scholarly journals Corridor Detection from Large GPS Trajectories Datasets

2020 ◽  
Vol 10 (14) ◽  
pp. 5003
Author(s):  
Claudia Cavallaro ◽  
Jordi Vitrià
Keyword(s):  
Public Transportation ◽  
Geographical Location ◽  
Transportation Systems ◽  
Minimum Length ◽  
Minimum Number ◽  
Gps Trajectories ◽  
Route Recommendation ◽  
Public Transportation Systems ◽  
New Applications ◽  
The City

Given the widespread use of mobile devices that track their geographical location, it has become increasingly easy to acquire information related to users’ trips in real time. This availability has triggered several studies based on user’s position, such as the analysis of flows of people in cities, and also new applications, such as route recommendation systems. Given a dataset of geographical trajectories in an urban metropolitan area, we propose a new algorithm to detect corridors. Corridors can be defined as geographical paths, with a minimum length, that are commonly traversed by a minimum number of different users. We propose an efficient strategy based on the Apriori algorithm to extract frequent trajectory patterns from the geo-spatial dataset. By discretizing the data and adapting the roles of itemsets and baskets of this algorithm to our context, we find the longest corridors formed by cells shared by a minimum number of trajectories. After that, we refine the results obtained with a subsequent filtering step, by using a Radius Neighbors Graph. To illustrate the algorithm, the GeoLife dataset is analyzed by following the proposed method. Our approach is relevant for transportation analytics because it is the base to detect lacking lines in public transportation systems and also to recommend to private users which route to take when moving from one part of the city to another on the basis of behavior of the users who provided their logs.

Planning Innovative Public Transportation Systems for Arlington, Texas

1996 ◽  
Vol 1521 (1) ◽  
pp. 20-28
Author(s):  
David A. Faria ◽  
Wilma Smith
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
General Will ◽  
Transportation Services ◽  
The Public ◽  
Niche Concept ◽  
The Individual ◽  
Alternative Community ◽  
Public Transportation Systems ◽  
The City

A study was done to develop various innovative transportation strategies to address the changing travel needs of Arlington, Texas, residents. The study was guided by the Arlington Community Transportation Study Committee. It developed the transportation niche concept: the ability to use alternative community transportation services to address specific needs of the community in different parts of the city. Five high-priority niches were studied in detail. The success of the individual niches in particular and the integrated transportation system in general will rely heavily on the cooperation and coordination between the public and the private sectors and the acceptance of the niche concept by the general public.

scholarly journals “Unparking”: How can Smart Mobility Reduce Parking Demand in Our Cities to the Minimum? (Beirut Case Study)

Smart Cities ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 172-185
Author(s):  
Adib Haydar
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
Decision Makers ◽  
Demand And Supply ◽  
Mobility System ◽  
Smart Mobility ◽  
Public Transportation Systems ◽  
Parking Demand ◽  
The City

Beirut is a car-dependent city, with 80% of Beirut citizens using their private cars to move across the city (the rate of car ownership is higher than regional and global benchmarks: 627 cars/1000 in Beirut, 550/1000 in Dubai and 170/1000 in Singapore). This reality causes two related impacts: an increased parking demand and decreased public transportation usage. Furthermore, in order to discuss these aspects, our study addresses the following question: How can the municipality’s interventions and mobility system reforms, such as smart public transportation systems and shareable mobility, reduce parking demand? As our methodology, it consists of three sections: (1) determine Beirut's parking problems by estimating parking demand and supply; (2) assess the potential effects of Beirut municipality policies in comparison to international experiences; and (3) evaluate the potential impacts of the smart public transportation system and shareable mobility in reducing parking demand. This paper studies parking growth in developing countries, such as Lebanon, and can help planners, decision-makers, and the Beirut municipality to make more informed decisions about parking policies, and to meet growing parking demand by introducing smart interventions that have high local potentials.

scholarly journals Effects of Free-Floating Shared Bicycles on Urban Public Transportation

2019 ◽  
Vol 8 (8) ◽  
pp. 323 ◽  
Author(s):  
Cao ◽  
Ma ◽  
Huang ◽  
Lü ◽  
Chen
Keyword(s):  
Public Transportation ◽  
Sharing Economy ◽  
Transportation Systems ◽  
Problem Model ◽  
Last Mile ◽  
Service Areas ◽  
Public Transportation System ◽  
Shared Bicycle ◽  
Public Transportation Systems ◽  
The City

As a product of the development of the Internet and the sharing economy, shared bicycles are beneficial in solving the last mile problem of public transportation for urban residents and expanding the service area of urban public transportation to a certain extent. This paper analyses the spatial-temporal characteristics of shared bicycles in the city of Beijing by using kernel density estimation and statistical analysis methods. The maximum coverage location problem model is used to quantify the effects of shared bicycles on the subway and bus urban public transportation systems. The analysis results are of great importance to identify the effects of shared bicycle usage on an urban bus public transportation system from the view of space-time. The results show that (1) shared bicycles are largely located within 1.5 km from the subway station and 500 meters from the bus stations; (2) the number of the shared bicycle usage changes along with the distance from the subway and bus stations; (3) subway and bus stations are divided into six types based on the sink-source characteristics of shared bicycles; (4) the service areas of subway and bus stations are expanded by approximately 2.34 and 1.33 times, respectively, after the implementation of shared bicycles.

scholarly journals The strategy of sustainable public transportation system in the city of Rzeszów in the frame of Eastern Poland 2014-2020 Operational Programme

2017 ◽  
Vol 18 (6) ◽  
pp. 32-35
Author(s):  
Anna Pająk ◽  
Artur Orzeł ◽  
Róża Stepaniuk
Keyword(s):  
Public Transportation ◽  
Transportation System ◽  
Transportation Systems ◽  
Broad Perspective ◽  
Investment Projects ◽  
Financial Perspective ◽  
Complex Projects ◽  
Public Transportation System ◽  
Public Transportation Systems ◽  
The City

In the frame of Action 2.1. “Sustainable public transportation” of the II Priority Axis of the Eastern Poland 2014-2020 Operational Programme five viovodeships submitted 14 applications of investment projects of the total value of 2,1 billion PLN. The main aim of the Programme is to support complex projects of ecological integrated public transportation systems in the broad perspective of sustainable development. Three applications were submitted by the City of Rzeszów. The main aims of the projects are: the development of Intelligent Public Transportation System in Rzeszów, creation of the Communication Centre in Rzeszów as well as bus fleet modernization. The article refers to the characteristics of the projects in the context of current financial perspective of Eastern Poland Operational Programme.

Accessibility, Affordability, and Addressing Informal Services in Bus Reform: Lessons from Bogotá, Colombia

2017 ◽  
Vol 2634 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Camila Rodriguez ◽  
Tatiana Peralta-Quirós ◽  
Luis A. Guzman ◽  
Sebastian A. Cárdenas Reyes
Keyword(s):  
Public Transportation ◽  
Large Scale ◽  
Developing World ◽  
Public Transit ◽  
Transportation Systems ◽  
Reform Process ◽  
Public Transport System ◽  
Bus Services ◽  
Public Transportation Systems ◽  
The City

Many cities in the developing world are reforming transit by formalizing bus services to capture user and nonuser benefits. A forerunner in transit reform, the city of Bogotá, Colombia, first implemented the TransMilenio bus rapid transit (BRT) system and then more recently undertook a large-scale initiative to formalize and regulate traditional urban buses in the city. This integrated public transport system [Sistema Integrado de Transporte Público (SITP)] is transforming Bogotá’s traditional urban bus system into a regulated, concessionary system with restructured bus routes that integrates operations, fares, and infrastructure with the TransMilenio BRT. An investigation was conducted to determine whether the SITP has increased affordability and employment accessibility for public transit users in Bogotá. Results revealed that most accessibility improvements resulted from the recent expansion (and significantly higher speeds) of TransMilenio rather than the SITP. Results of an analysis conducted with budget constraints to determine affordable accessibility indicated that employment accessibility was reduced overall; however, the new integrated fare increased accessibility over traditional buses, especially on the periphery and in southern areas of the city, as a result of reduced transfer costs. Overall, results partly explain the lack of enthusiasm for the bus reform process on the part of public transit users and the political discomfort that becomes apparent when embarking on this process in developing-world cities. Also, more incremental, flexible reform might be crafted for public transportation systems that are dominated by informal services.

scholarly journals Virus Transmission Risk in Urban Rail Systems: Microscopic Simulation-Based Analysis of Spatio-Temporal Characteristics

2021 ◽  
pp. 036119812110101
Author(s):  
Jiali Zhou ◽  
Haris N. Koutsopoulos
Keyword(s):  
Public Transportation ◽  
Virus Transmission ◽  
Flow Characteristics ◽  
Transportation Systems ◽  
Transmission Risk ◽  
Microscopic Simulation ◽  
Spatial And Temporal Patterns ◽  
Subway System ◽  
Public Transportation Systems ◽  
The Impact

The transmission risk of airborne diseases in public transportation systems is a concern. This paper proposes a modified Wells-Riley model for risk analysis in public transportation systems to capture the passenger flow characteristics, including spatial and temporal patterns, in the number of boarding and alighting passengers, and in number of infectors. The model is used to assess overall risk as a function of origin–destination flows, actual operations, and factors such as mask-wearing and ventilation. The model is integrated with a microscopic simulation model of subway operations (SimMETRO). Using actual data from a subway system, a case study explores the impact of different factors on transmission risk, including mask-wearing, ventilation rates, infectiousness levels of disease, and carrier rates. In general, mask-wearing and ventilation are effective under various demand levels, infectiousness levels, and carrier rates. Mask-wearing is more effective in mitigating risks. Impacts from operations and service frequency are also evaluated, emphasizing the importance of maintaining reliable, frequent operations in lowering transmission risks. Risk spatial patterns are also explored, highlighting locations of higher risk.

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