INTERACTIVE MODEL FOR ESTIMATING EFFECTS OF HOUSING POLICIES ON TRANSIT RIDERSHIP

This paper reports on computer graphics developed as part of an interactive computer model designed to assess the impact of housing policies on transit ridership in urban transit corridors. A set of programs was written in APL to implement the model in an interactive computer environment, with computer graphics used for both input and model output. A mode-split model that uses U.S. Bureau of the Census data predicts ridership for the transit line, based on discrete combinations of mode and access mode including walk-and-ride, park-and-ride, kiss-and-ride, and feeder bus. The program permits the analyst to input alternative residential patterns, with respect to location and density, in the transit corridor and to evaluate the effects on transit ridership by comparing various alternative housing policies. Computer graphics are used at two levels. First, as an input mode, graphics allow the planner to create new transit route alignments and station locations by using a screen cursor. The program then models station choice from the zones, on the basis of a number of variables, including driving or walking times to stations, transit fares, line-haul travel times, etc. As an output mode, graphics are used to display socioeconomic data, mode-split results, or any algebraic combinations of input or output data. Different types of graphic displays are used for data presentation at the zone level or station level. Throughout the development of the graphics, special attention was given to the readability of the output. The paper reflects the general effort to produce more visually attractive and commonly understandable outputs. Included in the paper are a description of the program design and organization, examples of graphic output, and a discussion of the ability of the model to provide useful output to policymakers.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1981/835/835-009.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=INTERACTIVE+MODEL+FOR+ESTIMATING+EFFECTS+OF+HOUSING+POLICIES+ON+TRANSIT+RIDERSHIP&author=J.+Lutin&author=B.+Markowicz&publication_year=1981
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Computer Graphics and Interactive Graphics. 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:
  • Lutin, Jerome
  • Markowicz, Bernard P
• Conference:
  • 60th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1981-1-12 to 1981-1-16
• Publication Date: 1981

Media Info

• Media Type: Print
• Features: Figures; Maps;
• Pagination: pp 47-52
• Monograph Title: Transportation system analysis
• Serial:
  • Transportation Research Record
  • Issue Number: 835
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Alternatives analysis; City planning; Computer graphics; Computer programs; Estimating; Impact studies; Modal split; Residential areas; Ridership; Routing; Urban transportation; User interfaces (Computer science)
• Uncontrolled Terms: Interactive computing
• Subject Areas: Administration and Management; Highways; Planning and Forecasting; Public Transportation; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00349765
• Record Type: Publication
• ISBN: 0309033128
• Files: TRIS, TRB
• Created Date: Jun 30 1982 12:00AM