du.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
An Evaluation of the Reliability of GPS-Based Transportation Data
Dalarna University, School of Technology and Business Studies, Statistics.ORCID iD: 0000-0002-7512-5321
Dalarna University, School of Technology and Business Studies, Statistics.ORCID iD: 0000-0003-2317-9157
Dalarna University, School of Technology and Business Studies, Information Systems. Dalarna University, School of Technology and Business Studies, Human Geography.ORCID iD: 0000-0003-4871-833X
2014 (English)Report (Other academic)
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

Place, publisher, year, edition, pages
Borlänge: Högskolan Dalarna, 2014.
Series
Working papers in transport, tourism, information technology and microdata analysis, ISSN 1650-5581 ; 2014:17
Keyword [en]
Transportation, GPS tracking, Reliability, Road network
National Category
Social Sciences Economic Geography Human Geography
Research subject
Complex Systems – Microdata Analysis, General Microdata Analysis - transports
Identifiers
URN: urn:nbn:se:du-24684OAI: oai:DiVA.org:du-24684DiVA: diva2:1086901
Note

New updated version of paper.

Available from: 2017-04-04 Created: 2017-04-04 Last updated: 2017-04-05Bibliographically approved
In thesis
1. Government vs Market in Sustainable Residential Development?: Microdata analysis of car travel, CO2 emission and residence location
Open this publication in new window or tab >>Government vs Market in Sustainable Residential Development?: Microdata analysis of car travel, CO2 emission and residence location
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
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.

Place, publisher, year, edition, pages
Borlänge: Högskolan Dalarna, 2017. 140 p.
Series
Dalarna Doctoral Dissertations, 6
National Category
Social Sciences
Research subject
Complex Systems – Microdata Analysis, General Microdata Analysis - transports
Identifiers
urn:nbn:se:du-24685 (URN)978-91-85941-84-1 (ISBN)
Public defence
2017-04-28, Clas Ohlson, Studenternas Hus Tenoren, Röda vägen, Borlänge, 13:00 (English)
Opponent
Supervisors
Available from: 2017-04-05 Created: 2017-04-04 Last updated: 2017-04-05Bibliographically approved

Open Access in DiVA

The full text will be freely available from 2017-12-31 16:27
Available from 2017-12-31 16:27

Search in DiVA

By author/editor
Zhao, XiaoyunCarling, KennethHåkansson, Johan
By organisation
StatisticsInformation SystemsHuman Geography
Social SciencesEconomic GeographyHuman Geography

Search outside of DiVA

GoogleGoogle Scholar

Total: 12 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf