QUEUING MODELS FOR MULTIPLE CHAMBER LOCKS

Several models for predicting mean waiting time of river traffic at a multiple chamber lock were developed and tested. Mean waiting time predicted by the M/G/1 model differed significantly from observed times. Analysis of possible causes of failure of this model suggested a limited queue length M/G/1 model for one chamber, from which more accurate predictions were derived. For the two chamber system, an M/G/1 model with random batch size was developed. This model yields a lower bound for mean waiting time. These last two models can be used to predict system performance under various operating conditions. (Author)

• Supplemental Notes:
  • Published in Transportation Science, V10, N4, November 1976 and is also available from ESL.
• Corporate Authors:

  University of California, Berkeley

  Operations Research Center, 3115 Etcheverry Hall
  Berkeley, CA  United States  94720
• Authors:
  • GLASSEY, C R
  • Ross, S M
• Publication Date: 1976-9

Media Info

• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Failure; Inland waterways; Inland waterways traffic; Locks (Waterways); Mathematical models; Queuing theory; Rivers; Ship pilotage; Shipping; Simulation; Traffic delays; Water traffic
• Uncontrolled Terms: Models
• Geographic Terms: Mississippi River
• Old TRIS Terms: Multiple operation; Queueing theory; River navigation; Simulated lock operation
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00145744
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: ORC-76-27 Res. Rpt.
• Contract Numbers: DAAG29-76-G-0042
• Files: TRIS
• Created Date: Jan 16 1977 12:00AM