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Scenariohantering med parametrisk design i planeringsprocessen

Ekström, Beatrice LU and Andersson, David LU (2023) In Examensarbete i geografisk informationsteknik EXTM05 20231
Surveying (M.Sc.Eng.)
Dept of Physical Geography and Ecosystem Science
Abstract
In line with an increasing population and the ongoing digitization process, there is a need for an effective planning process. In Sweden, there are both national and international goals that concern this. Zoning plans are an important tool for regulating the planning process. In the case of new constructions and densification of cities, it is required that analyzes are carried out to ensure that requirements for noise, daylight and sunlight are met. Currently, analyzes take place at various stages of the planning process. This has consequences when different interests collide and certain requirements may not be met. Therefore, there is a need for effective scenario management where all requirements are taken into account simultaneously in... (More)
In line with an increasing population and the ongoing digitization process, there is a need for an effective planning process. In Sweden, there are both national and international goals that concern this. Zoning plans are an important tool for regulating the planning process. In the case of new constructions and densification of cities, it is required that analyzes are carried out to ensure that requirements for noise, daylight and sunlight are met. Currently, analyzes take place at various stages of the planning process. This has consequences when different interests collide and certain requirements may not be met. Therefore, there is a need for effective scenario management where all requirements are taken into account simultaneously in the process.

In a recent project including Gothenburg City, Malmö City, Stockholm City and Lund University, 3CIM was developed with the aim of creating a common information model for city models. 3CIM's information model is based on CityGML 2.0 in combination with an application domain extension (ADE). The ADE file extends the CityGML 2.0 data structure with 3CIM specific attributes, such as version management and links to different external references. Version management is an important concept in scenario management as it enables the tracking of sequence of events for buildings and objects. Test data from the 3CIM project was used in this work.

In the case study, the area of Lorensborg in Malmö was investigated, where a densification process is undergoing. The study uses scenario management with parametric design to create a work process where new scenarios are created and fed back into a city model stored in a geodatabase. A total of three scenarios are created in CityEngine, of which one scenario follows a zoned area within Lorensborg and two scenarios are based on different forms of building typologies. The different scenarios are assigned a status attribute to facilitate version management in the city model. The scenarios in the database are also selected and analyzed from a solar radiation perspective in QGIS-UMEP. This process required a digital surface model (DSM) and thus required some conversions with FME. The analysis showed that buildings facing south and with a slightly sloping roof are most suitable for placement of solar panels.

The results from the case study show that the process of scenario management and parametric design is currently feasible, but it requires a lot of extra steps with conversions between different formats. An example of this is that FME scripts are required to, for example, convert ESRI Geodatabase format to CityGML 2.0. In the future, it is desirable to have integrated analysis tools directly in the database as well as extended support for more formats to reduce the number of conversions in the scenario management process. (Less)
Abstract (Swedish)
I takt med en ökande befolkningsmängd och den pågående digitaliseringsprocessen, finns det ett behov av en effektiv planeringsprocess. I Sverige finns det både nationella och internationella mål som berör detta. Detaljplaner är ett viktigt verktyg för att reglera planeringsprocessen. Vid nybyggnationer och förtätningar av städer krävs det att analyser utförs för att säkerställa att krav på buller, dags- och solljus uppfylls. I dagsläget sker analyser i olika skeden av planeringsprocessen. Detta medför konsekvenser när olika intressen krockar och vissa krav kanske inte uppfylls. Det finns ett behov av effektiv scenariohantering där alla krav tas hänsyn till samtidigt i processen.

I ett nyligen genomfört projekt mellan Göteborgs Stad,... (More)
I takt med en ökande befolkningsmängd och den pågående digitaliseringsprocessen, finns det ett behov av en effektiv planeringsprocess. I Sverige finns det både nationella och internationella mål som berör detta. Detaljplaner är ett viktigt verktyg för att reglera planeringsprocessen. Vid nybyggnationer och förtätningar av städer krävs det att analyser utförs för att säkerställa att krav på buller, dags- och solljus uppfylls. I dagsläget sker analyser i olika skeden av planeringsprocessen. Detta medför konsekvenser när olika intressen krockar och vissa krav kanske inte uppfylls. Det finns ett behov av effektiv scenariohantering där alla krav tas hänsyn till samtidigt i processen.

I ett nyligen genomfört projekt mellan Göteborgs Stad, Malmö Stad, Stockholm Stad och Lunds Universitet utvecklades 3CIM med syftet att skapa en gemensam informationsmodell för stadsmodeller. 3CIM:s informationsmodell är baserad på CityGML 2.0 i kombination med en application domain extension (ADE). ADE-filen förlänger CityGML 2.0 datastrukturen med 3CIM specifika attribut, såsom versionshantering och länkar till olika verksamhetssystem. Versionshantering är ett viktigt koncept inom scenariohantering då det möjliggör händelseförlopp för byggnader och objekt. Testdata från 3CIM-projektet användes i detta arbete.

I fallstudien undersöktes området Lorensborg i Malmö där en förtätningsprocess pågår. Studien använder scenariohantering med parametrisk design för att skapa en arbetsprocess där nya scenarier skapas och kan återföras till en stadsmodell som lagras i en geodatabas. Totalt skapas tre scenarier i CityEngine, varav ett scenario följer ett detaljplanelagt område inom Lorensborg och två scenarier baseras på olika former av byggnadstypologier. De olika scenarierna tilldelas ett statusattribut för att underlätta versionshantering i stadsmodellen.

Scenarierna i databasen plockas även ut och analyseras ur ett solinstrålningsperspektiv i QGIS-UMEP. Denna process krävde en digital ytmodell (DSM) och således krävdes en del konverteringar med FME. Analysen visade att byggnader i söderläge och svag lutning i denna riktning för taket är bäst lämpad för placering av solceller.

Resultatet från fallstudien visar att processen med scenariohantering och parametrisk design är genomförbar i dagsläget men det kräver en hel del extra steg med konverteringar mellan olika format. Ett exempel på detta är att FME-skript krävs för att exempelvis konvertera ESRI Geodatabase-format till CityGML 2.0-format . I framtiden är det önskvärt med integrerade analysverktyg direkt i databasen samt utökat stöd för fler format för att minska antal konverteringar i scenariohanteringsprocessen. (Less)
Please use this url to cite or link to this publication:
author
Ekström, Beatrice LU and Andersson, David LU
supervisor
organization
course
EXTM05 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Naturgeografi och ekosystemvetenskap, parametrisk design, scenariohantering, stadsmodell, planeringsprocessen, solinstrålningsanalys, 3CIM
publication/series
Examensarbete i geografisk informationsteknik
report number
36
language
Swedish
id
9129009
date added to LUP
2023-06-22 13:01:07
date last changed
2023-06-22 13:01:07
@misc{9129009,
  abstract     = {{In line with an increasing population and the ongoing digitization process, there is a need for an effective planning process. In Sweden, there are both national and international goals that concern this. Zoning plans are an important tool for regulating the planning process. In the case of new constructions and densification of cities, it is required that analyzes are carried out to ensure that requirements for noise, daylight and sunlight are met. Currently, analyzes take place at various stages of the planning process. This has consequences when different interests collide and certain requirements may not be met. Therefore, there is a need for effective scenario management where all requirements are taken into account simultaneously in the process.

In a recent project including Gothenburg City, Malmö City, Stockholm City and Lund University, 3CIM was developed with the aim of creating a common information model for city models. 3CIM's information model is based on CityGML 2.0 in combination with an application domain extension (ADE). The ADE file extends the CityGML 2.0 data structure with 3CIM specific attributes, such as version management and links to different external references. Version management is an important concept in scenario management as it enables the tracking of sequence of events for buildings and objects. Test data from the 3CIM project was used in this work.

In the case study, the area of Lorensborg in Malmö was investigated, where a densification process is undergoing. The study uses scenario management with parametric design to create a work process where new scenarios are created and fed back into a city model stored in a geodatabase. A total of three scenarios are created in CityEngine, of which one scenario follows a zoned area within Lorensborg and two scenarios are based on different forms of building typologies. The different scenarios are assigned a status attribute to facilitate version management in the city model. The scenarios in the database are also selected and analyzed from a solar radiation perspective in QGIS-UMEP. This process required a digital surface model (DSM) and thus required some conversions with FME. The analysis showed that buildings facing south and with a slightly sloping roof are most suitable for placement of solar panels.

The results from the case study show that the process of scenario management and parametric design is currently feasible, but it requires a lot of extra steps with conversions between different formats. An example of this is that FME scripts are required to, for example, convert ESRI Geodatabase format to CityGML 2.0. In the future, it is desirable to have integrated analysis tools directly in the database as well as extended support for more formats to reduce the number of conversions in the scenario management process.}},
  author       = {{Ekström, Beatrice and Andersson, David}},
  language     = {{swe}},
  note         = {{Student Paper}},
  series       = {{Examensarbete i geografisk informationsteknik}},
  title        = {{Scenariohantering med parametrisk design i planeringsprocessen}},
  year         = {{2023}},
}