Applied Mechanics and Materials Vols. 505-506

Abstract: Based on the relationship between passenger flow and demand of electric multiple units (EMU), a new methodology to calculate the EMU demand and allocate the EMU is proposed, which can meet the demand of passenger as well as avoid the waste of transport capacity. An offline allocation plan of EMU is designed by analyzing the fluctuation in passenger flow, passenger average haul distance, passenger load factor and so on. Using the methodology, the EMU allocation problem is solved through program, which is used in Beijing-Shanghai High-speed Railway to obtain the EMU allocation plan.

Abstract: Quality life and prosperous district is strongly connected with quality functional road infrastructure. One of the tools that can help is Pavement Management System. Pavement management system used in undermined area must take into account different degradation factors, which affecting disturbances on the roads. It is difficult to choose sufficient technology for its repair. Chosen repair should be from the economical and technological aspect as effective. This article refers to the gaps in the current pavement management system when its use in such affected areas. According to the long-term observation was made classification of roads disturbances and design of their repairs. This contributes significantly to obtain comprehensive knowledge of interactions between soil and road elements.

Abstract: This research is focused on the applicability, in particular contexts, of roundabouts characterized by a non conventional geometry configuration. The methodology is based on the microsimulation approach, validated through a series of surveys on real case studies and traffic conditions. A microsimulation model (VISSIM, PTV), was applied in order to reproduce roundabouts geometry and to define vehicle flow parameters. The research results allow to evaluate roundabouts level of service as a function of geometric features and to establish the limits connected to the employment of noncircular roundabouts in different traffic scenarios.

Abstract: High-speed railway passenger train operation plan is an important basis to ensure the quality of transportation services. With construction and development of the country's high-speed railway, design and evaluation of railway passenger train plan theory need to be improved and perfected. On the basis of reading and studying a large amount of the references, this paper summarizes the domestic and overseas high-speed running railway operation modes, the high speed railway train operation programs design and other aspects. Besides, according to the related problems and shortcomings, this paper illustrates the meanings and necessities of analyzing the high-speed railway passenger train program.

Abstract: Technology Transfer (T²) centres have emerged in many countries all over the world as effective agents and catalyst for improvements in disseminating experiences, technologies, best practices and innovations. There is a generally perceived link between the state of development of a country's transportation systems and the extent of technology usage and availability of technical information in that country. To keep the pace with the new technologies, the transportation sector needs information and knowledge that will enable it to advance their processes, incorporate new products into existing programmes, and increase technical know-how that produces positive change and economic development. This paper intended to discuss the innovative strategies adopted in operating transportation technology transfer centre in Botswana. Strategies adopted to achieve the objective were establishing and maintaining a transportation database and website accessible by transportation engineering professionals; publishing and disseminating quarterly T² newsletter; hosting 6th Africa T² conference; identifying training programs for the stakeholders. In conclusion, the paper highlighted the outcome of operating T² centre to enhance transportation through effective technology transfer operations for economic development in Botswana.

Abstract: Both heavy goods vehicles (HGV) and exiting vehicles can significantly affect the entry capacity of a roundabout. However, their effects have not been taken into account in HCM 2000 model. Recently two studies have been carried out to address this issue: 1) Dahl and Lee (2012) proposed an expectation theory based approach to incorporate the effect of HGVs [; and 2) Qu et al. (2013) derived a new roundabout capacity model by assuming that each exiting vehicle could provide one entry opportunity for waiting vehicles [. In this paper, the two models are integrated using a scenario-based approach to analyse the effects of not only exiting vehicles but also HGVs. A comparative study indicates that HCM 2000 model performs well under low to mid traffic conditions while it underestimates the capacities under high traffic conditions in combination with high proportions of exiting vehicles.

Abstract: Drop and pull transport is an efficient transportation mode. It brings considerable comprehensive economic benefit for companies, improves the transport efficiency and reduces carbon emissions quantity. In order to evaluate the performance comprehensively, the cost-benefit of environmental indicators are added to establish the comprehensive performance evaluation system of drop and pull transport on the basis of traditional financial evaluation index, the performance evaluation model with time value is also established. The comprehensive cost-benefit of drop and pull transport mode and traditional mode are analyzed by NAV and PVI. Accordingly, the result of the case analysis shows that drop and pull transport brings economic and green effects and has guiding significance to develop drop and pull transport.

Abstract: The problem of airport site selection involves many influence factors; it belongs to multi-attribute decision-making problem. In order to solve the problem, fuzzy decision-making thesis is introduced. Firstly evaluation criteria system is established which consist of 4 first-grade criteria including execution conditions, operation conditions, operation supports, social and economic conditions. Secondly, triangular fuzzy number is introduced into representing the evaluation value of different alternatives in the decision matrix by several experts. The final evaluation value of each alterative is achieved after considering weight of each expert and weight of each criterion. In order to rank final evaluation value expressed by triangular fuzzy number, the degree of dominance between alternatives is defined by the way of difference of two triangular fuzzy numbers. The complementary judgment matrix expressed by crisp number is built up on degree of dominance between alternatives. The ordering vector of alternatives, which is eigenvector, is figured out from complementary judgment matrix. At last, a numeric example is made to demonstrate the method proposed in this paper is effective and feasible.

Abstract: Rail transit is one of the most important public transport facilities to achieve new urbanization and promote the coordinated development of urban and rural areas, and is the most effective and feasible method to solve traffic problems of largest urban region in our country. This article exemplified by developed areas of the mega-cities of Foshan III rail transportation planning, general requirements have been put forward based on the convergence of demand forecasting from four aspects —rail traffic levels, differentiation, systematization and standardization; At the same time it also propose convergence countermeasures for land-use development, road network system, public transportation systems, cars, slow traffic systems, transport policy; What’s more, this article summarizes features of large urban rail transit convergence planning and provides guidance and reference on China's mega-cities’ construction of an integrated public transport system planning.

Abstract: Based on the demand characteristics of highway service area, this paper studies the basis of the highway service area infrastructure layout and site-selection, and has established some mathematical models to maximize the benefits and outcome, and also put them into practice by combining study project.