RIDERSHIP SAMPLING FOR BARRIER-FREE LIGHT RAIL

The challenges and current practice in ridership estimation on light rail lines, particularly barrier-free lines, are reviewed. Two-stage sampling is an efficient plan because of the high level of accuracy demanded and the small number of scheduled trips. The theory of two-stage sampling is reviewed, and modifications are derived for times when the second-stage sample size varies between primary units. Sampling plans for light rail lines in greater Los Angeles and San Jose are offered as examples. Necessary samples sizes are as low as 25 round trips for 10% annual precision at the 95% confidence level, 80 round trips for 5% precision, and 400 round trips for 2% precision.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1993/1402/1402-013.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=RIDERSHIP+SAMPLING+FOR+BARRIER-FREE+LIGHT+RAIL&author=P.+Furth&author=A.+Kumar&publication_year=1993
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1402, Public Transit: Current Research in Planning, Marketing, Operations, and Technology. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Furth, Peter G
  • Kumar, Ashok
• Publication Date: 1993

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 90-97
• Monograph Title: Public transit: current research in planning, marketing, operations, and technology
• Serial:
  • Transportation Research Record
  • Issue Number: 1402
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accuracy; Light rail transit; Precision; Ridership; Statistical sampling
• Uncontrolled Terms: Modifications; Sample size
• Geographic Terms: Los Angeles (California); San Jose (California)
• Old TRIS Terms: Two-stage sampling
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation;

Filing Info

• Accession Number: 00641369
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jan 5 1994 12:00AM