TRANSPORT OF SOLID COMMODITIES VIA FREIGHT PIPELINE: TASK REPORT II. INTERCITY TRANSPORTATION OF MANUFACTURED PRODUCTS IN UNIT TRAINS

In evaluating the future of the freight pipeline system it is important to assess possible future changes in the intercity freight systems with which it might compete. One such system is based on the unit train, now in widespread use in the transportation of coal, ore, grain, and other bulk commodities. This paper presents cost and performance (total transit time) estimating models for a general merchandise freight system, the intercity line-haul portion of which is based on conventional locomotives and general service boxcars operating as a unit in continuous service between origin and destination terminals. These terminals, which are modeled on existing highway and air cargo facilities, provide transhipment of freight between the line-haul and local access systems. Local access operations between terminals and ultimate freight origin/destination points are assumed to have cost and service characteristics similar to those of highway common carrier pickup and delivery operations. The analysis is in two parts. First, cost and performance of the line-haul unit train system are estimated as functions of train length and speed. A representative line-haul configuration (100 cars, 45 mph) is then combined with the terminal and access models to estimate total system cost as a function of shipment size and annual volume. Unit costs and equipment characteristics are best estimates of 1974 U.S. rail industry experience.

  • Supplemental Notes:
    • See also RRIS 11 191664; Bulletin 7902. Also available in set of 4 reports, PC E10, PB-292 657-SET.
  • Corporate Authors:

    University of Pennsylvania, Philadelphia

    Department of Civil and Urban Engineering
    Philadelphia, PA  United States  19104

    Research and Special Programs Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • WARNER, J A
  • Publication Date: 1978-12

Media Info

  • Pagination: 53 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00191668
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT/RSPA/DPB-507836 Final Rpt.
  • Contract Numbers: DOT-OS-50119
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jun 13 1979 12:00AM