scholarly journals Masivo: Parallel Simulation Model Based on OpenCL for Massive Public Transportation Systems’ Routes

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1501
Author(s):  
Juan Ruiz-Rosero ◽  
Gustavo Ramirez-Gonzalez ◽  
Rahul Khanna
Keyword(s):  
Simulation Model ◽  
Transport System ◽  
Public Transport ◽  
Public Transportation ◽  
High Performance ◽  
Simulation Models ◽  
Transportation Systems ◽  
Transport Systems ◽  
Public Transport System ◽  
Speed Up

There is a large number of tools for the simulation of traffic and routes in public transport systems. These use different simulation models (macroscopic, microscopic, and mesoscopic). Unfortunately, these simulation tools are limited when simulating a complete public transport system, which includes all its buses and routes (up to 270 for the London Underground). The processing times for these type of simulations increase in an unmanageable way since all the relevant variables that are required to simulate consistently and reliably the system behavior must be included. In this paper, we present a new simulation model for public transport routes’ simulation called Masivo. It runs the public transport stops’ operations in OpenCL work items concurrently, using a multi-core high performance platform. The performance results of Masivo show a speed-up factor of 10.2 compared with the simulator model running with one compute unit and a speed-up factor of 278 times faster than the validation simulator. The real-time factor achieved was 3050 times faster than the 10 h simulated duration, for a public transport system of 300 stops, 2400 buses, and 456,997 passengers.

Numerical Analysis of Tunnel Support System at Pune Metro

2021 ◽  
Vol 9 (VII) ◽  
pp. 3681-3687
Author(s):  
Saurabh B. Yele
Keyword(s):  
Transport System ◽  
Support System ◽  
Public Transport ◽  
Transportation Systems ◽  
Vital Role ◽  
Industrial Growth ◽  
Rapid Urbanization ◽  
Tunnel Support ◽  
Underground Tunnel ◽  
Public Transport System

Pune has witnessed enormous industrial growth, rapid urbanization in the recent past and has put the city's travel infrastructure to stress. Being a densely populated area, Pune's traffic needs cannot be met by road-based transportation systems and additional flyovers. Considering this, the Pune Metro project a strong public transport system partly elevated, and partly underground Line 1 and the completely elevated Line 2 has been discussed and undertaken by Maha Metro Rail Corporation. With the rise in demand, the responsibility for a safe and efficient public transport system also increases hence proper planning, designing, and execution play a vital role. The underground tunnel stretch of the Pune Metro Line 1 project is carried out by TBM and by segmental lining as a support system. By geotechnical parameters and FEM, RS2 software author analyses the ground behaviour and support system and conveys a basic understanding of ground behaviour and results in guidelines for designing the underground tunnel.

scholarly journals Data-Driven Analysis of Bicycle Sharing Systems as Public Transport Systems Based on a Trip Index Classification

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4315
Author(s):  
Mark Richard Wilby ◽  
Juan José Vinagre Díaz ◽  
Rubén Fernández Pozo ◽  
Ana Belén Rodríguez González ◽  
José Manuel Vassallo ◽  
...  
Keyword(s):  
Transport System ◽  
Public Transport ◽  
Transport Systems ◽  
Mathematical Framework ◽  
The Public ◽  
Traffic Lights ◽  
Public Transport System ◽  
Specific Analysis ◽  
Last Mile

Bicycle Sharing Systems (BSSs) are exponentially increasing in the urban mobility sector. They are traditionally conceived as a last-mile complement to the public transport system. In this paper, we demonstrate that BSSs can be seen as a public transport system in their own right. To do so, we build a mathematical framework for the classification of BSS trips. Using trajectory information, we create the trip index, which characterizes the intrinsic purpose of the use of BSS as transport or leisure. The construction of the trip index required a specific analysis of the BSS shortest path, which cannot be directly calculated from the topology of the network given that cyclists can find shortcuts through traffic lights, pedestrian crossings, etc. to reduce the overall traveled distance. Adding a layer of complication to the problem, these shortcuts have a non-trivial existence in terms of being intermittent, or short lived. We applied the proposed methodology to empirical data from BiciMAD, the public BSS in Madrid (Spain). The obtained results show that the trip index correctly determines transport and leisure categories, which exhibit distinct statistical and operational features. Finally, we inferred the underlying BSS public transport network and show the fundamental trajectories traveled by users. Based on this analysis, we conclude that 90.60% of BiciMAD’s use fall in the category of transport, which demonstrates our first statement.

scholarly journals Travel mode choice preferences of urban commuters in Kuching City, Malaysia based on stated preference data

2018 ◽  
Vol 181 ◽  
pp. 02007
Author(s):  
Resdiansyah
Keyword(s):  
Travel Time ◽  
Public Transport ◽  
Public Transportation ◽  
Stated Preference ◽  
Mode Choice ◽  
Travel Behaviour ◽  
Transportation Systems ◽  
Choice Modelling ◽  
Public Transport System ◽  
Bus Services

One aspect of Kuching City that has not progressed in tandem with the rest of the city is the public transport system, which is relatively old and almost non-existent. Transport and City planners seem to be at their wit’s end in coming up with satisfactory solutions to Kuching’s public transportation woes. In current situation, many proposals, but none have proven workable. As a result, representative buses remain a rare sight on Kuching city’s roads. To achieve a sustainable public transport industry, the old buses need to be regenerated and replaced with modern buses. The objectives of the intended study are to explore the consumer’s travel behaviour by employing mode choice modelling. Consequently, a study was conducted in Kuching City Area by using stated preference technique, analysed and compiled by using SPSS.17 multiple linear regressions analysis. In this context, discrete choice analysis was used to examine the relationship between independent variables (travel time, waiting time, fares and comfort) and dependent variables (choice of respondent whether to consume old bus or choose new bus services). A total of 2000 respondents were interviewed. The findings showed that for the trips purpose, fares and comfortability were the primary factors that reflected the decision or behaviour of the respondents asked. It was discovered that there is a significant relationship between the choice of the respondents and comfortability. It also appeared that longer travel time did not affect for the traveler’s choice at this stage. Hence, the study suggests that the local authority and the bus operators should establish a “quality partnership” and working together in order to come out with a much better and appropriate transport policy and schemes for the existing public transportation systems, especially bus services.

scholarly journals Challenges of Low Carbon Public Transport Systems in the Arabian Gulf City: Case of Muscat, Oman

2021 ◽  
pp. 117-125
Author(s):  
Elnazir Ramadan
Keyword(s):  
Energy Consumption ◽  
Transport System ◽  
Public Transport ◽  
Arabian Gulf ◽  
Sustainable Transportation ◽  
Transport Systems ◽  
Mass Transportation ◽  
Low Carbon ◽  
Gulf Region ◽  
Public Transport System

The Arabian Gulf cities are growing. The gulf cooperation council states (GCCs) are among the richest and most urbanized in the world. As a major focus on sustainable development of cities, sustainable transportation acts to diminish the city’s energy consumption by providing a public transport system that has greater ecological obligation and societal justice. The study’s significance is to figure out the challenges in the sector of public transport in the city of Muscat. The wide spread of mass transportation plays a significant role in reducing the exhaustion of energy. Also, it contributes to make a better living experience.  Provision of sustainable public transport will prevent the increasing number of motor cars and equally accompanied environmental pollution and traffic congestion. The study is based on an in-depth quantitative and qualitative research method to explore the hindrances that are encountered in the way of building sustainable infrastructure of public transport. The findings of the study revealed that public transport system face real challenges in Gulf region, particularly in Muscat. It indicated that for the well-being of Gulf society, the use of public transportation was encouraged and most of the population have their own cars. In addition to it, cultural and social preservations are raised, mainly by the people that act against the operation of public transport system. Due to the substantial effect of clean  and  sustainable transportation  on energy consumption levels, recent years have been marked with a notable trend  towards  sustainable and  low carbon systems, particularly the mass  transportation ones.

scholarly journals Building and Publishing Fundamental Transit Data for Regional Public Transportation Provided by Municipalities

2020 ◽  
Vol 308 ◽  
pp. 01005 ◽  
Author(s):  
Chinasa Sueyoshi ◽  
Hideya Takagi ◽  
Yoshihiro Yasutake ◽  
Kentaro Inenaga
Keyword(s):  
Public Transport ◽  
Public Transportation ◽  
Transportation Systems ◽  
Transport Systems ◽  
The Internet ◽  
Local Resident ◽  
Lack Of Information ◽  
Residential Population ◽  
Transportation Routes ◽  
Route Search

Public transportation is becoming increasingly important in regions where the residential population is decreasing. In Japan, many regional transportation systems are experiencing financial challenges. It is difficult for fixed-route transportation systems to operate at a surplus when serving only local resident users. We consider one of the problems of these regional public transport systems to be the lack of information on the Internet about regional public transportation routes. For people who are unfamiliar with the region, such as inbound tourists, there is no easy way to conduct a route search. In this paper, we describe our efforts to build a fundamental database of the regional public transportation provided by municipalities and to publish this data for those conducting route searches on the Internet. Specifically, we converted fundamental data regarding regional public transportation to the feed of the General Transit Feed Specification-Japan (GTFS-JP), which is based on the Google GTFS, as formulated by the Ministry of Land in Japan. Then we encouraged municipalities to publish these transit data to enable route searches on Google Maps and other domestic-content providers.

Motion Sickness

2021 ◽  
pp. 97-113
Author(s):  
Debasish Roy Chowdhury ◽  
John Keane
Keyword(s):  
Social Networks ◽  
Motion Sickness ◽  
Transport System ◽  
Public Transport ◽  
Transport Systems ◽  
Life Strategies ◽  
Public Transport System ◽  
Rail Network ◽  
Government Oversight ◽  
Social Inequities

This chapter focuses on India’s public transport system. If cities are democratic laboratories that nurture free and equal motion, then India fails the test every day. In Mumbai, for example, up to sixteen people can find themselves packed into a one-square-metre space inside a carriage during peak hours as Indian Railways fails to provide enough trains and coaches to the financial capital’s arterial rail network. Travelling like animals, risking their lives for livelihood, has been the lot of Mumbai’s daily commuters for as long as they can remember. Away from the cities, where 70 per cent of India lives, the picture is even bleaker, with virtually no state-run public transport system—buses or trains. The daily indignities and inconveniences of travelling prevents citizens from freely accessing goods, services, and social networks that are key to the pursuit of their chosen life strategies. By hindering everyday mobility, hazardous and insufficient transport options have the anti-democratic effect of perpetuating social inequities and dispersing communities into isolated silos that prevent collective assembly, deliberation, and action. Other than dilapidated or non-existent public transport systems, elitist policies, and poor government oversight hinder movement—and democracy—in various other ways.

scholarly journals Exploring the Interoperability of Public Transport Systems for Sustainable Mobility in Developing Cities: Lessons from Johannesburg Metropolitan City, South Africa

2020 ◽  
Vol 12 (15) ◽  
pp. 5875 ◽  
Author(s):  
Trynos Gumbo ◽  
Thembani Moyo
Keyword(s):  
Public Transport ◽  
Public Transportation ◽  
Transportation Systems ◽  
The State ◽  
Transport Systems ◽  
Moran's I ◽  
Transit Systems ◽  
The Public ◽  
Metropolitan City ◽  
Local Moran’S I Index

There have been growing concerns with regards to the state public transportation systems, particularly in the cities of developing countries. Chief among these concerns has been the lack of well-coordinated, efficient, and reliable transportation systems. The city of Johannesburg, just like any other fast-growing municipality in developing and emerging economies, has not been spared with regards to incessant public transport challenges. Consequently, there have been collective efforts from both public and private stakeholders to invest immensely in both innovative rail and road transport systems in the past decade. This article sought to achieve twin objectives. First, the work identified the state of connectivity between the rapid rail transportation and rapid bus transit systems based on Geoweb 2.0 data. Second, the work visualized the level of connectivity between these two modes to develop and formulate policy frameworks in integrating public transit systems in cities of the developing world, learning from the metropolitan city of Johannesburg. A mixed-method approach consisting of spatial and quantitative aspects was used to examine the state of connectedness and the promotion of access and mobility between the two modes. The local Moran’s I index was used to compute node clusters within the public transport system. Results from the analysis demonstrated that both high-clusters and low-clusters exist in the public transportation network, which have a high degree of centrality. It was revealed that commuters navigate from these nodes/stops with relative ease due to the short walking radius. However, the work revealed that most rail networks and bus routes, as well as the stations and bus stops, are not connected and are not significant in the local Moran’s I index, thus, making it difficult for commuters to conveniently move from the Gautrain to the Rea Vaya bus. There are, therefore, gaps with regards to the sharing of infrastructure between the two public transport modes and systems.

scholarly journals Capturing Twitter Negativity Pre- vs. Mid-COVID-19 Pandemic: An LDA Application on London Public Transport System

2021 ◽  
Vol 13 (23) ◽  
pp. 13356
Author(s):  
Ioannis Politis ◽  
Georgios Georgiadis ◽  
Aristomenis Kopsacheilis ◽  
Anastasia Nikolaidou ◽  
Panagiotis Papaioannou
Keyword(s):  
Transport System ◽  
Public Transport ◽  
Latent Dirichlet Allocation ◽  
Transport Systems ◽  
Transport Sector ◽  
Operational Conditions ◽  
The Public ◽  
Public Transport System ◽  
Word Clouds ◽  
Negative Sentiment

The coronavirus pandemic has affected everyday life to a significant degree. The transport sector is no exception, with mobility restrictions and social distancing affecting the operation of transport systems. This research attempts to examine the effect of the pandemic on the users of the public transport system of London through analyzing tweets before (2019) and during (2020) the outbreak. For the needs of the research, we initially assess the sentiment expressed by users using the SentiStrength tool. In total, almost 250,000 tweets were collected and analyzed, equally distributed between the two years. Afterward, by examining the word clouds of the tweets expressing negative sentiment and by applying the latent Dirichlet allocation method, we investigate the most prevalent topics in both analysis periods. Results indicate an increase in negative sentiment on dates when stricter restrictions against the pandemic were imposed. Furthermore, topic analysis results highlight that although users focused on the operational conditions of the public transport network during the pre-pandemic period, they tend to refer more to the effect of the pandemic on public transport during the outbreak. Additionally, according to correlations between ridership data and the frequency of pandemic-related terms, we found that during 2020, public transport demand was decreased while tweets with negative sentiment were being increased at the same time.

scholarly journals SUSTAINABILITY INDEX ASSESSMENT OF URBAN TRANSPORT SERVICES IN DEVELOPING CITIES

ASTONJADRO ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Muhammad Nanang Prayudyanto
Keyword(s):  
Transport System ◽  
Public Transport ◽  
The State ◽  
Urban Transport ◽  
Transport Systems ◽  
Urban Mobility ◽  
Public Transport System ◽  
Transport Services ◽  
Developing Cities ◽  
Asian Cities

<p>The growth and concentration of motor vehicles in developing cities has led to increased demand for urban mobility. Renewed commitments of Asian cities are required in order to achieve the SDG target on urban mobility as well as to enhance overall sustainability of urban transport systems and services. Cities and countries need to track the progress in improving urban mobility. With a view to support evidence based decision, the paper introduces the Sustainable Urban Transport Index (SUTI) of urban transport services, to help summarize, track and compare the state of urban mobility in Asian cities, as model for developing cities in the world. It also presents the results of pilot application of SUTI in four Asian cities: Greater Jakarta; Kathmandu; Hanoi; and Colombo. The four pilot cities were able to collect data, analyzed and assess the state of urban mobility in their city using SUTI. The assessment result supported policy makers to identify policy gaps, prioritize additional measures and investment strategies required to improve urban transport systems and services in each city. The visual output display in spider diagram was useful to comprehend state of all 10 key indicators in a glace. The pilot study demonstrated the usefulness of SUTI tool and the pilot cities were already using the results of SUTI analysis. In Kathmandu additional efforts are required to improve pedestrian infrastructure and facilities, Colombo needed to improve quality and reliability of public transport system, while Hanoi and Greater Jakarta need to put additional efforts to increase mode share of public transport system.</p>

scholarly journals Competitiveness of the public transport and car owner behavior: interrelations and contradictions in the light of sustainable development of the metropolis

2020 ◽  
Vol 208 ◽  
pp. 05005
Author(s):  
Irina Skorobogatykh ◽  
Zhanna Musatova ◽  
Roman Sidorchuk ◽  
Natalia Ivashkova ◽  
Petr Nevostruev
Keyword(s):  
Sustainable Development ◽  
Transport System ◽  
Public Transport ◽  
Negative Impact ◽  
Urban Transport ◽  
Transport Systems ◽  
Successful Implementation ◽  
The Public ◽  
Public Transport System

Consistent actions taken by car manufacturers to improve the quality of vehicles make them easier to use and reduce their negative impact on the environment significantly strengthen the competitiveness of personal transport. At the same time, high investments in the development of urban transport systems (especially large ones) create conditions for the mobility of all population groups, but do not significantly affect the competitiveness of public transport. At the same time, the high competitiveness of the public transport system is a sign of the successful implementation of the concept of sustainable development of the territory, making it more attractive for tourism and stimulating its development. The study of the limitations of the analysis of the competitiveness of public transport is conducted in this article along with an analysis of the factors that influence the choice of citizens in terms of mobility for their daily tasks. The article presents the results of an empirical study of relations between Moscow residents and public transport, changes in the intensity of use of personal cars in the period 2015-2020. During this period, the transport system has undergone significant positive changes, which have affected the perception of comfort and accessibility of public transport in Moscow.

Sign in / Sign up

Export Citation Format

Share Document