scholarly journals Conformity Analysis of GTFS Routes and Bus Trajectories

2019 ◽  
Author(s):  
Andreza Raquel M. Queiroz ◽  
Veruska B. Santos ◽  
Dimas C. Nascimento ◽  
Carlos Eduardo S. Pires
Keyword(s):  
Data Analysis ◽  
Public Transportation ◽  
Data Format ◽  
The Public ◽  
Standard Data ◽  
Transportation Agencies

General Transit Feed Specification (GTFS) is a standard data format generated by transportation agencies of most of the cities worldwide to provide scheduled data of their services. Despite being the standard in the public transportation field, applications that consume GTFS data may face two problems: outdated versions, since some transportation agencies do not provide GTFS in the same frequency that transit changes; and discrepancy with positioning data sent by the buses. This paper provides a conformity analysis of GTFS routes and bus positioning data from multiple cities. We have found inconsistencies related to GPS route labels and GTFS routes. We also classify the conformity of bus trajectories and enumerate the main inconsistencies found in data analysis.

Map-Matching Algorithm for Applications in Multimodal Transportation Network Modeling

2015 ◽  
Vol 2537 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Kenneth Perrine ◽  
Alireza Khani ◽  
Natalia Ruiz-Juri
Keyword(s):  
Public Transportation ◽  
Transportation Network ◽  
Data Representation ◽  
Transportation Systems ◽  
Data Sets ◽  
The Public ◽  
Standard Data ◽  
Planning Models ◽  
Transit Agencies ◽  
Public Transportation Systems

Generalized Transit Feed Specification (GTFS) files have gained wide acceptance by transit agencies, which now provide them for most major metropolitan areas. The public availability GTFSs combined with the convenience of presenting a standard data representation has promoted the development of numerous applications for their use. Whereas most of these tools are focused on the analysis and utilization of public transportation systems, GTFS data sets are also extremely relevant for the development of multimodal planning models. The use of GTFS data for integrated modeling requires creating a graph of the public transportation network that is consistent with the roadway network. The former is not trivial, given limitations of networks often used for regional planning models and the complexity of the roadway system. A proposed open-source algorithm matches GTFS geographic information to existing planning networks and is also relevant for real-time in-field applications. The methodology is based on maintaining a set of candidate paths connecting successive geographic points. Examples of implementations using traditional planning networks and a network built from crowdsourced OpenStreetMap data are presented. The versatility of the methodology is also demonstrated by using it for matching GPS points from a navigation system. Experimental results suggest that this approach is highly successful even when the underlying roadway network is not complete. The proposed methodology is a promising step toward using novel and inexpensive data sources to facilitate and eventually transform the way that transportation models are built and validated.

scholarly journals ASSESSING URBAN PUBLIC TRANSPORTATION INSTITUTIONAL FRAMEWORK IN KLANG VALLEY

2018 ◽  
Vol 16 (7) ◽  
Author(s):  
Noor Ashikin Abd Rahman ◽  
Yusfida Ayu Abdullah ◽  
Na'asah Nasrudin ◽  
Zaharah Mohd Yusoff
Keyword(s):  
Public Transport ◽  
Public Transportation ◽  
Institutional Framework ◽  
Urban Mobility ◽  
The Public ◽  
Public Transport System ◽  
Urban Public Transport ◽  
Klang Valley ◽  
Transportation Agencies

This study has a special interest in urban public transportation institutional framework in the Klang Valley, Malaysia. The notions for the topic were developed from issues regarding institutional framework in delivering urban public transportation. Although the current urban public transport in Klang Valley has improved, there are still issues concerning the institutional framework. To date, there is no single regulator or agency with the express and overriding responsibilities for strategic management of the public transport system in KlangValley. The purpose of this study is therefore to assess the current urban public transportation institutional and governance framework especially towards urban mobility. To achieve this, the study employs the content analysis and case study method, using the purposive sampling approach for expert interviews in gaining the data from participants of related agencies. It examines the importance of public transportation frameworks and present status of current transport development, as well as the roles of urban transportation agencies involved in delivering urban public transport. Results demonstrated that urban public transportation is delivered through multiple agencies with separate roles, not counting the inconsistency of various policies. Hence, the expectation of this study is to suggest practical approaches to improve the current institutional framework of urban public transportation.

scholarly journals Implementasi Kebijakan Tarif Angkutan Umum Jenis Mobil Penumpang Umum di Kota Semarang

2018 ◽  
Vol 6 (1) ◽  
pp. 16-21
Author(s):  
Aisyah Rizqi Ismaniar
Keyword(s):  
Data Analysis ◽  
Qualitative Study ◽  
Public Transportation ◽  
Passenger Transport ◽  
The Public ◽  
Data Analysis Technique ◽  
Analysis Technique ◽  
The City ◽  
Descriptive Qualitative

Penelitian ini bertujuan untuk melihat implementasi kebijakan tarif tahun 2014 angkutan umum jenis mikrolet di Kota Semarang. Jenis penelitian ini adalah kualitatif. Data dikumpulkan melalui observasi, wawancara dan dokumentasi. Teknik analisis data adalah deskriptif kualitatif. Hasil menunjukkan bahwa implementasi kebijakan tarif tahun 2014 digunakan oleh masyarakat karena berawak dari kegagalan kebijakan tarif tahun 2015. Implementasi kebijakan tarif tahun 2014 belum sepenuhnya ditaati oleh awak angkutan penumpang umum  karena masih terdapat satu trayek yaitu trayek C.8 yang memberikan tarif tinggi kepada penumpang. Pengawasan tarif dan pengawasan pengoperasian mikrolet belum berjalan dengan baik karena  pengawasan hanya  dilakukan oleh LP2K dan sebatas pengawasan tarif. Kesimpulan dalam penelitian ini adalah implementasi kebijakan tarif tahun 2014 belum ditaati oleh seluruh awak angkutan penumpang umum di Kota Semarang. Pengawasan hanya dilakukan oleh LP2K sedangkan Dishub dan Organda tidak melakukan pengawasan sehingga menimbulkan beberapa masalah seperti pelanggaran peremajaan dan  kecurangan paguyuban.   The porpuse of this study is to see the implementation of the public transportation fare policy in  2014 of microbus in Semarang city. This type of research is qualitative study. The data are collected through observation, interviews and documentation. The data analysis technique is descriptive qualitative. The results of this study that the implementation of the fare policy in 2014 is used by the public because of the failure manned fare policy in 2015. The implementation of the fare policy in 2014 has not been fully complied with by the crew of public passenger transport as there are fare that fare C.8 are on high fare to passengers. Supervision and monitoring the operation of the minibus fare has not gone well because the supervision is only done by LP2K fare and limited supervision. The conclusion of this study is the implementation of the fare policy in 2014 has not adhered to by the entire crew of public passenger transport in the city of Semarang. Supervision is only done by the Transportation Department and Organda LP2K while not conducting inspections causing some problems such violations and cheating community rejuvenation.

scholarly journals Evaluating and Ranking of Travel Mode in Metropolitan a Transportation Approach

2018 ◽  
Vol 4 (6) ◽  
pp. 1303 ◽  
Author(s):  
Saeid Shafiei ◽  
Raeoof Vaelizadeh ◽  
Frederic Bertrand ◽  
Manouchehr Ansari
Keyword(s):  
Data Analysis ◽  
Public Transportation ◽  
Quantitative Research ◽  
Mode Selection ◽  
Point Of View ◽  
Environmental Costs ◽  
Accurate Data ◽  
Travel Mode ◽  
The Public ◽  
Significant Growth

Nowadays metropolitans' planners faced with a significant growth of private cars and consequently, creation a lot of environmental costs. To tackle the problem, the planners should find the best suitable way with due to the stakeholders’ views and other affected criteria to encourage the passengers for using the public transportation instead of their own cars. This paper has been performed to identifying and verifying main criteria affecting travel mode selection; getting different point of views; identifying the most effective travel mode from stakeholders' point of view and finally evaluating and ranking of travel modes in in Tehran metropolis. This study is a quantitative research based on survey and two structured questionnaires for passengers, experts and managers. In order to have an accurate data analysis, AHP as an MCDM models has been used to evaluate and ranking of travel modes. By identifying main criteria (variables) affecting travel mode selection, also collecting and analyzing stakeholders’ different points of views, the weight of each related criterion has been identified and determined and consequently the priority of effective travel mode in Tehran metropolis has been achieved. Finally, the managerial report has been prepared.

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.

scholarly journals BIM Interoperability Analyses in Structure Design

CivilEng ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 174-192
Author(s):  
Alcinia Zita Sampaio ◽  
Augusto Martins Gomes
Keyword(s):  
Data Transfer ◽  
Structure Design ◽  
Data Format ◽  
Industry Foundation Classes ◽  
Standard Data ◽  
Transfer Processes ◽  
Building Information ◽  
Modeling Software ◽  
Efficient Level ◽  
Alternative Solutions

The building information modelling (BIM) methodology supports collaborative works, based on the centralization of all information in a federated BIM model and on an efficient level of interoperability between BIM-based platforms. Concerning the structure design, the interoperability capacity of the most used software presents limitations that must be identified and alternative solutions must be proposed. This study analyzes the process of transfer of structure models between modeling and structure analysis tools. Distinct building cases were performed in order to recognize the type of limitations verified in the transfer processes concerning two-way data flow between several software. The study involves the modeling software ArchiCAD 2020, Revit 2020, and AECOsim 2019 and the structure analyzes tools SAP 2020, Robot 2020, and ETABS 22020. The transfer processes are realized in two ways: using the native data format; using a universal standard data transfer, the Industry Foundation Classes (IFC) format. The level of maturity of BIM in structure design is still relatively low, caused essentially by interoperability problems, but despite the limitations detected, this study shows throughout the development of several building case, that the methodology has clear advantages in the development of the structure project.

Sign in / Sign up

Export Citation Format

Share Document