Article
Environmental Sciences
Ting Zhang, Yuanhong Qiu, Rui Ding, Jian Yin, Yuequn Cao, Yiming Du
Summary: The construction of the New Western Land-Sea Corridor is crucial to the economic development of western China and even Southeast Asia. Research analyzes the evolution of urban economic spatial pattern of the New Western Land-Sea Corridor in different years and discusses the coordinated development between economic connection and accessibility and its influencing factors. The research results show that labor force has an increasing influence on the urban centrality of the New Western Land-Sea Corridor, and the urban network has shifted from a unipolar attraction type to a spatial pattern of one main and multiple subordinates. Urban accessibility presents a core-periphery spatial pattern, and the coupling coordination degree presents the spatial characteristics of centro-periphery. The economic correlation strength, spatial accessibility, and the coordinated distribution of the two all have obvious spatial agglomeration characteristics. There are spatial differences in the influencing factors of the coupling coordination degree. Based on this, the research suggests a development mode of growth pole, area, and axis, emphasizes the problems of labor force in urban development, and strengthens the level of coupling coordination between regional transportation and economy to promote the integration of regional transportation, logistics, and economy.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Economics
Noriko Otsuka, Dirk Wittowsky, Marlene Damerau, Christian Gerten
Summary: This paper explores methodologies for assessing walkability in urban areas close to railway stations based on four key criteria. Researchers conducted field observations and developed an adapted scoring system to consider both environmental factors and personal perception in evaluating walkability.
JOURNAL OF TRANSPORT GEOGRAPHY
(2021)
Article
Computer Science, Information Systems
Bin Zhang, Jian Yin, Hongtao Jiang, Yuanhong Qiu
Summary: Nighttime lights remote sensing is advantageous in exploring the economic development of cities. This study used spatial analysis techniques and social network analysis to investigate the spatial characteristics of economic development and the economic connection networks within urban agglomerations in western China. The findings revealed changes in the spatial patterns of urban agglomerations and significant economic connections between cities. The conclusions and methods can provide policy support for the cooperative development of urban agglomerations and serve as a guideline for other economically underdeveloped regions.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2022)
Article
Ecology
Simona R. Gradinaru, Diana Andreea Onose, Eduardo Oliveira, Andreea Raluca Slave, Ana Maria Popa, Athanasios Alexandru Gravrilidis
Summary: This study analyzes the strategic plans of 242 cities in Romania and finds that equity is superficially addressed in these plans. While most plans aim to increase the availability and attractiveness of green infrastructure, very few explicitly address the needs of vulnerable groups. Interestingly, the equity concerns in the plans are not correlated with actual green space availability.
LANDSCAPE AND URBAN PLANNING
(2023)
Article
Oceanography
Tianhang Gao, Jia Tian, Chuan Huang, Hongyu Wu, Xing Xu, Changjian Liu
Summary: This study explores the microcontainer transport service and route selection problem within the context of a new transportation corridor. A multiobjective planning model is established to minimize transportation cost, time, and carbon emissions. The findings demonstrate that the New Western Land and Sea Corridor is appealing for time-sensitive cargoes and can enhance economic benefits with supportive policies.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Pariwate Varnakovida, Htet Yamin Ko Ko
Summary: The study focuses on the changes in land use, land surface temperature, urban heat island, urban density, and urbanization rate in the Bangkok Metropolitan Area during the development of the Eastern Economic Corridor project. The analysis shows that the increase in urban areas has led to a rise in land surface temperature, and the urban development has affected the land cover structure and urban density.
Article
Environmental Sciences
Yi Yang, Shen Guangrong, Zhang Chen, Sun Hao, Zhang Zhouyiling, Yin Shan
Summary: Urbanization leads to significant land use/land cover changes and increases urban heat island effect. This study analyzes the spatial distribution patterns of land use/land cover changes and surface urban heat island intensity, as well as the relationship between impervious surface and vegetation coverage and urban heat island intensity. The future land cover and land surface temperature in Shanghai are predicted under different development scenarios. The results show that the ecological space protection model can effectively reduce the urban heat island effect.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Haiyan Hao, Yan Wang
Summary: The rapid urbanization progress has exposed large populations and expensive civil infrastructure to climatic and weather-related hazards. Research suggests that maintaining accessible facilities and services is crucial for helping human communities adapt to adverse events. This study uses simulations to evaluate the relationship between urban form characteristics and urban accessibility, providing insights for future planning practices and policies.
LANDSCAPE AND URBAN PLANNING
(2022)
Article
Green & Sustainable Science & Technology
Shahnilla Haider Rizvi, Hira Fatima, Khan Alam, Muhammad Jawed Iqbal
Summary: This study focuses on the comparative assessment of surface urban heat island in coastal areas of Pakistan using remote sensing techniques, analyzing spatial patterns, seasonal changes, and the association between SUHI and wind stream. The results will be useful for urban planners to enhance environmental sustainability practices.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Environmental Studies
Anoraga Jatayu, Ernan Rustiadi, Bambang Juanda, Didit Okta Pribadi
Summary: The formation of the Jakarta Bandung Mega-Urban Region (JBMUR) has led to the rapid urbanization of its south corridor, resulting in significant social, economic, and environmental challenges. This study examines the impact of urban expansion in the JBMUR south corridor, focusing on spatial patterns and form dynamics through land-use changes analysis. Landscape metrics are used to quantify density, clustering, connectivity, and shape. The findings reveal that urban areas in the south corridor have grown significantly, with increased density, less compactness, and improved connectivity. These growth patterns are a result of misaligned planning policies, highlighting the need for future strategies to address these issues and ensure the sustainability of the JBMUR south corridor.
Article
Meteorology & Atmospheric Sciences
Jayesh A. Phadtare, Jennifer K. Fletcher, Andrew N. Ross, Andrew G. Turner, Reinhard K. H. Schiemann
Summary: The variations in monsoonal rainfall over the Western Ghats region are studied using different methods, and it is found that the strength of the low-level westerly jet controls the alternating offshore and onshore phases. A classification based on the Froude number is proposed, which shows that at low F values, rainfall is controlled by diurnal thermal fluctuation and circulations, while at high F values, orographic effects dominate and rainfall is independent of specific time of day.
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Rui Ding, Ting Zhang, Yuanhong Qiu, Jun Fu, Jian Yin, Yilin Zhang, Yiming Du
Summary: This article analyzes the structure and characteristics of passenger and freight transport network in the New Western Land-Sea Corridor, and studies the resilience and coordination development of the network. The results show that the spatial pattern of passenger and freight transport networks have evolved in different years. The disturbance strategy has the strongest effect on the network's performance, and the coupling coordination value is gradually rising. Therefore, recommendations on supporting the development of passenger transport and logistics are proposed.
APPLIED SCIENCES-BASEL
(2022)
Article
Urban Studies
Matan E. Singer
Summary: This study examines the affordability of housing and transportation for low-income households, finding that transit-rich neighborhoods are more affordable than auto-oriented ones due to lower transportation costs. However, only a small share of neighborhoods and housing units are affordable to very-low income households.
Article
Environmental Sciences
Tingting Huang, Chenghui Ding, Weibiao Li, Yilun Chen
Summary: By identifying and statistically analyzing rain clusters over Hainan Island, it was found that the area and long axis of rain clusters over land were usually larger than those over the ocean, with continental rain clusters often being square in shape. There were clear positive correlations between the area, long axis, and shape of rain clusters and the maximum rain rate, with continental rain clusters showing a higher correlation with the rain rate.
Article
Microbiology
Babette Muyshondt, Karen Wuyts, Anskje Van Mensel, Wenke Smets, Sarah Lebeer, Cristiana Aleixo, Marta Alos Orti, Joan Casanelles-Abella, Francois Chiron, Puglielli Giacomo, Lauri Laanisto, Marco Moretti, Ulo Niinemets, Pedro Pinho, Piotr Tryjanowski, Patrycja Woszczylo, Roeland Samson
Summary: This study found that phyllosphere bacterial communities in European cities are associated with urban intensity, and this association is influenced by several combined stress factors.
FEMS MICROBIOLOGY ECOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Junwei Zeng, Yongsheng Qian, Fan Yin, Leipeng Zhu, Dejie Xu
Summary: This paper proposes a multi-value cellular automata model under Lagrange coordinates based on reality, and simulates traffic flow in the Lagrange coordinate. It is found that traffic density and the number of lanes have a significant impact on traffic flow.
COMPUTATIONAL AND MATHEMATICAL ORGANIZATION THEORY
(2022)
Article
Computer Science, Interdisciplinary Applications
Chengjun Kang, Yongsheng Qian, Junwei Zeng, Xuting Wei
Summary: This paper introduces an improved car-following model that takes into account the preceding vehicle's velocity feedback and desired inter-vehicle distance. The stability criteria are obtained through control theory method to analyze the impact of these factors on the dynamic characteristics of traffic flow. Numerical simulations conducted on vehicle starting and traffic flow evolution processes demonstrate that the proposed model can better capture the characteristics of traffic flow.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2022)
Article
Engineering, Civil
Cheng Da, Yongsheng Qian, Junwei Zeng, Yongzhi Zhang, Dejie Xu
Summary: Traffic jamming has a significant impact on daily life. Studying urban traffic flow can provide new ideas for alleviating traffic congestion.
JOURNAL OF ADVANCED TRANSPORTATION
(2022)
Article
Green & Sustainable Science & Technology
Xin Li, Yongsheng Qian, Junwei Zeng, Xuting Wei, Xiaoping Guang
Summary: This paper studies the structure of street networks and urban travel characteristics, using Lanzhou as an example to analyze the relationship between spatial accessibility of streets and residents' travel and service demands in strip cities. The results show that Lanzhou has a radial street network structure, but the development of old and new urban areas is uneven. Streets with diverse functions attract population clustering and exhibit a polycentric clustering feature in space.
Article
Physics, Multidisciplinary
Yongsheng Qian, Cheng Da, Junwei Zeng, Xuexin Wang, Yongzhi Zhang, Dejie Xu
Summary: This paper proposes a bidirectional quasi-moving block cellular automaton model for single-track railways to simulate the impact of quasi-moving block on the passing capacity. The simulation is conducted using the Naqu-Lhasa section of the Qinghai-Tibet Railway as an example. The results show that adjusting the mixed ratio and stop time of freight trains under the quasi moving block can improve the passing capacity, and it is recommended to minimize the distance between stations in the preliminary line design.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2022)
Article
Mathematics, Applied
Chengjun Kang, Yongsheng Qian, Junwei Zeng, Xuting Wei
Summary: This paper investigates the influence of time delay effect and steady flow control strategy on traffic flow. A new method is applied to model and analyze the traffic system, and a discrete-time lattice hydrodynamic model considering time delay is introduced. The asymptotic stabilities and corresponding stable conditions are derived for the proposed model with constant and varying time-delay. Numerical simulations are conducted to compare the traffic flow evolution trend with and without time delay, and density wave characteristics for traffic flow system with time delay under different control gain conditions are intuitively shown. The results indicate that time delay effect can aggravate traffic congestion, and traffic congestion can be effectively relieved by considering steady flow control signal.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Physics, Multidisciplinary
Junwei Zeng, Yongsheng Qian, Jiao Li, Yongzhi Zhang, Dejie Xu
Summary: In the future, there will be a mix of intelligent connected vehicles and traditional manual driving vehicles, and the impact of intelligent connected vehicles on traffic flow has attracted attention. A two-lane heterogeneous traffic flow cellular automata model of expressway is proposed to study this issue. The simulation results show that the proportion of intelligent connected vehicles and the size of platoons can effectively improve traffic capacity and alleviate congestion. However, a larger platoon size in a high-density intelligent connected vehicles environment may have a negative impact on traffic flow and energy consumption.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Environmental Studies
Yue Yang, Yongsheng Qian, Junwei Zeng, Xuting Wei, Minan Yang
Summary: By analyzing the Point of Interest (POI) data of daily facilities used by Shanghai residents, this paper calculates the walk scores of community residents within a 15-minute walking distance using a walkability assessment tool and examines the spatial correlation with population density. The results show that high walk scores are concentrated in central areas, while low walk scores are scattered in the suburbs. Access to bus stops and commercial services has high walkability scores, while access to parks and primary schools has low walkability scores. Compact and accessible spatial layouts significantly improve community walkability. The utilization of facilities should be reasonably configured based on the spatial distribution of the community. Lastly, community walkability is positively correlated with population density.
Article
Engineering, Civil
Futao Zhang, Yongsheng Qian, Junwei Zeng
Summary: This paper discusses the unique features of autonomous vehicles, the characteristics of actual slope grade on expressways, and the integer requirements for speed update in discrete cellular automata (CA). By introducing variable parameters related to vehicle position and gradient, the continuous deceleration efficiency of uphill is discretized, and the hybrid traffic flow CA model is improved based on the principle of safety distance for slope bottlenecks. The simulation results demonstrate that the improved model can simulate the unique traffic flow phenomenon caused by changing slope conditions. Furthermore, autonomous vehicles can effectively alleviate traffic congestion on upslopes in non-free flow areas.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Physics, Applied
Chengjun Kang, Yongsheng Qian, Junwei Zeng, Xuting Wei
Summary: This paper presents an improved lattice hydrodynamic model considering lane change and investigates the influence of three factors on traffic flow. Theoretical analyses including linear and nonlinear analysis are developed to obtain the model's stability curve and derive equations for traffic flow phase transition and congestion behavior. Numerical simulations show the spatiotemporal evolution characteristics of density wave and energy consumption under disturbance. Results reveal that appropriate lane change behavior, predictive effect, and self-delayed flux integral effect improve traffic stability and reduce energy consumption.
MODERN PHYSICS LETTERS B
(2023)
Article
Chemistry, Analytical
Jiahe Zhang, Yongsheng Qian, Junwei Zeng, Xuting Wei, Haijun Li
Summary: This paper proposes an improved cellular automata model that considers the physical properties of vehicles to investigate the impact of electric vehicles on the traffic flow characteristics of traditional fuel vehicles. Through sensitivity analysis and actual data, the model parameters are quantified to simulate the electric-fuel vehicle mixed traffic flow. The results show that the improved model can reproduce various traffic phenomena and is closer to the measured data compared to other models. The increase of electric vehicle permeability leads to increased flow rate and speed, reduced congestion near critical density, and improved traffic safety. However, at high density, congestion initially decreases, then increases, and then decreases again, with lower safety than homogeneous traffic flow. The speed fluctuation of fuel vehicles is enlarged, and the overall traffic flow speed shows an upward trend. Furthermore, the TIT curve can identify traffic flow state changes, and electric vehicles in high-density mixed flow cause greater disturbance to traffic flow speed and reduce traffic safety. These results provide a basis for further research on electric-fuel vehicle hybrid traffic flow.
MICROCHEMICAL JOURNAL
(2023)
Article
Physics, Multidisciplinary
Futao Zhang, Yongsheng Qian, Junwei Zeng, Dejie Xu, Haijun Li
Summary: This study investigates the stability and safety of traffic flow composed of cooperative adaptive cruise control vehicles and humanly-driven vehicles on slopes. Results show that increasing the penetration of cooperative adaptive cruise control vehicles and uphill gradient can improve traffic flow stability. Furthermore, increasing the penetration of cooperative adaptive cruise control vehicles and implementing lane-changing rules can improve traffic flow safety. The findings of this study are of great importance for future traffic control strategies on mountain roads.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Junwei Zeng, Yongsheng Qian, Wenhai Wang, Dejie Xu, Haijun Li
Summary: This paper proposes a cellular automata model for highway heterogeneous traffic flow mixed with CAVs and HDVs. The model considers the car-following modes and platooning behavior between CAVs and HDVs, and simulates their influence under different densities and penetration rates. The results show that CAVs contribute to improving the passing capacity of heterogeneous traffic flow and have an optimal platoon length.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Environmental Studies
Haining Luo, Yongsheng Qian, Junwei Zeng, Xuting Wei, Xiaoping Guang
Summary: This study researches the urban agglomerations and transportation between them, focusing on the accessibility of the corridor. The study defines narrow and generalized corridor accessibility and analyzes their overall pattern. The spatial distribution and unbalanced trend of inter-provincial logistics connectivity in Gansu province are also discussed. The study finds statistical differences in the accessibility gradient of different regions in China, and a typical corridor effect caused by the layout of transportation lines in Gansu province. The inter-provincial logistics economic relations in Gansu province exhibit significant stratification characteristics and an unbalanced neighbor effect.
