Comprehensive Transportation Network Research Articles

Research on the Synergistic Evolution of Comprehensive Transportation Network System in the Yellow River Basin Aimed at High-Quality Development

The high-quality development of the Yellow River Basin is still facing the issue of imbalance and inadequacy, and it urgently requires the backing and assistance of a well-coordinated and efficient comprehensive transportation network system. Based on this purpose, this study uses a composite system synergy degree model incorporating “mode dimension + regional dimension” to analyze the evolution of this network. The results indicate the following: (1) Railway and air transportation surpass highway transportation in growth and synergy, though overall system synergy is still low. (2) Downstream areas are gradually taking the lead, and the orderliness of each subsystem is gradually becoming consistent. The complexity and variability of the composite system’s synergy are high, with an overall low level of synergy. Overall, despite improvements in service capacity and quality, better integration of different transport modes and enhanced cross-regional cooperation are needed. This study reveals and analyzes in depth the complexity of the comprehensive transportation network system in the Yellow River Basin and its spatiotemporal characteristics of synergistic evolution. We propose suggestions for high-quality development at national, regional, and industry levels, fostering the continuous improvement of the system structure, which aids in overcoming the tangible obstacles faced by the high-quality development of the Yellow River Basin.

Land price dynamics in response to high-speed rail network characteristics: An empirical analysis

High-speed railway (HSR) has become the backbone of China's rapid and comprehensive urban transportation network system. However, the impact of the network characteristics of HSR on urban land prices has not been studied in sufficient detail. To fill this gap, this study focuses on both the Yangtze River Delta urban agglomeration and the Beijing-Tianjin-Hebei urban agglomeration and explores the linkage relationship between the HSR network and urban land prices. For this analysis, social network analysis and fixed effects model are used. The results show that the overall HSR network density of these two urban agglomerations still has room for improvement. Affected by regional proximity and the direction of HSR lines, HSR presents a spatial pattern of a multi-center–multi-tier network. The “siphon effect” is the main effect of the HSR network characteristics on land prices. However, the weakening degree of spatial spillover effect on siphon effect of the HSR network in the Yangtze River Delta urban agglomeration is stronger than that in the Beijing-Tianjin-Hebei urban agglomeration. Local governments should fully utilize the spatial effects of HSR and enhance the level of coordinated development among urban agglomerations.

Performance analysis for a maritime port with high-frequency services: an Italian case study

The increasing demand at maritime traffic nodes in multi-modal transport emerges as a critical factor for the country’s economy. Consequently, terminal operators should focus on proper strategies and policies to satisfy the increasing demand. This paper exploits the integration of Information Communications Technology systems into physical infrastructures and offers an in-depth study of operations and performance optimisation for a maritime terminal. The case study is the Messina-Tremestieri port (Sicily, South Italy), characterised by a high flow of cars and freight vehicles. This port is in the comprehensive Trans-European Transport Network, and it links Sicily Island with Italy, offering high-frequency services. About 30% of the goods by Ro-Ro services pass through this port: so, it makes sense to use it as a case study. The arrivals distribution, the terminal capacity and the supply offered by the shipping companies are considered input, and terminal efficiency is evaluated through indicators such as the saturation of the yard area and the average vessel load factor. Besides, the study offers two viable solutions to the emerging port saturation. First, a tactical policy (with no infrastructural costs) includes the introduction of flexible time windows. Alternatively, the introduction of additional vessel services has been evaluated during peak hours. Benefits have been simulated by comparing the total number of vehicles served in current and simulated scenarios.

Research Progress of the Impacts of Comprehensive Transportation Network on Territorial Spatial Development and Protection

Coordination between the construction of transport infrastructure and the development and protection of territorial space is an important factor in promoting sustainable regional development, but there is still a lack of systematic research on the impact of transport on territorial space worldwide. Following the logic of “development trend revealing—theoretical and technological summary—mechanism analysis”, the research progress on the two aspects of development and protection of territorial space related to transport is systematically and comprehensively sorted from the perspective of multi-scale and multi-mode transport. The results show that: (1) The number of research papers on the effect of transport on territorial space is on the rise, and there is an obvious trend of cross-disciplinary research. (2) Transport infrastructure will promote the development of territorial space in terms of land use change, spatial-temporal compression, and economic development, and will affect the protection of territorial space in terms of ecological impacts, energy consumption and carbon emissions, and the crossing of protection zones. (3) In the existing research, the lack of multi-dimensional indicator system construction and analysis, insufficient research at the mechanism level, and insufficient combination of theoretical research and practical application are the main problems at present, and an important direction is urgently needed for future research.

Unveiling transportation disparities: investigating accessibility gaps in metropolitan cities using GIS—a case study of Alexandria, Egypt

IntroductionPublic transportation is essential to reduce pollution and traffic congestion in urban areas. However, in densely populated regions like Alexandria, characterized by high population density and limited road infrastructure, accessibility to diverse transportation options is crucial.MethodsThis study investigates the accessibility of public transportation modes, including railways and buses, and their interaction with informal transit. Questioning if public transportation alone will be sufficient for pedestrians or if the presence of informal transit is crucial, and whether all residents of Alexandria have their rightful accessibility for different transport modes, the goal was to establish an efficient and interconnected transportation network. A survey was conducted in cooperation with Transport for Cairo to investigate all transport routes throughout Alexandria, further using ArcGIS Pro to identify gaps in public transportation coverage.ResultsFindings revealed that public transportation alone is insufficient due to limited bus and railway coverage because of their fixed linear routes. Informal transit, like microbuses, plays a vital role in filling these gaps.DiscussionThe study emphasizes the need for a comprehensive and sustainable transportation network that considers both formal and informal transit. These insights can guide policymakers and urban planners in improving public transportation in Alexandria and similar cities worldwide.

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

The electrification of road transport is developing dynamically around the world. Many automotive companies are introducing electric vehicles to the market, and their popularity is constantly growing. The increasing popularity of electric vehicles is caused by individual countries’ governments encouraging people to switch to electric vehicles and their lower operating costs. In 2022, the number of electric vehicles in China will exceed 10 million. Europe and the USA rank second and third in global electric car stock, respectively. The number of available electric vehicle models is constantly growing, remaining approximately 2.5 times smaller than the case of vehicles with an internal combustion engine. Among others, a significant limitation to the popularity of electric cars is users’ fear of range and the density of the charging infrastructure network. This paper presents the objectives regarding public areas and charging stations around the European Union’s comprehensive and core transport network. It is worth noting that the vehicle and charging point’s charging connectors vary depending on the geographical region. Therefore, the currently used charging connectors for different regions are presented. Charging time depends significantly on the charging current, the power of the charging point, and the devices installed in the vehicle. The paper analyzes the limitations of charging power resulting from the onboard charger’s power and the charging point’s power. It presents the charging time of selected electric vehicles. The second aspect that is also the subject of user concerns and discussed in this article is issues related to the safety of electric vehicles. General safety indicators of such vehicles based on Euro-NCAP tests are characterized. Attention was also paid to more detailed problems related to active and passive safety and functional safety analyses. The issue of the fire hazard of electric vehicles was discussed together with modern experiences regarding post-accident procedures in the event of fires.

Dynamic Evolution and Regional Differences in the Efficiency of Compact Urban Development in Chinese Cities—Based on the Perspective of Compact Land Use

Modern cities require urban compact development to be sustainable. The evaluation of urban compact development may help create more accurate and realistic policies. The spatio-temporal dynamic evolution of urban compact development efficiency and its regional differences in China are examined in this study. This paper analysis uses 282 cities from 2005 to 2021. The unexpected output super-efficiency SBM model measures urban compact development efficiency. In this study, the urban compact development efficiency’s spatial and temporal patterns are also examined using kernel density estimation (KDE) and the Theil index (TI). The average efficiency of urban compact development in China has decreased slightly. However, compact efficiency disparities are decreasing. Eastern cities have a relatively stable compact efficiency, while central and western cities vary more. The compact efficiency polarisation has not changed fundamentally. The compact city growth model’s spatial agglomeration is poor, limiting its spatial spillover impact. Thus, compact urban development is necessary to speed up planning, facilitate inter-city production factor movement by creating a comprehensive transport network, and maximise co-location benefits with the regional integration strategy. This method will gradually reduce regional urban development disparities and push Chinese cities towards more refined and sustainable compact development.

A Research on the Coordinated Development of the Transportation System and Socio-economy in the Guanzhong Plain Urban Agglomeration of China

Transportation plays an important role in the coordinated development of urban agglomeration economy and society. It is an important tool to improve the level of coordinated development. This study takes the Guanzhong Plain urban agglomeration as the research area, which has a good foundation in comprehensive three-dimensional transportation network and needs to be improved in regional economic and social integration, and discusses the coordinated development of the economy and society in this area from the perspective of transportation system. Firstly, discuss the current situation of transportation and economic and social development in the Guanzhong Plain urban agglomeration; Secondly, analyze the problems in the coordinated development of transportation and regional economy and society; Finally, by integrating literature research, the coupling mechanism and improvement path between urban smart transportation and port economy and the Guanzhong Plain urban agglomeration are proposed, in order to improve the mechanism and system for coordinated economic and social development in the western region, and provide scientific reference and policy recommendations for promoting the benign interaction between transportation and regional economic and social development.

Research on Optimization of Medical Waste Emergency Disposal Transportation Network for Public Health Emergencies in the Context of Intelligent Transportation

In order to build a more comprehensive emergency disposal and transportation network system for medical waste, it is necessary to consider various uncertain factors and data characteristics. Therefore, in the context of intelligent transportation, this article considers the uncertainty of the quantity and regional population density of infectious medical waste generation as well as the emergency disposal of infectious medical waste under multi-cycle and multi-objective conditions, and it constructs a multi-cycle emergency disposal logistics network optimization model for infectious medical waste under uncertain conditions. Through deterministic transformation of the model and data mining of the medical waste disposal logistics network in Wuhan, China, the multi-objective model under uncertain conditions was also solved and sensitivity analyzed using the MOPSO-NSGA2 intelligent algorithm, verifying the effectiveness and superiority of the algorithm.

Situation, Challenges and Suggestions for the Integrated Development of Transportation and Energy

Promoting integrated development of transportation and energy is of great significance for achieving carbon peaking and carbon neutrality goals, deepening the nationwide battle to prevent and control pollution and accelerating the building of China’s strength in transportation. In the future, with the continuous growth of traffic demand, the acceleration and improvement of the comprehensive national transportation network and the continuous expansion of new infrastructure construction in the transport sector, the energy demand of transportation will continue to increase. At present, the institutions and mechanisms for the integrated development of transportation and energy are imperfect, supporting policies are not yet sound, and some key technologies are in urgent need of breakthrough. To further promote the integrated development of transportation and energy, we need to further clarify the strategy and pathway, optimize development policies and mechanisms, explore feasible business models, and strengthen scientific and technological innovation in this field.

A comparative analysis of the robustness of multimodal comprehensive transportation network considering mode transfer: A case study

<abstract> <p>China has built a nationwide transportation network, but there needs to be a smooth connection and transfer between different modes. Five networks are constructed to explore the characteristics of a multimodal comprehensive transportation network (CNet) in Jiangsu Province based on the optimized modeling method and multisource data. Statistical and robustness characteristics are analyzed for CNet and other single-mode networks including the highway, railway, navigation channel and airway networks (HNet, RNet, NNet and ANet, respectively). The research results show following: (ⅰ) In Jiangsu, CNet, HNet, RNet and NNet are not scale-free networks and do not have small-world properties. However, ANet is the opposite. (ⅱ) The five networks in Jiangsu are robust to the random attack and their robustness changes during the attack. However, their robustness is different under different calculated attacks. For all attack strategies, CNet is the most robust. (ⅲ) In Jiangsu, the three optimized methods enhance the robustness significantly. The network failure is delayed by 12.34, 2.79 and 2.44%, respectively. The average connectivity degree is improved by 265.69, 52.95 and 32.54%, respectively. The more hubs there are with powerful transfer capacity, the stronger the network robustness. The results reveal the key points of the construction of a multimodal comprehensive transportation system and can guide the design and optimization of it.</p> </abstract>

Research on the path of artificial intelligence to empower intelligent port upgrading and transformation

As the key nodes of the global comprehensive transportation network, ports play a pivotal role in global trade and shipping. With the progress of artificial intelligence technology and the promotion of intelligent port development concept, intelligent port will be the inevitable trend and choice of all countries in the world. This paper analyzes the application status and problems of artificial intelligence in promoting the construction of smart ports, discusses the typical application of artificial intelligence in the intelligent port upgrading, and details the practical application of artificial intelligence in the construction of intelligent port, including container electronic tags, unmanned driving technology, intelligent ship stowage, and intelligent port scheduling. Finally, the corresponding optimization countermeasures of intelligent port are put forward.

Measurement and Prediction of Urban Land Traffic Accessibility and Economic Contact Based on GIS: A Case Study of Land Transportation in Shandong Province, China.

As the basic support of regional economic and social development, land transportation is one of the important engines to promote regional development, and its construction and improvement will have an important impact on the regional economic pattern. Based on the road network of Shandong Province, China, in 2020, according to the Medium and Long-term Development Plan of Comprehensive Transportation Network of Shandong Province (2018-2035), this paper uses the GIS network analysis method, weighted average travel time, modified gravity model and other methods to study the land traffic accessibility and economic relation intensity of prefecture-level cities in Shandong Province, China, in 2020 and 2035. The results show that the distribution of land traffic accessibility in Shandong Province, China, shows a certain regional main road pointing characteristic in 2020, and the urban accessibility level gradually decreases along the Beijing-Shanghai high-speed railway and Jinan-Qingdao high-speed railway to the periphery. In 2035, the land traffic accessibility of Shandong Province, China, will be more spatially distributed as "concentric circles". From 2020 to 2035, the urban land traffic accessibility and the balance of economic contact in Shandong Province, China, will be improved significantly. The research results can provide a theoretical reference for optimizing the traffic network pattern and promoting urban economic contact in Shandong Province, China.

Optimization of Joint Decision of Transport Mode and Path in Multi-Mode Freight Transportation Network.

This paper mainly studies the joint decision of transportation mode and path in the multi-mode transportation network to provide the optimal plan for freights. This paper constructs a multi-mode transportation network system by setting virtual connections between networks with different transportation modes. The Dijkstra and multi-objective optimization algorithms are used to select the path in the network. After determining the optimal path, the paths’ time, cost, and risk functions are established. The multi-objective function is converted into a single objective function by setting constraint conditions through the analytic hierarchy process. Then, the function is optimized by using the gradient descent method. Finally, the transportation plan for the case of chemical freights is formulated by using the above algorithms. The results show that the proposed algorithm can successfully find the solution for the joint decision of transportation mode and path in the complex network. After a quantitative analysis of the planned effect, the optimization actions of changing the initial transportation time and adjusting the upper limit of resources are proposed. The study findings provide a theoretical basis for improving the efficiency of the comprehensive transportation network.

Urban Network Spatial Connection and Structure in China Based on Railway Passenger Flow Big Data

China’s transportation industry has made great achievements in the past 40 years of reform and opening up. At the same time, it has gradually accumulated a series of problems. These problems have led to closer and more complex social and economic connection within and between regions of different scales. The existing research only carries out the characteristic analysis of urban network spatial connection and pattern from a single perspective such as “flow space” theory, spatial interaction model and accessibility method, and fails to accurately describe the complex socio-economic relations between regions. Based on the big data of railway passenger flow, this study selected weighted average travel time, railway network density, and the economic connection model to express the urban network spatial connection and structure of China in 2016 from the perspectives of time, space, and interaction. In 2016, the accessibility, connectivity, and total urban external economic connection of the railway network showed a trend of declining from the east to the west. The top 50 cities ranked by interurban economic connection were all located in the central and eastern regions and showed “diamond shape” distribution characteristics. The four diamond-shaped pairs were Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta, and Chengyu urban agglomerations. This shape was basically in line with the T-shaped space that has existed for a long time in China’s regional development. The accessibility, connectivity, and total external economic connection of national-level urban agglomerations were greater than those of regional-level urban agglomerations, and far greater than those of local-level urban agglomerations. The results showed that there was a mismatch between the layout of the railway network and the population. It will still be necessary to focus on strengthening the construction of transportation infrastructure in urban agglomerations and densely populated areas in the future. This study enriches the “flow space” theory, more fully describes urban network spatial connection and structure in China by considering the three perspectives of time, space, and interaction, and can provides reasonable suggestions for the development of national comprehensive three-dimensional transportation network planning, regional spatial structure optimization, and sustainable development.

Location and spatial dynamics of maritime services: A case study of the Yangtze River Delta, China

AbstractThe evolution of the spatial structure of maritime services is a geographical phenomenon closely associated with regional port economic development. However, the spatial and temporal characteristics of maritime services are still not fully understood, especially in emerging market countries and regions. The goal of this study was to reveal the regional‐scale location and spatial dynamic characteristics of maritime services and their influencing factors. Specifically, using value chain perspectives, integrating both qualitative and quantitative approaches, we develop a database of maritime service enterprises in the Yangtze River Delta, China. Our empirical results show that maritime services and their various value chain segments display significant spatial agglomeration closely related to the scale of port development. Hub ports and large port cities are the main areas of concentrated maritime services. Moreover, during the spatial reconstruction of regional maritime services, non‐port and small port cities have gradually become important locations for agent maritime services (e.g., shipping agencies, freight forwarding) and traditional maritime services (e.g., port operators, warehouse and storage), dispersing and reconcentrating services in the hinterland. Finally, we analyze the influences of the hinterland logistics center, regional comprehensive transportation network, information communication technology, industrial agglomeration effect, local government competition, and cooperation on the spatial dynamics of maritime services in the Yangtze River Delta region.

THE TRANS-EUROPEAN TRANSPORT NETWORK: INITIATIVES OF THE NEW EU MEMBER STATES

The European Union transport policy concerning the Trans-European core and comprehensive transport network is considered. Priorities for modes transport development are considered. The main projects of the transport network of new EU member states, united by the initiative of the Three Seas: Baltic, Black and Adriatic Seas (3SI) are analyzed, The core network of Ukraine and its indicative projects until 2030 are considered. The 3SI projects in which Ukraine is interested, have been identified.

Impact of Cambodian international logistics policies on container cargo flow in a comprehensive intermodal transport network

ABSTRACT Cambodia has maintained steady economic growth in the past few years; however, its logistics infrastructure is still underdeveloped. Therefore, many logistics projects are being planned and implemented in Cambodia to improve its infrastructure. Because of a growing need to evaluate the effects of these projects quantitatively, this study forecasts the container flows in Cambodia in 2025, by taking into account the economic growth and progress of these projects. This study uses a combination of the Global Trade Analysis Project recursive dynamic (GTAP-RD) model and the global logistics intermodal network simulation (GLINS) model to estimate the impact of various policies related to infrastructure. The authors examine five future policy scenarios and found the policies that will have a significant effect on international container shipping, such as reducing border-crossing time and cost at national borders between Cambodia and Vietnam or Thailand and doubling the frequency of the liner services calling at the Sihanoukville port.

Two-Sided Matching on Comprehensive Transportation Network Emergency Vehicles’ Allocation

In emergency rescue, the allocation of comprehensive transportation network emergency vehicles often affects the efficiency of the whole rescue process. In the context of disasters, this paper researches the one-to-many two-sided matching problem between the emergency vehicles and the materials to be transported. Firstly, based on the needs of both parties involved in the matching, the satisfaction evaluation systems are constructed; with the goal of maximizing the weighted satisfaction of the affected areas and vehicles, the optimization model of the materials and emergency vehicles matching is established; then, an improved National Intern Matching Program (NIMP) algorithm is designed to solve the model, which is based on the k: 1 experimental pairing and updating ideas, and can take into account the capacity and destination constraints of vehicles in the matching process. Finally, through the calculation of an example, the matching scheme can make the satisfaction of material transportation reach 0.7392, and the simulation analysis proves that the scheme keeps certain stability in risky conditions.

Rapid charging provision, multiplicity and battery electric vehicle (BEV) mobility in the UK

This paper provides significant new insights into the spatial heterogeneity of public rapid charging provision for Battery Electric Vehicles (BEVs) in the UK. In particular, the paper makes three new and original contributions to our understanding of BEV mobility and the importance of rapid chargers and the multiplicity of rapid charging provision therein. First, the paper sets out a new conceptual framework which captures the different dimensions of BEV mobility. Second, the paper highlights the importance of multiplicity, recognising the important distinction between i) ‘on-site’ multiplicity; and ii) spatial multiplicity in rapid charging provision. Both have received relatively little attention to date yet are highlighted as being fundamental in shaping an individual's ability to undertake extended journeys by a BEV. Third, the paper highlights how the development of charge point multiplicity is currently largely restricted to large urban areas and strategic road networks with current policies focusing on enhancing BEV infrastructure along the TEN-T Trans-European Comprehensive Transport Network. In considering spatial multiplicity in relation to the “reserve range” of BEVs, the paper identifies spatial variations in road network connectivity. Limited interconnectivity in rural areas - and which is particularly apparent for lower range BEVs - reflects an emerging market failure with the potential to undermine efforts to secure a “just transition” to BEVs