bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Influencing Factors in Traffic Accidents of Road Passenger Transport Vehicles
Authors: Dong Guoliang , Jia Hong , Dong Xuan , Xia Haiying 
Published: October 2020

Abstract
Traffic accidents of road passenger transport vehicles will cause great harm and impact on society and families. Analyzing the factors involved in the accident can find the main reason for the accident. This article analyzes the participating factors in accidents based on the data from the annual road traffic accident statistics report. Combining with the results of historical research, the important influencing factors are classified and analyzed, and some key factors of driving safety are summarized. Transport companies should pay attention to the key factors that may lead to accidents and eliminate these hidden dangers.
Quantitative Evaluation Method for Greenhouse Gas Emissions in Asphalt Pavement Construction Stage
Authors: Zhao Dongliang 
Published: October 2020

Abstract
The paper has studied on how to quantitatively evaluate greenhouse gas emissions during asphalt pavement construction. The calculation method is put forward, and the greenhouse gas emissions during the construction of asphalt pavement are obtained. Through calculating examples, the paper got energy saving and emissions reduction effect of warm mix asphalt, at the same time, and drew conclusions of effects of different mixing equipment and transportation equipment on total greenhouse gas emissions. The paper got some good conclusions through the calculation data: the raw material production process accounts for 13% of the total emissions; while asphalt mixture mixing, paving and rolling accounted for 67% of the total emissions, of which about 60% were in the asphalt mixture mixing stage alone. Transport processes account for 20% of total emissions. Compared with warm mix asphalt, heat mix asphalt reduced emissions by 18.2%. The main influencing factor of greenhouse gas emissions in the transportation process is the ratio between diesel consumption of transport equipment in one hundred kilometers and the maximum freight volume of the transportation equipment.
Identification and Test Analysis of Scattered Objects in Traffic Accident Scene
Authors: Ni Yanshu , Chang Qian 
Published: October 2020

Abstract
The scattered objects contain a lot of important information on the scene of traffic accidents. The identification and extraction of relevant characteristic values of the scattered objects on the scene of traffic accidents can provide important basis for solving the collision speed of the vehicles in the accident and provide some evidence for the handling of traffic accidents. In this paper, scattered objects on the scene of traffic accidents are taken as the research object. According to the theoretical model of camera imaging and the characteristics of scattered objects in the accident site, a camera calibration system was proposed by combining with MATALB software. In order to reduce the error caused by background environment in the calibration process, the red calibration object with known structure size was designed to obtain the aerial photography image containing the calibration object. MATLAB was used to extract the calibration object in the image and establish the relationship model between the actual value of the calibration object and the image value. The image processing accuracy was improved by gray transformation, Wiener filter denoising, Laplace sharpening and Canny algorithm edge detection. Taking circular and irregular scattered objects as examples, the simulation test is designed. The proposed calibration method and image processing method are applied to identify the features of scattered objects. The identification results are calculated and compared with the actual measurement results to verify the accuracy of the proposed method and provide a reference for on-site accident treatment.
Numerical simulation of tunnel surrounding rock temperature field
Authors: Wang Yansong , Quan Qunshan , Zhao Yuguo , Zhang Zhongzhe , Jiang Xinghong 
Published: October 2020

Abstract
Severe freezing injury can lead to tunnel encroachment and affect the safety of tunnel operation. The temperature field of surrounding rock and lining can be changed obviously by laying insulation layer on the outside surface of tunnel lining. Taking Wunvfeng tunnel as the engineering background. ANSYS program is used to simulate the surrounding rock temperature field, by comparing the two cases with and without protective layer, the variation law of surrounding rock temperature with time and space is obtained.
Research on the Development of a Traffic Signal Control Model based on Route Travel Time Equilibrium
Authors: Yongqiang Fan 
Published: October 2020

Abstract
In this paper, the problem of how to relieve traffic congestion was studied based on traffic signal control and traffic assignment. A bi-level planning model was built. The upper model was designed to minimize the total system delay time while the lower model was designed to maintain travel time equilibrium along any route chosen among the intra-regional O-D pairs. For the calculation of travel time, adequate consideration was given to the road travel time and the signal delay time caused at intersections. The model was then solved. The simulation results show that with inter-route travel time equilibrium maintained, the delay time and travel time throughout the road network were reduced compared with signal coordination control, with the algorithm validated.
Analysis of research frontier trend in transportation field based on knowledge mapping method
Authors: Chun-xiao Zheng , Yao Lin , Yang Wang , Ya-fei Yan , Xiao He , Ya-juan Zhao 
Published: October 2020

Abstract
Identifying the research frontier trends in the field of transportation can provide researchers with new perspectives and innovation points, and provide information support for decision-making of scientific research planning managers. In this paper, the visual knowledge map analysis method is used to analyze the conference documents published by the Transportation Research Board of the United States from 2015 to 2019, and analyze in detail eight key areas, including aviation, highway, marine transportation, motor carriers, pedestrians and bicyclists, pipelines, public transportation and railroads. The above analysis reveals the research frontier trends of the whole and 8 key sub fields in the field of transportation.
Spatial-temporal Graph Attention Networks for Traffic Flow Forecasting
Authors: Wei Chang , Sheng Jin 
Published: October 2020

Abstract
In order to accurately forecast the road section traffic volume, in this study, a spatial-temporal graph attention network model(GALSTM), which is based on graph attention architecture and long and short memory network(LSTM), is proposed to predict the traffic volume of road section. LSTM network is used to extract the temporal correlation of traffic flow data, and graph attention network is used to get adaptive adjacency matrix at each time step to capture the spatial correlation of road network. The proposed GALSTM model and other frequently-used traffic flow prediction methods were validated by using dataset collected by the California highway administration PeMS. Experimental results on two traffic datasets indicate that GALSTM model achieves the best prediction accuracy in all three evaluation metrics of mean absolute errors, mean absolute percentage errors, and root mean squared errors. GALSTM model can be used as an effective method to forecast the traffic volume of road section.
Simulation for Service Facilities and Passenger Flow Organization Optimization on Railway Terminal
Authors: Wang Mengyao , Shao Chunfu 
Published: October 2020

Abstract
This paper takes railway terminal as research object, considers the diversity of passengers, and uses Anylogic software based on the social force model to build a dynamic simulation model of inbound walking path for complex passenger flow. BeijingWest Railway Station is taken as an example, and equipment utilization balance degree (EUBD), passenger density (PD), average walking time (AWT), passenger queue length (PQL) are selected to evaluate, and optimization suggestions are put forward. Research shows that increasing the number of security inspection equipment, escalators can significantly improve the efficiency of passengers entering the terminal, and the average walking time at the entrance on the northwest and middle side of the second floor is reduced by 73.83%, 65.99% respectively.
Analysis of Civil Aircraft Terrain Avoidance Warning System “Terrain Terrain” Issue Based on QAR Data
Authors: Wang Zuopeng , Song Mingming , Xie Mengtao 
Published: October 2020

Abstract
As an important instruction recording device for civil aircraft, Quick Access Recorder (QAR) records the operating status of various aircraft systems. Therefore, QAR data is an important basis for aircraft safety assessment, maintenance inspection and failure analysis[1][2]. The Terrain Avoidance Warning System (TAWS) provides the crew with a near-ground warning based on the aircraft’s current track information (including the aircraft’s current position, air pressure altitude, ground speed and track angle, etc.) and referring to terrain altitude data, obstacle data and airport data information. Generally, the QAR data can be used to obtain a more accurate judgment when a warning occurs in the TAWS system. Through the quantitative analysis of QAR data, this paper finds out the root cause of over speed approaching terrain warning in the flight process of an aircraft.
Traffic System Optimization Model Based on Travel Demand of Multi-mode Traffic Network
Authors: Yang Xinzheng , Zhou Kang , Peng Xiao 
Published: October 2020

Abstract
The urban multi-mode traffic system, which is composed of rail transit, bus and trolley bus, taxi (including online car Hailing), bicycle and walking, provides the basic guarantee for the daily travel of urban residents. Based on the analysis of urban multi-mode transportation system and network characteristics, the directed network diagram of multi-mode transportation system is constructed. Based on the research methods of related fields at home and abroad, aiming at the characteristics of urban residents’ travel, especially commuting travel, a multi-objective optimization model of urban residents’ travel scheme analysis from the perspective of travel time, travel cost, etc. is constructed. Considering the non-linear characteristics of the model, the multi-objective model is transformed into a single objective model, and the model is solved by CPLEX optimization software. Finally, the applicability and reliability of the model are verified by an example.
Method for optimizing the allocation of the following car schedule based on minimum running time
Authors: Wu Xingyu 
Published: October 2020

Abstract
Rail transit has become one of the most important means of transportation in various countries, which brings huge energy consumption. This paper studies how to allocate the running time of trains between multiple stations to adjust the schedule, to achieve the purpose of energy-saving. Before time allocation between multiple stations, there must be an optimal operation strategy for single-station trains. Studies have shown that under the optimal operation strategy, the longer the time, the smaller the energy consumption, and the remaining redundant time is allocated based on the minimum time. The train operation schedule can reduce energy consumption. In the first phase of this paper, the minimum running time between stations is modeled and solved. Based on this, the existing optimal operation strategy is used to obtain the time and energy consumption relationship curve. In the second phase, the operation redundancy is allocated based on the train energy consumption time relationship model. In terms of time, the optimized energy-saving schedule is obtained to achieve the purpose of energy-saving train.
Evaluation on Optimization of Traffic Organization of Xiangfang Wanda Parking Lot
Authors: Guo Yu 
Published: October 2020

Abstract
With the rapid growth of per capita car ownership, urban parking demand has increased sharply, and the contradiction between parking supply and demand has become increasingly prominent. Part of the reason for this problem is that under the conditions of the existing transportation facilities, the functions of parking facilities are not adequate Play. This paper takes the Xiangfang Wanda underground parking lot in Harbin City as the research object. Through questionnaires and observation records, the parking lot is investigated and analyzed. The parking lot is optimized by qualitative and quantitative methods, and finally based on fuzzy synthesis. Evaluation.
Research on the impact of building blasting vibration on the safety of adjacent subway structures
Authors: Zhang Qingqing , Guo Yangyang , Zhong Huarong , Miao Tong , Wang Xuewei 
Published: October 2020

Abstract
When using controlled blasting technology to demolish a building, the blasting vibration caused by the blasting process may harm the surrounding structure of the blasting area. To study the influence of blasting vibration on the adjacent subway structure, this paper takes the blasting demolition of a building in Chengdu as an example, analyzes the load during the blasting process, establishes the stratum-structure and load-structure finite element models of the subway structure, and simulates the dynamic response process of the structure, and then studies the safety impact of blasting demolition vibration on the adjacent subway structure. Studies have shown that: under the blasting construction scheme in this paper, the impact of blasting vibration on the subway structure is within a safe and controllable range.
Research on the Optimization of external traffic organization of urban passenger station Based on VISSIM Simulation
Authors: Yin Yuexiu , Tian Na , Liu Liqiang 
Published: October 2020

Abstract
In order to ensure the normal operation of the bus terminal, the external traffic organization of the bus terminal is studied. This article takes Xi’an Chengnan passenger station as an example, analyzes its external traffic organization in detail, and finds out the problems in the traffic organization of the passenger station based on the survey results. Then, according to the requirements of the external transportation organization, a scheme for optimizing the external transportation organization was proposed, which was carried out using VISSIM simulation software, and the feasibility of the optimization scheme was verified.
Research on High-Risk Road Sections Identification and Driving Early Warning System in Mountainous Areas Based on Edge-Cloud Integration Technology
Authors: Ting Shang , Jie Tang , Zhenyu Peng , Yanchen Li , Fengxi Xie 
Published: October 2020

Abstract
The operation of mountainous highways is of high risks and the emergency rescue after an accident is of great difficulty. Affected by the mountains, river densities and other topographic features, highways in mountainous areas are characterized by linear complexity, long span bridge and tunnel group, frequent transitions among subgrade-bridge-tunnel, steep slopes, complex setup of interchange, changeable climate and easy occurrence of secondary accident, etc. In the 5G Internet era, the artificial intelligence theories and methods continue to deepen. To fully integrate emerging information technologies such as computer vision and Edge-cloud Integration to establish a high-risk road sections identification and driving early warning system in mountainous areas will help drivers to drive, promote the intellectualization of mountainous highways, and improve the safety of traffic operation management. In this paper, the Edge-cloud Integration technology and the navigation map data, combined with vehicle vision, are used to establish an early traffic warning system. This system collects and shares data through vehicle-mounted terminal and navigation map, uses Matter-element Model to identify and measure risk in cloud, and feeds back the results to vehicle-mounted terminal. If the identification result shows that it is the high-risk sections, combined with the navigation map, there will be a voice warning to ensure driving safety.
Analysis of the Causes and Countermeasures of Chengdu City Road Traffic Noise
Authors: Chen Li Chun , Bo Fang , Xu He , Cai Jie , Li Dong 
Published: October 2020

Abstract
As the pace of urbanization in Chengdu continues to accelerate, the construction of urban roads has also been strengthened.2015 forming a dense urban road network. People often say that the city is too noisy. In fact, from a professional point of view, it is urban road noise. Therefore, under the influence of more and more people from urban road noise, it is necessary to investigate the generation and impact of urban road noise and related prevention measures. This article explains the causes and hazards of Chengdu’s road noise, and puts forward opinions and suggestions on urban road noise in order to provide some research materials for the same type of urban noise prevention.
Comparative Study on Air Transport Network Structure of China, US and EU
Authors: Lu Yan 
Published: October 2020

Abstract
Modern air transport is an important part of national economy, however, the air transport construction of China still lags behind developed countries. Here we construct the air transport networks of China, US and EU by taking cities as nodes and airlines as edges to study their characteristics comparatively. Through observing the statistical results of topological indices included degree, excess average degree and betweenness, we find the less branch airlines and the higher workload of hub cities are the factors restricting the air transport network of China. Then based on the indices sorts, we classify the air transport cities into global hub nodes, regional hub nodes and general nodes to show their different importance in the network. We consider that it is necessary to increase the numbers of global hub nodes and branch airlines, and improve their invulnerable abilities. This paper may provide references for guiding the air transport network construction of China.
Analysis of Beijing-Guangzhou High-Speed Railway Competitiveness Based on Generalized Travel Cost Model
Authors: Zeng Ning , Wang Zhimei 
Published: October 2020

Abstract
After the completion of the Beijing-Guangzhou high-speed railway, this paper studies the market sharing rate of the normal-speed railway, high-speed railway and civil aviation aircraft in the Beijing-Guangzhou line, and the broad travel cost of passengers. Ticket price, speediness, safety, comfort, convenience and punctuality are selected as evaluation indexes. Combined with the improved Logit model, a multiple discrete choice model of passenger travel is established. Then this paper investigates the travel intention of passengers and the actual data needed for model indicators. At last, the share rate of various modes of transportation in the Beijing-Guangzhou under the circumstances of different distances and different time values is predicted, as well as the impact of air fares on the competitiveness of high-speed rail products.
The Situation and Challenge of China’s Legal Inspection System of Ships
Authors: Song Gao 
Published: October 2020

Abstract
Ship inspection is a highly professional and technical administrative permission work, which is the first link to ensure the safety of navigation and operation of the ship. Under the new situation of powerful transportation and high-quality development, we need to reexamine the development connotation of China‘s legal inspection system, analyze the problems existing in the existing ship inspection and inspection management system, clarify the challenges and opportunities faced by the ship inspection system, initially put forward effective solutions, and provide necessary decision-making reference for the standardized construction of ship inspection management.
Correlation analysis between OD demand and traffic flow in urban traffic network
Authors: Luo Xiao , Li Juan 
Published: October 2020

Abstract
Traffic congestion has become a serious problem in urban area. It may be alleviated by effectively controlling the external conditions affecting the traffic networks. In this paper, various traffic assignment methods are employed to analyze the correlation between OD demand and traffic flow in urban traffic network. To explore the effects of external conditions, three algorithms including all or nothing algorithm, Dial algorithm and MSA algorithm are applied for traffic networks. We study the sensitivity of traffic assignment methods with variation of external conditions (e.g. the number of road sections, the number of intermediate nodes, the number of OD pairs). The comparison results show that the degree of influences depends on OD demands. Additionally, the traffic congestion can be alleviated by removing the node or sections of traffic networks, which can be used to develop traffic management strategies.
Measurement of Economic Contribution of Small and Medium Airports and Its Enlightenment to Region Economic Development
Authors: He Hang , He Xiao , Han Zhu , Wang Shuai 
Published: October 2020

Abstract
Based on the study of the influence mechanism of airports on regional economic development, this paper empirically analyzes the interaction between small and medium-sized airports and regional economic development by using the data of Mianyang Nanjiao airport from 2002 to 2017, in order to provide measurement methods and theoretical support for local governments to encourage and promote the development of local airports. In the part of empirical analysis, firstly, this paper constructs the air transport scale index system of small and medium-sized airports and the evaluation index system of regional economic development. Then, the entropy method is selected to select the key factors of the airport, so as to obtain the airport transportation capacity equivalent, and the principal component analysis method is used to extract the high load index of the regional economic system. Finally, this paper establishes the SVAR model of airport transportation capacity and regional economic relationship, carries out structural impulse response and variance decomposition analysis, draws the conclusion that small and medium-sized airports have a positive impact on regional economic development, but not significant, and analyzes the reasons.
Evaluation of freight logistics delayed efficiency in China
Authors: Donglong Wu , Xiangqian Wang , Dan Xia 
Published: October 2020

Abstract
In order to improve the development quality of China’s freight logistics, improve the efficiency of resource utilization, the article uses ARIMA-SVR-DEA method to forecast the freight logistics in our country delayed data and calculate the delayed freight logistics efficiency, and the results show that the unreasonable utilization of resources is the reason for the inefficiency of freight logistics, which provides a reference for the development of freight logistics industry.