Construction Of Transport System Research Articles

Calculated Justification of Reinforced Soil Structures in the Design and Construction of Transport Systems

This article describes the design and construction of transport systems including highways. According to the environmental infrastructureб a lot of attention is paid to the improvement and reconstruction of traffic roads, including quality, cost, workability, reliability, comfort, sustainability, efficiency and safety in operation. One should take into account their compliance with the law and modern requirements of natural and technical system formation with the use of new building materials and technologies, efficient computational models and schemes, considering the engineering research in specific facilities. Based on the conducted analysis, technical solutions for highways’ retaining works using reinforced soil structures and composite (polymer) materials have been developed. The study on the highway retaining works reconstruction of the bridge in the Novocherkassk city is presented. On the basis of the performed experiments, the parameters of reinforced soil structures for different types of ground bases are proved.

Transportation network design for maximizing space–time accessibility

One of the goals of transportation system construction and management is to improve individuals’ accessibility or the ease of reaching desired activities, destinations and services. However, many transportation network design models instead focus on maximizing individuals’ mobility or the ease of movement within the network. By adapting a space–time prism analysis framework, this paper aims to address a new urban network design problem to maximize the system-wide transportation accessibility between major activity locations, subject to a given highway construction budget. By constructing a time-dependent space–time network, we formulate the problem as a linear integer programming model to maximize the number of accessible activity locations within travel time budget for road users. A Lagrangian relaxation solution framework effectively decomposes the original complex problem into classical subproblems such as knapsack and time-dependent least cost problems. Various examples and discussions are provided to consider the effectiveness of the proposed method in modeling accessibility-enhancement strategies such as congestion mitigation and land use policies.

The Structural Properties Evaluation on Ultra-Thin Surfacing Hot Mixture Asphalt Concrete

Overlay as the conventional method to maintain the surface quality of pavement need a large number of fresh natural aggregate and bitumen due to the relatively thick layer and consequently the road geometric must be corrected, so that regarded as not environmentally friendly. The alternative solution is Ultra-Thin Surfacing Hot Mix Asphalt (UTSHMA) which has a thickness of 12-15mm. UTSHMA gradation is designed based on the highest Marshall Quotient value tested by performing Marshall Test of five variations gradation from Standard Specification Construction of Transport Systems. The Optimum Bitumen Content (OBC) obtained by Marshall Test. The bitumen used for this is 60/70 penetration. The several structural tests were performed on the best gradation at OBC consist of Marshall tests, Indirect Tensile Strength (ITS), Unconfined compressive strength (UCS) tests and water permeability test. The UTSHMA mixture with coarse gradation has the greatest Marshall Quotient at 6.35% OBC accompanied by the higher ITS and UCS properties compare to conventional asphalt concrete. The coefficient permeability of UTSHMA is lower than conventional AC, indicated that UTSHMA is more resistant to water penetration. The research concluded that UTSHMA has compromised the standard specification and has sufficient structural properties compare to conventional AC and can be regarded as structural layer of pavement for overlay and road preservation design.

Study on Evaluation of Coordination Degree of Comprehensive Transport System Construction Based on DEA Model

Due to the problems of long-term irrational traffic structure, uncoordinated transport joins, unsuccessful institutions and mechanisms, China's comprehensive transport system construction is still at an initial stage, the judgment on the construction of comprehensive transport system also lacks a unified standard. Combined with China’s general idea of comprehensive transport development, the key aspects of construction of comprehensive transport system is analyzed, the evaluation indexes of comprehensive transport system construction are constructed by the using of Data Envelopment Analysis model, providing a reference for subsequent work to construct a comprehensive transport system.

Financial and tax risks at implementation of "Chayanda- Lensk" section of "Sila Sibiri" gas transportation system construction project

High social and economic importance of large-scale projects on gasification of East Siberian regions of Russia and diversifying gas exports poses the problem of complex risk analysis of the project. This article discusses the various types of risks that could significantly affect the timing of the implementation and effectiveness of the project for the construction of the first line of "Sila Sibiri", the "Chayanda-Lensk" section. Special attention is paid to financial and tax aspects of the project. Graphically presented analysis of the dynamics of financial indicators reflect certain periods of effectiveness in implementing the project. Authors also discuss the possible causes and consequences of risks.

Research on Building Integrated Urban Rail Transport System Model of the Hohhot

With the improvement of China's international status, integrated transport concept has become firmly rooted. Integrated urban rail transport system as part of comprehensive transportation has become an important means to ease urban traffic problems, is not only an urgent demand for transport services and residents, but also the need to build a conservation-oriented society. In this paper, for the current problems of urban transport ,research on building the rail transportation system of Hohhot, considering from the city policy, technology, economics, management aspects, etc., demonstrate the reasonableness of the transport system construction, technically advanced and the economic viability and feasibility of construction management while analyzing factors affecting the construction of rail transportation system, thus providing a scientific basis for investment and decision-making.

Construction Strategy on Low-Carbon Transportation System in New District of Lanzhou

For low-carbon transportation is important to the construction in a city, as a new city, New District of Lanzhou has more advantages to construct low-carbon transportation system, compared with the completed cities. Combining with planning features of it, the article proposes some targeted measures to low-carbon transportation system construction in New District of Lanzhou, from the transverse dimensions, like software, hardware, and vertical dimensions, like inner of the district, the connection between main and new district. Result of carbon emission calculation demonstrates the importance of low-carbon transportation in New District of Lanzhou.

Renovation of Urban Traffic in Shenyang City by the Twelfth National Games of China

In order to explore the effects of The Twelfth National Games of China (TNGC) on host city traffic, and improve efficiency of city traffic, we applied questionnaire survey and interview with local residents to acquire the change information of city traffic in Shenyang City. We analyzed city traffic conditions during preparatory period of TNGC, and change of urban traffic from TNGC including traffic road planning, running time of bus, subway construction, etc. Results indicated that TNGC has accelerated construction of transportation system. But there were still some problems, such as road construction leading to nearby residents inconvenience. Finally we puts forward some suggestions that before road were repaired, government tried to build a temporary, patency channel for residents in the vicinity.

Transportation Model Application for the Planning of Low Carbon City – Take Xining City in China as Example

The low carbon development is the important trend of Chinese urbanism, and the gap between transportation infrastructure resource and travel demand induces to the transportation problems, such as congestion, energy, and safety. There is a missing connection with the Demand-Oriented Planning and Low-Carbon-Oriented Planning, since most of our discussion in the Urban Comprehensive Planning Proceed is focusing on the commuting congestion in the peak hour. This paper discussed the benefits and problems of the three solutions of transportation, based on the Transit Priority Strategy in China, including the transportation policy research, smart transportation research, as well as planning and design research. A further Model exploration and application for the smart low-carbon transit and non-motorized transportation system construction strategic decision making is discussed. The result shows around 30% energy consumption and CO2 emission could be waived if we choose the low-carbon city development mode. The solution and case study apply the Unit City mode and City Intelligent Energy Network technology in Xining City Comprehensive Planning to find out how to form the future development in the cities in China.

Medición e interpretación de vibraciones producidas por el tráfico en Bogotá D.C.

Due to the development of Bogota (main city of Colombia) and to its increase of population, transport systems have been constructed in the last decade. Although these systems increase the well-being of the citizens, the traffic could generate vibrations problems. These vibrations could affect the people and the constructions near to highways. These effects can be important for high levels of vibrations. These vibrations, depend, among others aspects, of the mechanical characteristics of the soils. Considering the future plans of construction of transportation systems in Bogota, vibrations due to traffic and railroad in 6 sites of Bogota were registered. In this places were indentified typical soils of the seismic microzoning of Bogota. Measurements were made to register the vibrations due to the train of the savannah, Transmilenio (articulated buses) and public transport mainly. With this information curves of attenuation of acceleration and speed were determined. The actual vibrations levels are perceived by the people but they do not cause problems to the buildings. However, these vibration levels are the datum point of future measurements when increase the traffic, the weight and the speed of the vehicles.

Transport infrastructure rationale for carbon dioxide capture & storage in the European Union to 2050

Abstract Along with public transport modification, building and consumer efficiency, renewable energy and bio-fuels, among other greenhouse gas mitigation strategies within the European Union (EU), Zero Emission Power utilising Carbon Capture and Storage (CCS) is one of the key options to significantly reduce CO 2 quickly as the world begins the transition away from fossil fuels and high CO 2 emissions. Transporting CO 2 from capture locations to storage sites will play an integral part in the implementation of this strategy, as geography, urbanism, regulation, regionalism and currently installed transport systems challenge the ability of the EU and its member states to store billions of tonnes of CO 2 before the middle of this century. While the building of a CO 2 transportation infrastructure is the primary subject of this paper, no discussion of transport can begin without at least a brief discussion of how and where CO 2 will be safely and securely stored, and the identification and rationalization of the capture sites to the storage locations. Only after this exercise is complete can a transport infrastructure be devised that will safely deliver the captured CO 2 for long-term storage and sequestration. The EU Zero Emissions Technology Platform SSI workgroup report used the latest data available from public sources to identify within each EU member state, both the largest point sources of CO 2 emissions and the most likely storage locations. Early opportunities for success whereby relatively pure CO 2 streams might be captured with minimal cost and complexity were also identified. Lastly, the concept of the EU Flagship programme was rationalized to storage locations. Recommendations were given for the assigned tasks. Within this context the SSI workgroup reviewed options that might afford member states the opportunity to begin the construction of transport systems and how an EU wide storage infrastructure might be devised and evolve, including efforts for the EU Flagship Programme, as well as a discussion on what such an infrastructure would likely not become. The report used as its primary analogue the history of the currently installed natural gas pipeline system in Northwest Europe. Transport considerations used estimations from energy modelling of how much CO 2 might ultimately be stored by 2050 as a basis for the EU wide transport design. From that, geographical and urban considerations, physical movement and pressure limitations, CO 2 quality variations, regulatory impediments, legal options, economic unknowns and value chains, pubic acceptance and education, along with verifiable, certifiable storage locations, both offshore and onshore were used to create an overall transport scenario that may prove a workable option in the coming decades.

Fuzzy comprehensive evaluation of container transportation modes along the Changjiang River main line and its delta area

The Changjiang River (Yangtze) is one of the fastest growth areas of container transportation in China. Rail, road and water transportation have competed against each other for container transportation in the Changjiang River main line and its delta area. It is of significance to assess these different transportation modes scientifically in order to organize container transportation efficiently in this area and make decision for integral plan and construction of transportation system in this area. This paper outlines application of fuzzy comprehensive evaluation to appraise different modes of typical direction of containers. Twelve assessment indexes were decided. Membership functions were formulated. Evaluation results indicated that road transportation was optimal mode in the Changjiang River delta area, however water transportation was the primary way in the Changjiang River main line.

The construction and its development of the overseas transport system in northeast China

This paper made a description on the basic patterns of constructing overseas transport system in northeast China, mainly including a group of harbours in the southern part, the transport system taking Fangchuan Port as a central port in the eastern part, Heilongjiang Port and its transport system in the northern part and the construction of transport system and the programme of Manzhouli Port and Sino-Mongolian railway, according to the present situation of transport system in northeast China. This paper argues that the problems of the construction of ports and harmony of transport network concerned for developing overseas transportation in northeast China must be emphatically solved.

Science and engineering: a case study in British experience in the mid-nineteenth century

By 1870, civil and mechanical engineers had both achieve a substantial measure of institutional and professional recognition in Britain. The great boom in industrial development and the construction of transport systems had ensured them places of importance and honour in mid-Victorian society. Several engineers had received knighthoods and become members of parliament. Many had grown rich from the practice of their skills, and had acquired large houses and landed estates (1). Yet behind this new-found panoply of power and influence, the great engineers of nineteenth century Britain remained essentially the same as the diligent artisans, millwrights, surveyors, and craftsmen, from whom the engineering profession had sprung in the previous century.