du.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
An Evaluation of the Reliability of GPS-Based Transportation Data
Högskolan Dalarna, Akademin Industri och samhälle, Statistik.ORCID-id: 0000-0002-7512-5321
Högskolan Dalarna, Akademin Industri och samhälle, Statistik.ORCID-id: 0000-0003-2317-9157
Högskolan Dalarna, Akademin Industri och samhälle, Mikrodataanalys.ORCID-id: 0000-0003-4871-833X
2014 (Engelska)Rapport (Övrigt vetenskapligt)
Abstract [en]

GPS-based data are becoming a cornerstone for real-time transportation applications. Tracking data of vehicles from GPS receivers are however susceptible to measurement errors. The assessment of the reliability of data from GPS receiver is a neglected issue, especially in a real road network setting and in the phase after data transfer but before information identification. An evaluation method is outlined and carried out by conducting a randomized experiment. We assess the reliability of GPS-based transportation data on geographical position, speed, and elevation from three varied receivers GlobalSat BT-338X, Magellan SporTrak Pro and smart phone for three transportation modes: bicycle, car, and bus. The positional error ranging from 0158 meters, and 74% to 100% with an error within 5 meters depending on the transportation mode and route, there is also a non-negligible risk for aberrant positioning. Speed is slightly underestimated or overestimated with errors around 5km/h except for SporTrak Pro which had an error

Ort, förlag, år, upplaga, sidor
Borlänge: Högskolan Dalarna, 2014.
Serie
Working papers in transport, tourism, information technology and microdata analysis, ISSN 1650-5581 ; 2014:17
Nyckelord [en]
Transportation, GPS tracking, Reliability, Road network
Nationell ämneskategori
Ekonomisk geografi Kulturgeografi
Forskningsämne
Komplexa system - mikrodataanalys, Allmänt Mikrodataaanalys - transporter
Identifikatorer
URN: urn:nbn:se:du-24684OAI: oai:DiVA.org:du-24684DiVA, id: diva2:1086901
Anmärkning

New updated version of paper.

Tillgänglig från: 2017-04-04 Skapad: 2017-04-04 Senast uppdaterad: 2018-12-14Bibliografiskt granskad
Ingår i avhandling
1. Government vs Market in Sustainable Residential Development?: Microdata analysis of car travel, CO2 emission and residence location
Öppna denna publikation i ny flik eller fönster >>Government vs Market in Sustainable Residential Development?: Microdata analysis of car travel, CO2 emission and residence location
2017 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Increasing car usage and travel demands between residential locations and destinations in order to fulfill the various needs of residents is a primary cause of CO2 emissions. To win the battle against climate change, a better understanding of the question relating to which urban residential form may most effectively mitigate the CO2 emissions is the key pathway.

This dissertation is concerned with the above problem and it mainly considers three objectives in providing insights on answering the question. The first objective is to comprehensively and microscopically understand intra-urban car travel behavior. The second objective is to estimate the induced CO2 emissions from daily intra-urban car travel and to ex-ante evaluate residential plans. The third objective is to assess whether the governmental sustainable residential development objective is aligned with the objectives of the estate market actors. To explore the research questions related to the objectives, a microdata analysis process (data collection, data assessment and transformation, data storage, data analysis and decision-making) is applied and is found essential in gaining access to key variables in exploring the answer of a preferable urban form. The dissertation offers many new solutions to various technical aspects through a microdata analysis process.

The primary contribution of this dissertation is that it outlines an operational model that comprehensively integrates the investors’ investment strategy, the residents’ choice behavior, and the governmental sustainability objective in the interest of making an ex-ante assessment of residential plans. This ex-ante assessment provides decision-support in sustainable residential development at foremost local level.

The first finding from the implementation of the model on the case study is that the market actors’ objectives are, in general, aligned with the government’s sustainable residential development objective. The second finding indicates that re-shaping the urban form into a compact city is preferable in mitigating CO2 emissions, in spite of the fact that the case city is of a polycentric urban form. These findings provide support for those advocating the compact city as the ideal for sustainable residential development, and also provide foresight on settling the answer to the preferred re-shaping of urban forms in climate change.

Ort, förlag, år, upplaga, sidor
Borlänge: Dalarna University, 2017. s. 140
Serie
Dalarna Doctoral Dissertations ; 6
Nationell ämneskategori
Övrig annan samhällsvetenskap
Forskningsämne
Komplexa system - mikrodataanalys, Allmänt Mikrodataaanalys - transporter
Identifikatorer
urn:nbn:se:du-24685 (URN)978-91-85941-84-1 (ISBN)
Disputation
2017-04-28, Clas Ohlson, Studenternas Hus Tenoren, Röda vägen, Borlänge, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2017-04-05 Skapad: 2017-04-04 Senast uppdaterad: 2020-04-08Bibliografiskt granskad

Open Access i DiVA

fulltext(1338 kB)70 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 1338 kBChecksumma SHA-512
ecf940d503e918ccc624f11e3171d90a9562ab6720e4f34949ca86b9f6c91ca7f48da4ee695a8ff31bf101983ff9760ccbe44610713ecd22c02ebbd5e9cbfd80
Typ fulltextMimetyp application/pdf

Personposter BETA

Zhao, XiaoyunCarling, KennethHåkansson, Johan

Sök vidare i DiVA

Av författaren/redaktören
Zhao, XiaoyunCarling, KennethHåkansson, Johan
Av organisationen
StatistikMikrodataanalys
Ekonomisk geografiKulturgeografi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 70 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 174 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf