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MPC Research Reports
Filter by Author28 report(s) found for Denver Tolliver Transportation agencies use a variety of methods to evaluate the condition of pavements and the characteristics of their use. Methods range from in-pavement sensors to ride quality characterizations that require specially instrumented probe vehicles. However, the extensive labor, specialized training... North Dakota currently designs roads based on the AASHTO Design Guide procedure, which is based on the empirical findings of the AASHTO Road Test of the late 1950s. However, limitations of the current empirical approach have prompted AASHTO to move toward the new mechanistically based pavement design... The purpose of this study is to provide information about railroad fuel efficiency that may be useful in evaluating transportation energy policies and assessing the sustainability of potential projects. The specific objectives are to (1) develop railroad energy efficiency models that describe differences... In this paper, elevator trip generation equations are estimated from detailed facility, land-use, and highway traffic data in North Dakota. A trip attraction equation is used to explain the effects of elevator storage capacity and side track capacity on elevator throughput. Elevators are classified on... The study demonstrated that short lines could achieve greater cost savings if they were to increase their density (revenue ton miles per mile) and their size (mile of road). Size is an important criterion that a short line must examine when evaluating the purchase of a new section of track. However... In an attempt to provide some of the information that will enable North Dakota firms and policymakers to make better decisions, this project addressed four transportation issues, which are critical to the future of the state's agricultural sector: (1) the impact of 110-car shuttle trains on the marketing... North Dakota's grain producers rely on an efficient rail system to move their products to export and domestic markets. A recent shift to larger grain hopper cars may threaten the viability of the state's light-density branch line network. This study simulates the impacts of handling larger rail cars... The 100+ car rates are a recent innovation in rail grain pricing. Although the rates have been available via contract, a public offering last fall initiated much of the current interest in these larger units. The objective of this study is to provide an informational base that hard red spring wheat market... There has been controversy over the relative benefits of coordinating rural transit systems. Initially, it was expected that coordinated systems would experience lower costs and/or offer increased services. Some regional studies have indicated that coordinated systems do not experience decreased costs... This study examines the impacts of the Clean Air Act Amendments of 1990 (CAAA90) on coal production and coal flows. The CAAA90 take a markedly different approach to pollution control from stationary sources when compared to past 'clean air' legislation. The new approach to limiting sulfur dioxide emissions... |
