00371744

Component

http://onlinepubs.trb.org...s/trr/1982/875/875-011.pdf

https://scholar.google.co...eyer&publication_year=1982

The unit-train concept has altered the rural pricing structure for grains and consequently encouraged longer-distance truck transportation in larger-sized lots by producers and rural elevators over the 1975-1980 period. Annual data on grain production, livestock consumption, and storage capacity were obtained from Nebraska Agricultural Statistics. Primary data on truck receipts were collected by interview with the managers of 86 unit-train shippers across the state. A computer model was developed to calculate the total ton miles of producer transport of grains within the elevator's trade area for each district as well as ton miles of interelevator transfer. Nebraska producers in 1980 transported 71 percent more ton miles delivering grain to commercial elevators than in 1975. Combined with the growth in interelevator grain transfers by truck, the annual ton miles of rural truck transport of grains in 1980 was nearly double the 1975 level. The investment required to maintain and upgrade the rural road system is not independent of changes in other sectors of the total U.S. transportation system. The increased use of unit-trains has precipitated an increase in the ton miles of grain hauled over low-volume roads as well as an increase in the weight per axle and a subsequent increase in stress on rural roads and ridges. (Author)

Publication of this paper sponsored by Committee on Low-Volume Roads. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

00380021

HS-035 179

pp 60-64

1982

Transportation Research Record

0309034620

Print

Figures (1) ; Maps; References (3) ; Tables (2)

Axle load force; Freight transportation; Grain; Impact studies; Low volume roads; Rural highways; Statistics; Stresses; Ton miles; Trucking

Nebraska

Data and Information Technology; Freight Transportation; Highways; Motor Carriers; Pavements; I23: Properties of Road Surfaces

HSL, TRIS, TRB

Apr 29 1983 12:00AM

• ANALYZING TRANSPORTATION NETWORKS FOR RURAL DEVELOPMENT
• CASE FOR REMOVING BRIDGE OR CULVERT RAILS ON LOW-VOLUME RURAL ROADS
• COST RESPONSIBILITY FOR LOW-VOLUME ROADS IN VIRGINIA
• DEVELOPMENT OF A COMPUTERIZED TECHNIQUE TO IDENTIFY EFFECTIVE FOREST ROADWAY NETWORKS
• DISCUSSION OF AGGREGATE PROPERTIES FOR UNTREATED ROAD SURFACES
• EVALUATION OF EXISTING AGGREGATE ROADS TO DETERMINE SUITABILITY FOR RESURFACING
• FABRIC-REINFORCED AGGREGATE ROADS--OVERVIEW
• IMPROVED PAVEMENT MANAGEMENT SYSTEM FOR LOW-VOLUME ROADS
• OPTIMIZATION OF ROADWAY STRUCTURAL DESIGN AND MAINTENANCE STRATEGIES WITH SPECIAL REFERENCE TO DEVELOPING COUNTRIES
• PAVEMENT DESIGN FOR A 3.5-MILLION-POUND VEHICLE
• PAVEMENT EVALUATION AND UPGRADING OF LOW-COST ROADS
• PERFORMANCE OF VARIOUS THICKNESSES OF PCC PAVEMENT
• SURFACINGS FOR LOW-VOLUME ROADS IN THE THIRD WORLD