IMPROVEMENT OF METROLINER TELEPHONE CHANNEL CAPACITY AND MODELING OF TELEPHONE CHANNEL DEMANDS

The channel capacity of the present Metroliner telephone system is analyzed and methods are proposed to increase that capacity without increasing the overall bandwidth. To determine the number of channels required, calculations have been carried out using two available mathematical models: the Erlang Model and the Waiting Model. Three criteria have been used: (1) the probability that no channel is available; (2) the mean waiting time; and (3) the probability of having to wait at least t minutes.

• Corporate Authors:

  Volpe National Transportation Systems Center

  Cambridge, MA  United States  02142

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Chin, G Y
  • Eaves Jr, R E
  • Kodis, R D
  • Yoh, P
• Publication Date: 1972-3

Language

• English

Media Info

• Pagination: 42 p.

Subject/Index Terms

• TRT Terms: Mathematical models; Mobile telephones; Railroad trains; Waiting time
• Identifier Terms: Metroliner (Express train)
• Uncontrolled Terms: Telephone channel capacity
• Subject Areas: Operations and Traffic Management; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00941406
• Record Type: Publication
• Report/Paper Numbers: DOT-TSC-FRA-72-2,, Technical Report
• Contract Numbers: RR204/R2305
• Files: TRIS, USDOT
• Created Date: Apr 22 2003 12:00AM