Is Complexity Better? Assessing Accessibility Measures That Account for Daily Fluctuations in Transit and Jobs Availability

Accessibility to jobs by transit is increasingly incorporated into transportation and land-use planning objectives, as it is proven to be a relevant indicator for assessing land-use and transport performance. With a rise in time-sensitive accessibility measures, choosing the appropriate measure is increasingly challenging for engineers, planners and policy-makers. This research presents a comparative analysis of three accessibility measures , two of which are time-sensitive. Relative accessibility measures are generated for five time periods based on a) constant transit service and number of jobs (constant); b) variable transit service and constant number of jobs (static) and c) variable transit service and variable number of jobs available (dynamic). The measures are first assessed by incorporating them into a transit mode share model. Interestingly, findings show that all three measures behaved similarly in the three regression models. Furthermore, all accessibility measures are found to be highly correlated. The study suggests that the most commonly used accessibility measure (constant measure at 8 am) is representative of the relative accessibility (static or dynamic) over the course of the day and is thus appropriate and meaningful for policy-makers, engineers and planners, namely with regards to social equity.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ADD30 Standing Committee on Transportation and Land Development.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Boisjoly, Geneviève
  • El-Geneidy, Ahmed
• Conference:
  • Transportation Research Board 95th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2016-1-10 to 2016-1-14
• Date: 2016

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Maps; References; Tables;
• Pagination: 17p
• Monograph Title: TRB 95th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Accessibility; Evaluation and assessment; Households; Jobs; Modal split; Public transit; Regression analysis; Time periods; Travel time
• Geographic Terms: Greater Toronto and Hamilton Area (GTHA)
• Subject Areas: Planning and Forecasting; Public Transportation; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01590145
• Record Type: Publication
• Report/Paper Numbers: 16-1492
• Files: TRIS, TRB, ATRI
• Created Date: Feb 11 2016 3:38PM