15. Supplementary Notes Supported by general revenues from the State of Texas. 16. Abstract Since transportation infrastructure projects have a lifetime of many decades, project developers must consider not only the current demand for the project but also the future demand. Future demand is of course uncertain and should be treated as such during project design. Previous research for Southwest ...

in this paper, we develop a freight transportation model for railway network considering hazmat transportation issue. in the transportation system considered, different customers can request for carrying hazmat and non- hazmat boxes. it is assumed that the sequence of the trains in the network is known. the objective is assigning the non-hazmat boxes and hazmat boxes to wagons of the trains so ...

This paper deals with the problem of computing, in an online fashion, a maximum benefit multi-commodity flow (ONMCF), where the flow demands may be bigger than the edge capacities of the network. We present an online, deterministic, centralized, all-or-nothing, bi-criteria algorithm. The competitive ratio of the algorithm is constant, and the algorithm augments the capacities by at most a logar...

a r t i c l e i n f o Keywords: Ecological network analysis Extended exergy analysis Structure Utility Urban ecological economic system Analyzing the structure and functioning of the urban system revealed ways to optimize its structure by adjusting the relationships among compartments, thereby demonstrating how ecological network analysis can be used in urban system research. Based on the accou...

In the well-known Braess paradox [D. Braess, Unternehmenforschung 12, 258 (1968)], the addition of a new route in a specific congested transportation network made all the travelers worse off in terms of their individual travel cost (time). In this paper, we consider the hypothesis that, in congested networks, the Braess Paradox may “disappear” under higher demands, and we prove this hypothesis ...

Beginning in mid-2021, U.S. food prices surged at the fastest pace decades, due to pandemic-related supply chain and labor shortages, rising transportation costs wages, commodity fertilizer shocks resulting from Russia's invasion of Ukraine, perhaps demand-side effects recent monetary fiscal stimulus. We decompose path domestic into explanatory factors, grouped by or demand orientation. Our fin...

proposing a robust designed facility location is one of the most effective ways to hedge against unexpected disruptions and failures in a transportation network system. this paper considers the combined facility location/network design problem with regard to transportation link disruptions and develops a mixed integer linear programming formulation to model it. with respect to the probability o...

We propose a new approach to forecasting the demand for a commodity in which the commodity supplier asks each consumer to forecast its own demand for the commodity and in return gives a monetary reward that is proportional to the accuracy of the forecast. Such an approach might be applicable when consumer demand for a perishable commodity is uncertain and forecast error leads to waste for produ...

Energy demands of countries are changing rapidly in parallel with development, industrialization, urbanization, the spread technology, prosperity, and population growth. use transport sector last few years, Turkey has shown a significant increase. Therefore, energy management predicting critically important to environmental safety upcoming economic well-being. In recent studies determine demand...