نتایج جستجو برای: transportation model
تعداد نتایج: 2147548 فیلتر نتایج به سال:
land use planning is the main core of urban planning and one of the main components of an urban system. this element has close relation with transportation system of the city, so if their interaction becomes insufficient, deterioration and chaos would have an adverse impact on the urban system and would cause serious environmental issues. the integrated land use-transportation models seem to b...
D. M. Levinson, Institute of Transportation Studies, University of California at Berkeley, Berkeley, Calif. 94720. Y. Huang, Transportation Planning Division, Maryland National Capital Park and Planning Commission, 8787 Georgia Avenue, Silver Spring, Md. 20910. A transportation planning model that integrates regional and local-area forecasting approaches is developed and applied. Although regio...
Fuel consumption is one of the main contemporary issues in transportation sector. Because the fuel is subsidized in Iran, reducing fuel consumption has benefits for both the government and private sector. One of the most important areas of fuel consumption is the industry scope. In this area, reducing fuel consumption has important benefits such as reducing the total costs of finished products ...
in this paper, a supplier-retailer transportation system is investigated as a two-echelon environment. there is a single location in each echelon; the unique supplier at the first echelon has to replenish the retailer's warehouse at the second echelon. by the way, the shortage situation should be avoided. for this situation, a model is provided based on the traditional eoq model. the inven...
The main purpose of this study is to estimate the maritime transportation elasticities of the environmental pollution and economic growth in Iran within the short-run and long-run to find out the relationships among maritime transportation, environmental pollution and economic growth. The lagged endogenous model (a dynamic log-linear model that we used) is estimated using two distinctive ...
one main group of a transportation network is a discrete hub covering problem that seeks to minimize the total transportation cost. this paper presents a multi-product and multi-mode hub covering model, in which the transportation time depends on travelling mode between each pair of hubs. indeed, the nature of products is considered different and hub capacity constraint is also applied. due to ...
increasing urban network has both positive (accessibility) and negative (air pollution) impacts. in this research air quality is chosen as key elements with respect to their critical roles in quality of life and urban health. the overall objective of this study is to develop a mathematical model to plan appropriate locations for residential land uses and urban transportation network development...
the control of car following is essential due to its safety and its operational efficiency. for this purpose, this paper builds a model of car following behavior based on armax structure from a real traffic dataset and design a model predictive control (mpc) system. based on the relative distance and relative acceleration of each instant, the mpc predicts the future behavior of the leader vehic...
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