Like other transit agencies, the Southern California Rapid Transit District schedules buses using a peak point constraint on crowding. As a way of clarifying implicit scheduling goals of maximizing seat use while minimizing crowding, two indicators were studied, load factor and standee factor. Riding checks carried out on many lines over an extended period allowed computation of 24-hour averages of these indicators for three types of lines: urban local, suburban local, and express. Weighted linear regressions produced a relation between standee factor and load factor for each service type. Elasticities were estimated to give predictions of increases in crowding due to ridership growth. A scattergram of standee factor versus load factor can be used as a diagnostic tool for scheduling management to indicate which lines should be given attention and improvement or deterioration following schedule revisions. The loci of hour-by-hour values of standee factor and load factor give both manager and scheduler a quick overview of the reasonableness of a schedule. Periods of schedule deficiency are readily apparent.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 72-76
  • Monograph Title: Advances in bus service planning practices
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00454959
  • Record Type: Publication
  • ISBN: 0309038235
  • Files: TRIS, TRB
  • Created Date: Jul 31 1986 12:00AM