel includes processes startfrom outside the cadastral registration sphere, such as zoning plans and permits, but has a direct impact on how a certain development application is processed. Thus, in considering the changes required to allow a jurisdiction to register 3D, it is important to note the sphere of influence that could have an impact on 3D registration. These include planners, notaries, surveyors, data managers and registrars; however for the purpose of this paper, the research is focused on the core 3D aspects that are institutional, legal and technical. This paper explores approaches and solutions towards the implementation of initial 3D cadastral registration, as derivedby current procedures of registration of 3D parcels in various countries worldwide. To this end, the paper analyses the categorisations and approaches of3D spatial units and examines the validation requirements (constraints) on a cadastral database, at various levels of maturity. In this view, 3D data storage and visualization issues are examined in relation to the level of complexity of various jurisdictions, as provided by the results of the country inventory combined with a worldwide survey in 2010 and updated in 2014 (Van Oosterom, et al., 2014). It appearsthat significant progress has been achieved in providing legal provisions for the registration of 3D cadastres in many countries and several have started to show 3D information on cadastral plans such as isometric views, vertical profiles or text environment to facilitate such data capture and registration. Moreover, as jurisdictions progress towards an implementation of 3D cadastre, much 3D data collected in other areas (BIM, IFC CityGML files, IndoorGML, InfraGML and LandXML) open up the possibility of creating 3D cadastral database and combining with the existing datasets.The usability, compatibility and portability of these datasets is a low cost solution to one of the costliest phases of the implementation of 3D cadastres, which is the initial 3D data capture.
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| 2. |
- Dimopooulou, Efi, et al.
(författare)
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Chapter 2. Initial Registration of 3D Parcels
- 2018
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Ingår i: Best Practices 3D Cadastres - Extended version. - Copenhagen, Denmark : International Federation of Surveyors. - 9788792853646 ; , s. 67-94
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Bokkapitel (refereegranskat)abstract
- Registering the rights of a 3D parcel should provide certainty of ownership, protection of rights and unambiguous spatial location. While not all cadastral jurisdictions in the world maintain a digital cadastral database, the concepts of such registration hold true regardless of whether it is a paper-based cadastre or a digital one. Similarly, the motivations and purpose for the creation of a 2D cadastre for individual jurisdictions applies to3D cadastre as well. It provides security of ownership for3D parcels, protects the rights of the owners, and provides valuable financial instruments such as mortgage, collateral, valuation and taxation. The current life cycle of the development of a land parcel includes processes startfrom outside the cadastral registration sphere, such as zoning plans and permits, but has a direct impact on how a certain development application is processed. Thus, in considering the changes required to allow a jurisdiction to register 3D, it is important to note the sphere of influence that could have an impact on 3D registration. These include planners, notaries, surveyors, data managers and registrars; however for the purpose of this paper, the research is focused on the core 3D aspects that are institutional, legal and technical. This paper explores approaches and solutions towards the implementation of initial 3D cadastral registration, as derivedby current procedures of registration of 3D parcels in various countries worldwide. To this end, the paper analyses the categorisations and approaches of3D spatial units and examines the validation requirements (constraints) on a cadastral database, at various levels of maturity. In this view, 3D data storage and visualization issues are examined in relation to the level of complexity of various jurisdictions, as provided by the results of the country inventory combined with a worldwide survey in 2010 and updated in 2014 (Van Oosterom, et al., 2014). It appearsthat significant progress has been achieved in providing legal provisions for the registration of 3D cadastres in many countries and several have started to show 3D information on cadastral plans such as isometric views, vertical profiles or text environment to facilitate such data capture and registration. Moreover, as jurisdictions progress towards an implementation of 3D cadastre, much 3D data collected in other areas (BIM, IFC CityGML files, IndoorGML, InfraGML and LandXML) open up the possibility of creating 3D cadastral database and combining with the existing datasets.The usability, compatibility and portability of these datasets is a low cost solution to one of the costliest phases of the implementation of 3D cadastres, which is the initial 3D data capture.
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| 3. |
- Dimopooulou, Efi, et al.
(författare)
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Chapter 2. Initial Registration of 3D Parcels
- 2018
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Ingår i: Best Practices 3D Cadastres - Printed version. - Copenhagen, Denmark : International Federation of Surveyors. - 9788792853646 ; , s. 19-27
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- 3D geoinformation is becoming increasingly important towards decision-making, land management and land development. Research has demonstrated the actual added value of 3D information over 2D in the cases of an overall more efficient integration of urban vs. regional planning and management, especially when dealing with 3D under- ground/aboveground infrastructures. Despite the fact that there has been consistent research within geoinformation science (GISc) on the concept of 3D for more than a decade now, several potentially involved parties are still reluctant to invest in 3D data, 3D techniques and applications. As a consequence, large administration processes re- lating to urban/ rural planning often run up financial losses simply because generic geoinformation is not part of the process (Stoter, 2011; Stoter et al, 2012).
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| 4. |
- Dimopoulou, Efi, et al.
(författare)
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3 D нэгж талбарын анхны бүртгэлүүд (Initial Registration of 3D Parcelels)
- 2024
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Ingår i: 3DКАДАСТРЫН ШИЛДЭГ ТУРШЛАГУУД (Best Practices 3D Cadastres). - : International Federation of Surveyors (FIG). - 9788792853646 ; , s. 67-94
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Гурван хэмжээст (3 D үл хөдлөх хөрөнгийн талаарх ойлголт, үзэл баримтлалууд 90 ээд онысүүл үеэс эхлэн газар зохион байгуулалтын баримт бичиг болон судалгааны бүтээлүүдэдтусах болсон билээ. Өнөө цагт бид 3 D кадастрын талаар хийгдсэн судалгаа, өргөн цархүрээтэй ойлголт, шилд эг туршлагуудыг олон ном, судалгааны бүтээлүүдээс харж болно.Хэдий тийм боловч ихэнх улс орнуудад 3 D үл хөдлөх хөрөнгийн эрх зүйн зохицуулалтуудыгнарийвчлан тодорхойлж 3 D кадастрын системийг эрхлэх асуудал одоо хүртэл нарийншийдэгдэ эгүй, судлагдаагүй хэвээр байна.Энэ бүлэгт Европ, Хойд болон Латин Америк, Ойрх Дорнод, Австралийн нийт 15 өөр эрхзүйн орчин дахь 3 D үл хөдлөх хөрөнгийн үзэл баримтлалыг зохиогчдын өөрсдийнх ньүндэсний туршлагад тулгуурлан харьцуулан авч үзсэн болно. Түүнчлэн Герман, Франц,Скандинав з эрэг өөр өөр ялгаатай иргэний эрх зүйн орчин дэх 3 D кадастрын системийнжишээг авч үзсэн нь эдгээр улстай ижил төрлийн эрх зүйн систем хөгжсөн бусад орнуудад3D кадастрын системийг нэвтрүүлэхэд тус нэмэр болох буй заа. Гэхдээ эдгээр жишээ, сайнтуршлагууд нь 3 D кадастрын системийг нэвтрүүлэх, хэрэгжүүлэх гэх мэт өөр өөр үе шатандявж байгааг анхаарна биз ээ. Энэ нь 3 D үл хөдлөх хөрөнгийн үзэл баримтлал, 3 D кадастрынсистемийг нэвтрүүлэхэд тулгамдаж буй асуудлуудыг тодорхойлоход хувь нэмэр оруулахынзэрэгцээ тухайн эрх зүйн орчинд хараахан бий болоогүй байгаа бэрхшээл, асуудлуудыг
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| 5. |
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| 6. |
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| 7. |
- Pennells, Lisa, et al.
(författare)
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Equalization of four cardiovascular risk algorithms after systematic recalibration : individual-participant meta-analysis of 86 prospective studies
- 2019
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Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 40:7, s. 621-
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Tidskriftsartikel (refereegranskat)abstract
- Aims: There is debate about the optimum algorithm for cardiovascular disease (CVD) risk estimation. We conducted head-to-head comparisons of four algorithms recommended by primary prevention guidelines, before and after ‘recalibration’, a method that adapts risk algorithms to take account of differences in the risk characteristics of the populations being studied.Methods and results: Using individual-participant data on 360 737 participants without CVD at baseline in 86 prospective studies from 22 countries, we compared the Framingham risk score (FRS), Systematic COronary Risk Evaluation (SCORE), pooled cohort equations (PCE), and Reynolds risk score (RRS). We calculated measures of risk discrimination and calibration, and modelled clinical implications of initiating statin therapy in people judged to be at ‘high’ 10 year CVD risk. Original risk algorithms were recalibrated using the risk factor profile and CVD incidence of target populations. The four algorithms had similar risk discrimination. Before recalibration, FRS, SCORE, and PCE over-predicted CVD risk on average by 10%, 52%, and 41%, respectively, whereas RRS under-predicted by 10%. Original versions of algorithms classified 29–39% of individuals aged ≥40 years as high risk. By contrast, recalibration reduced this proportion to 22–24% for every algorithm. We estimated that to prevent one CVD event, it would be necessary to initiate statin therapy in 44–51 such individuals using original algorithms, in contrast to 37–39 individuals with recalibrated algorithms.Conclusion: Before recalibration, the clinical performance of four widely used CVD risk algorithms varied substantially. By contrast, simple recalibration nearly equalized their performance and improved modelled targeting of preventive action to clinical need.
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| 8. |
- Wood, Angela M., et al.
(författare)
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Risk thresholds for alcohol consumption : combined analysis of individual-participant data for 599 912 current drinkers in 83 prospective studies
- 2018
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Ingår i: The Lancet. - : Elsevier. - 0140-6736 .- 1474-547X. ; 391:10129, s. 1513-1523
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Tidskriftsartikel (refereegranskat)abstract
- Background: Low-risk limits recommended for alcohol consumption vary substantially across different national guidelines. To define thresholds associated with lowest risk for all-cause mortality and cardiovascular disease, we studied individual-participant data from 599 912 current drinkers without previous cardiovascular disease.Methods: We did a combined analysis of individual-participant data from three large-scale data sources in 19 high-income countries (the Emerging Risk Factors Collaboration, EPIC-CVD, and the UK Biobank). We characterised dose-response associations and calculated hazard ratios (HRs) per 100 g per week of alcohol (12.5 units per week) across 83 prospective studies, adjusting at least for study or centre, age, sex, smoking, and diabetes. To be eligible for the analysis, participants had to have information recorded about their alcohol consumption amount and status (ie, non-drinker vs current drinker), plus age, sex, history of diabetes and smoking status, at least 1 year of follow-up after baseline, and no baseline history of cardiovascular disease. The main analyses focused on current drinkers, whose baseline alcohol consumption was categorised into eight predefined groups according to the amount in grams consumed per week. We assessed alcohol consumption in relation to all-cause mortality, total cardiovascular disease, and several cardiovascular disease subtypes. We corrected HRs for estimated long-term variability in alcohol consumption using 152 640 serial alcohol assessments obtained some years apart (median interval 5.6 years [5th-95th percentile 1.04-13.5]) from 71 011 participants from 37 studies.Findings: In the 599 912 current drinkers included in the analysis, we recorded 40 310 deaths and 39 018 incident cardiovascular disease events during 5.4 million person-years of follow-up. For all-cause mortality, we recorded a positive and curvilinear association with the level of alcohol consumption, with the minimum mortality risk around or below 100 g per week. Alcohol consumption was roughly linearly associated with a higher risk of stroke (HR per 100 g per week higher consumption 1.14, 95% CI, 1.10-1.17), coronary disease excluding myocardial infarction (1.06, 1.00-1.11), heart failure (1.09, 1.03-1.15), fatal hypertensive disease (1.24, 1.15-1.33); and fatal aortic aneurysm (1.15, 1.03-1.28). By contrast, increased alcohol consumption was loglinearly associated with a lower risk of myocardial infarction (HR 0.94, 0.91-0.97). In comparison to those who reported drinking >0-<= 100 g per week, those who reported drinking >100-<= 200 g per week, >200-<= 350 g per week, or >350 g per week had lower life expectancy at age 40 years of approximately 6 months, 1-2 years, or 4-5 years, respectively.Interpretation: In current drinkers of alcohol in high-income countries, the threshold for lowest risk of all-cause mortality was about 100 g/week. For cardiovascular disease subtypes other than myocardial infarction, there were no clear risk thresholds below which lower alcohol consumption stopped being associated with lower disease risk. These data support limits for alcohol consumption that are lower than those recommended in most current guidelines.
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| 9. |
- Thomas, HS, et al.
(författare)
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- 2019
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swepub:Mat__t
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