scholarly journals Evaluation of Bus Networks in China: From Topology and Transfer Perspectives

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Hui Zhang ◽  
Peng Zhao ◽  
Yinhai Wang ◽  
Xiangming Yao ◽  
Chengxiang Zhuge
Keyword(s):  
Public Transportation ◽  
Topological Structure ◽  
Small Degree ◽  
Network Evolution ◽  
Transfer Time ◽  
Static Properties ◽  
Random Choice ◽  
The Public ◽  
Bus Network ◽  
Bus Networks

With the development of the public transportation, bus network becomes complicated and hard to evaluate. Transfer time is a vital indicator to evaluate bus network. This paper proposed a method to calculate transfer times using Space P. Four bus networks in China have been studied in this paper. Some static properties based on graph theory and complex theory are used to evaluate bus topological structure. Moreover, a bus network evolution model to reduce transfer time is proposed by adding lines. The adding method includes four types among nodes with random choice, large transfer time, degree, and small degree. The results show that adding lines with nodes of small degree is most effective comparing with the other three types.

scholarly journals A Novel Algorithm of Identification Theory of Complex Network for Public Transportation Network Cascading Failure

2021 ◽  
Vol 15 ◽  
pp. 236-247
Author(s):  
Xu Xu
Keyword(s):  
Complex Network ◽  
Network Theory ◽  
Public Transportation ◽  
Transportation Network ◽  
Network Evolution ◽  
Cascading Failure ◽  
Complex Network Theory ◽  
Node Importance ◽  
Public Transportation Network ◽  
Bus Network

With the development of complex network theory and the gradual application of the traffic field, the problem of cascading failure has caused great attention of researchers. This paper tries to propose a new method based on complex network theory to measure the importance of nodes in the network. Based on complex network theory, this paper first discusses the network evolution mechanism of three main contents, define the importance of nodes in the network, and the design of the network center and the evaluation of the importance of node algorithm. In the end, a critical section identification method considering the failure probability and the failure consequence is designed, and the method for calculating the node importance based on the cascading failure is proposed. Using complex network theory, a quantitative assessment of the center of public transportation network and node importance model is designed. The bus network center, for the study of node importance analysis of bus network survivability has important significance. Help guide the optimization of public transport network service. Improve transport capacity of public transportation system.

Assessing transfer property and reliability of urban bus network based on complex network theory

2018 ◽  
Vol 29 (01) ◽  
pp. 1850004 ◽  
Author(s):  
Hui Zhang ◽  
Cheng-Xiang Zhuge ◽  
Xiang Zhao ◽  
Wen-Bo Song
Keyword(s):  
Betweenness Centrality ◽  
Failure Process ◽  
Clustering Coefficient ◽  
Normal Operation ◽  
Transfer Time ◽  
Transfer Property ◽  
Complex Network Theory ◽  
Urban Bus ◽  
Bus Network ◽  
Bus Networks

Transfer reliability has an important impact on the urban bus network. The proportion of zero and one transfer time is a key indicator to measure the connectivity of bus networks. However, it is hard to calculate the transfer time between nodes because of the complicated network structure. In this paper, the topological structures of urban bus network in Jinan are constructed by space L and space P. A method to calculate transfer times between stations has been proposed by reachable matrix under space P. The result shows that it is efficient to calculate the transfer time between nodes in large networks. In order to test the transfer reliability, a node failure process has been built according to degree, clustering coefficient and betweenness centrality under space L and space P. The results show that the deliberate attack by betweenness centrality under space P is more effective compared with other five attack modes. This research could provide a power tool to find hub stations in bus networks and give a help for traffic manager to guarantee the normal operation of urban bus systems.

Determination of Optimal Public Transportation Routes Using Firefly and Tabu Search Algorithms

2020 ◽  
Vol 4 (5) ◽  
pp. 884-891
Author(s):  
Salwa Salsabila Mansur ◽  
Sri Widowati ◽  
Mahmud Imrona
Keyword(s):  
Tabu Search ◽  
Public Transportation ◽  
Traffic Congestion ◽  
Search Algorithm ◽  
Urban Transportation ◽  
The Public ◽  
Comparison Results ◽  
Congestion Problems ◽  
Transportation Routes

Traffic congestion problems generally caused by the increasing use of private vehicles and public transportations. In order to overcome the situation, the optimization of public transportation’s route is required particularly the urban transportation. In this research, the performance analysis of Firefly and Tabu Search algorithm is conducted to optimize eleven public transportation’s routes in Bandung. This optimization aims to increase the dispersion of public transportation’s route by expanding the scope of route that are crossed by public transportation so that it can reach the entire Bandung city and increase the driver’s income by providing the passengers easier access to public transportations in order to get to their destinations. The optimal route is represented by the route with most roads and highest number of incomes. In this research, the comparison results between the reference route and the public transportation’s optimized route increasing the dispersion of public transportation’s route to 60,58% and increasing the driver’s income to 20,03%.

scholarly journals Supervision of the Default Risk of Online Car-Hailing Platform from an Evolutionary Game Perspective

2021 ◽  
Vol 13 (2) ◽  
pp. 555
Author(s):  
Zhicheng Weng ◽  
Pinliang Luo
Keyword(s):  
Public Transportation ◽  
Default Risk ◽  
Control Mechanism ◽  
Evolutionary Game ◽  
Credit System ◽  
Credit Constraint ◽  
The Public ◽  
Supervision Mode ◽  
Public Transportation System ◽  
Internal Supervision

Online car-hailing services are becoming a key component of the public transportation system, despite there being some certain risks, especially default risk. Turning to the evolutionary game method, this research constructed an evolutionary game model of online car-hailing platform, and then analyzed the equilibrium state of three scenarios (i.e., no supervision, internal supervision of platform enterprises, and external supervision of regulators), followed by carrying out a simulation. The results showed that to realize the evolution stability strategies (ESS) of default risk control, a strong credit constraint or the establishment of a coordinated supervision mode with appropriate intensity are needed. On this basis, this research puts forward the coordinated “platform enterprise + regulator” supervision mode, as well as the following four specific strategies: Promoting the construction of a credit system, strengthening the construction of laws and regulations, establishing a service process control mechanism, and introducing innovative regulatory means.

scholarly journals Public Transportation Hub Location with Stochastic Demand: An Improved Approach Based on Multiple Attribute Group Decision-Making

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Sen Liu ◽  
Zhilan Song ◽  
Shuqi Zhong
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Public Transportation ◽  
Group Decision ◽  
Numerical Study ◽  
Hub Location ◽  
Hub Location Problem ◽  
The Public ◽  
Multiple Attribute ◽  
Qualitative Factors

Urban public transportation hubs are the key nodes of the public transportation system. The location of such hubs is a combinatorial problem. Many factors can affect the decision-making of location, including both quantitative and qualitative factors; however, most current research focuses solely on either the quantitative or the qualitative factors. Little has been done to combine these two approaches. To fulfill this gap in the research, this paper proposes a novel approach to the public transportation hub location problem, which takes both quantitative and qualitative factors into account. In this paper, an improved multiple attribute group decision-making (MAGDM) method based on TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) and deviation is proposed to convert the qualitative factors of each hub into quantitative evaluation values. A location model with stochastic passenger flows is then established based on the above evaluation values. Finally, stochastic programming theory is applied to solve the model and to determine the location result. A numerical study shows that this approach is applicable and effective.

Using GTFS to Calculate Travel Time Savings Potential of Bus Preferential Treatments

2021 ◽  
pp. 036119812110092
Author(s):  
Daniel Arias ◽  
Kara Todd ◽  
Jennifer Krieger ◽  
Spencer Maddox ◽  
Pearse Haley ◽  
...  
Keyword(s):  
Travel Time ◽  
Planning Process ◽  
Operating Cost ◽  
Flow Characteristics ◽  
Travel Time Savings ◽  
Bus Lane ◽  
Time Savings ◽  
Bus Network ◽  
Bus Networks ◽  
Transit Agencies

Dedicated bus lanes and other transit priority treatments are a cost-effective way to improve transit speed and reliability. However, creating a bus lane can be a contentious process; it requires justification to the public and frequently entails competition for federal grants. In addition, more complex bus networks are likely to have unknown locations where transit priority infrastructure would provide high value to riders. This analysis presents a methodology for estimating the value of bus preferential treatments for all segments of a given bus network. It calculates the passenger-weighted travel time savings potential for each inter-stop segment based on schedule padding. The input data, ridership data, and General Transit Feed Specification (GTFS) trip-stop data are universally accessible to transit agencies. This study examines the 2018 Metropolitan Atlanta Rapid Transit Authority (MARTA) bus network and identifies a portion of route 39 on Buford Highway as an example candidate for a bus lane corridor. The results are used to evaluate the value of time savings to passengers, operating cost savings to the agency, and other benefits that would result from implementing bus lanes on Buford Highway. This study does not extend to estimating the cost of transit priority infrastructure or recommending locations based on traffic flow characteristics. However, it does provide a reproducible methodology to estimate the value of transit priority treatments, and it identifies locations with high value, all using data that are readily available to transit agencies. Conducting this analysis provides a foundation for beginning the planning process for transit priority infrastructure.

INOVASI APLIKASI TRANSPORTASIKU DI DINAS PERHUBUNGAN KOTA SURABAYA

Publika ◽  
2021 ◽  
pp. 199-214
Author(s):  
Kholilah Danarratoe Kharima ◽  
Eva Hany Fanida
Keyword(s):  
Data Collection ◽  
Public Service ◽  
Public Transportation ◽  
Community Support ◽  
Information Services ◽  
Ease Of Use ◽  
The Public ◽  
Citizen Support ◽  
Information Reliability

Penggunaan teknologi saat ini dibutuhkan dalam bidang pelayanan publik. Seiring dengan bertambahnya kebutuhan masyarakat maka pemerintah sebagai penyedia layanan publik terus melakukan pembaruan terhadap perubahan pelayanan yang diberikan agar memudahkan masyarakat dalam mendapatkan layanan informasi. Salah satu penerapan e-government oleh Dinas Perhubungan Kota Surabaya adalah inovasi aplikasi TransportasiKu yang bertujuan untuk memberikan layanan informasi terkait lalu lintas dan transportasi umum yang ada di Surabaya secara terkini, praktis, lebih cepat dengan satu aplikasi yang memuat semua informasi melalui genggaman smartphone. Penelitian ini menganalisa menggunakan indikator measuring the quality of e-government from the user prespective (Kozák, 2018) dengan enam indikator yaitu ease of use, content and appearance of the information, reliability, citizen support, trust/security, support in completing forms. Penelitian ini menggunakan jenis penelitian deskriptif dengan metode kualitatif, teknik pengumpulan data wawancara, observasi, dokumentasi dan teknik analisa data yaitu pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan/verifikasi. Hasil penelitian ini menunjukkan bahwa aplikasi ini mendapat respon yang cukup baik dari masyarakat sebagai pengguna karena dapat memberikan layanan informasi yang dibutuhkan namun masih ada juga gangguan dalam penggunaannya. Indikator pertama, kemudahan penggunaan dirasa para pengguna sangat mudah digunakan untuk setiap saat. Indikator kedua, isi dan tampilan informasi yang dihadirkan sederhana dan lengkap. Indikator ketiga keandalan, pada aplikasi ini server yang digunakan masih kurang cukup. Indikator keempat dukungan masyarakat untuk halaman bantuan tidak tersedia hanya ada kolom komentar. Indikator kelima kepercayaan/keamanan, tidak menyertakan informasi pribadi sehingga aman. Indikator keenam dukungan dalam pengisian, formulir aplikasi ini berbasis informasi tanpa perlu pengisian formulir data para penggunanya. Kata Kunci : Pelayanan Publik, Inovasi, E-Government, TransportasiKu   The use of technology is currently needed in the field of public services. Along with the increasing needs of the community, the government as a public service provider continues to make updates to changes in the services provided to make it easier for the public to get information services. One of the applications of e-government by the Surabaya City Department of Transportation is the TransportationKu application innovation which aims to provide information services related to traffic and public transportation in Surabaya in an up-to-date, practical, faster way with one application that contains all information through the grip of a smartphone. This study analyzes using indicators measuring the quality of e-government from the user perspective (Kozák, 2018) with six indicators, namely ease of use, content and appearance of the information, reliability, citizen support, trust/security, support in completing forms. This research uses descriptive research with qualitative methods, interview data collection techniques, observation, documentation and data analysis techniques, namely data collection, data reduction, data presentation and conclusion / verification. The results of this study indicate that this application has received a fairly good response from the public as a user because it can provide the information services needed, but there are still disturbances in its use. The first indicator, ease of use, is felt by users to be very easy to use at any time. The second indicator, the content and display of the information presented is simple and complete. The third indicator is reliability, in this application the server used is still insufficient. The fourth indicator of community support for the help page is not available, only a comment column. The fifth indicator is trust / security, does not include personal information so it is safe. The sixth indicator of support in filling in this application form is information-based without the need to fill out user data forms. Keywords: Public Service, Innovation, E-Government, TransportasiKu

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