Should we change the rules for trip identification for GPS travel records?

GPS data processing usually consists of trip identification (TI), mode detection and purpose imputation. Given that most research needs to process millions of data points, it is always debatable what the optimal interval is to record data. In practice, most research uses one second as the interval, whilst some researchers use 3 seconds, 5 seconds, or an even longer interval to record data. Also, it is usually suggested that 120 seconds of dwell time would be a reasonable criterion to identify a stop. However, some activities, such as pickup/drop-off, may have a shorter duration. This paper investigates both issues in depth. This paper also discusses the trade-offs of choosing different options, suggests the relatively better option and the ways to cope with the trade-offs.

• Record URL:
  • http://www.atrf.info/papers/2013/index.aspx
• Authors:
  • Shen, L
  • Stopher, P R
• Conference:
  • Australasian Transport Research Forum (ATRF), 36th, 2013, Brisbane, Queensland, Australia
• Publication Date: 2013-10

Language

• English

Media Info

• Pagination: 11p
• Monograph Title: Transport and the new world city: 36th Australasian Transport Research Forum (ATRF), October 2nd-4th 2013, Brisbane

Subject/Index Terms

• TRT Terms: Accuracy; Behavior; Data collection; Global Positioning System; Time; Transportation modes; Travel; Travel behavior
• ATRI Terms: Accuracy; Data collection; Global positioning system (GPS); Time; Transport mode; Travel behaviour
• ITRD Terms: 1145: Transport mode
• Subject Areas: Safety and Human Factors; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01514684
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Feb 20 2014 10:12AM