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To improve integrated forward/reverse logistics management performance, an appropriate design approach for the forward/reverse logistics network structure and logistics operation schedule is proposed. Synthetically taking into account the location problem and inventory relationships of inter-related nodes, a location-inventory (LI) model is developed. With the help of the model, the following items...
Brand development in a company which functions in some particular economic sector involves a range of specific measures on branding. In particular, the specifity of working with a freight-forwarding company brand is caused by the fact that such companies belong among the following groups of organizations: 1) operating in service-business, 2) operating mainly in B2B-area, 3) operating in transport...
The eco-city concept may in practice too easily turn out into a “green finish” to traditional planning, design and construction practice. How can we ensure that eco-city goals are truly achieved? Do we need traditional governmental tools and requirements such as regulation and enforcement, or would non-regulatory instruments achieve better results? What are examples of both categories? And, last but...
The information and transportation technology are bringing great influence on the development of construction industry. Some fundamental transformations have happened in many aspects of construction industry, such as organization and management, operation procedure, exploiting direction etc. On the condition of the development of technology and theory innovation, the construction industry is both...
To establish an analytic model for carbon emission of building lifecycle, based on life cycle theory and the factors affecting energy consumption in building material transportation(BMT), a calculation method for carbon emission benchmark of BMT was proposed. Furthermore, with the coefficient of carbon emission by transportation means and the coefficient of transportation distance, a calculation model...
In this paper, hierarchical holographic modeling (HHM) is used to identify the risks in transport PPPs under the perspectives of contractual nature of PPPs, institution and cultural environment, and inadequate supervision. Then, we propose that the traditional financial audit approach can not effectively control risk on PPPs, and furthermore, we give an analytic framework of audit supervision for...
Quick and accurate response to the relief demand is vital to an emergency logistics network under disaster spreading. In this paper, we first characterize the disaster spreading process to forecast the time-varying relief demand, by using an epidemic model to analyze the relationships among three groups of affected individuals. Then, a new three-tiered emergency logistics network equilibrium model...
Under the analysis of the present situation of urban roads at home and abroad, the paper reviews the development of tripper guiding information system, traffic-flow distribution model and route choice model. Then it has three multi-attribute decision-making model based on the influence factors of tripper route choice and uncertainty theories, in order to analyze the decision-making process of tripper...
Logistics network design is an important strategic decision. With the development of globalization, more companies outsource their logistics and the third-party logistics companies have become the mainstream. So how to design a reasonable logistics network is important to both manufacturers and 3PL. this article analyses the situation of 3PL and provides a model in logistics network design. Finally,...
In order to forecast the passenger flow demand between central city and Satellite city exactly, a boundary model based on the time and cost is constructed to identify the attractive area of the transportation corridor by analyzing the traffic characteristic of corridor; then, thinking of the differences between urban trip and country trip, a double-deck method is put forward to divide traffic zones...
As environment plays an important role in tourism industry, evaluation of tourism environment has become a key part of tourism research. According to the research results at home and abroad, an evaluation index system of tourism environment was established. On the basis of the index system, fuzzy matter-element model was used in evaluating the good or bad of tourism environment. Taking prefecture-level...
Undesirable risk of hazardous materials transportation can be mitigated by a good routing. most scholars focus on the routing of hazardous materials transportation, but few papers concern with load-varied. The paper illustrates a routing model for the hazardous materials transportation under load-varied network. We use the Traditional Risk model for path risk assess, present a quadratic modeling methodology...
Chinese cities are now at a stage of rapid development and the problems of transportation, environment and land use are increasingly serious. Urban rapid rail transit is wholly a convenient, fast, effective, low-carbon, environment-friendly urban infrastructure system, which providing an effective way for the sustainable development of urban transit and land use. In this paper, the effect mechanism...
According to the randomness and weak economy properties of the Emergency Rescue Routing Problem (ERRP), a chance-constrained programming model is constructed based on a stochastic road network. In this model, we consider there are multiple emergency rescue departments serving for a single emergency site, and the travel times between any two nodes are stochastic variables. As the stochastic ERRP is...
For coal transportation in the shunting and winch system PID tuning is proposed adaptive genetic algorithm for parameter optimization of PID control, the adaptive line genetic algorithm combined with PID control technology, simulation achieved by shunting and winch system in the coal application, simulation results show that the online adaptive genetic algorithm for online optimization of PID parameters...
Competitiveness measurement of ports should consider all internal and external factors. In this paper, we use a number of quantitative measurement indicators to evaluate the actual situation of Shenzhen port. By using factor analysis model, a small number of common factors are extracted to represent the large number of measurement indicators. Furthermore, this paper computes the evaluation scores...
With the development of E-business, reverse logistics become the important problem in enterprises, they can increase service quality and enterprises profit by improving reverse logistics system. In this compete environment, how to build an effective reverse logistics system and make a proper plan for the distribution centre location has become a challenge. This paper proposed a model based on 0-1...
Under the context of port regionalization, introducing externality and compatibility to utility function of the shipper, the linear extensive Hotelling model is established in order to research competitive strategy of port regionalization according to selecting location, charging and service quality of the port. The results shows that: if the two ports in the procession of regionalization implement...
According to economic ideas of Gary s. Becker, this paper builds the decision-making model of rural highway scales from the perspective of farmers under funds constraint, and gets the equilibrium condition of rural highways scales. Then with the figure analysis, the paper discusses impact mechanism of the several factors such as the financial structure of rural highway, rural urbanization, rural economic...
This paper mainly studies the algorisms of detecting and resolving air traffic conflicts. First of all, it generalizes the background and contemporary process of research in this field. Then, it establishes the flight prediction algorism via force directed method and writes the computerized prediction program based on VB.NET to verify the authenticity of this algorism. Finally, in accordance with...
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