scholarly journals Using the Genetic Algorithm for Optimization of the Integrated Urban Transportation Systems

2011 ◽  
Vol 2 (1) ◽  
pp. 103-113
Author(s):  
Sharam Gilani Nia ◽  
Bahram Sharif ◽  
Neda Habibzadeh ◽  
Musa Rezvani
Keyword(s):  
Public Transportation ◽  
Urban Transportation ◽  
Transportation Systems ◽  
Infrastructure Investment ◽  
Analytic Framework ◽  
The Public ◽  
Planning Framework ◽  
Proposed Model ◽  
Strategy Combination ◽  
The Relationship

Improving the public transportation problems should rely on integrated multidimensional transport policies which can soften the demand of infrastructure investment. However, it would be very difficult to fully consider the multi-dimensional transport polices in planning framework because there would be too many possible policy combinations to be evaluated. So, this study attempts to develop an analytic framework for evaluating urban integrated transport policies comprehensively, including strategies of investment, pricing, management and regulation. To deal with the difficulty of too many policy combinations, genetic algorithms will be used to search for the optimal strategy combination for integrated transport strategy. Finally, the relationship between quantified objectives, policy combinations, and assessment performances would be analyzed using the proposed model.

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 A NOVEL APPROACH TO OPTIMIZE THE RIDESHARING PROBLEM USING GENETIC ALGORITHM

2019 ◽  
Vol XLII-4/W18 ◽  
pp. 875-878
Author(s):  
S. Rangriz ◽  
M. Davoodi ◽  
J. Saberian
Keyword(s):  
Genetic Algorithm ◽  
Air Pollution ◽  
Public Transportation ◽  
Noise Pollution ◽  
Transportation Systems ◽  
Urban Traffic ◽  
Traffic Jam ◽  
Novel Approach ◽  
Proposed Model ◽  
Public Transportation Systems

Abstract. The enormous increase in the number of vehicles in the cities makes plenty of problems including air pollution, noise pollution, and traffic jam. Overcoming these annoying issues needs a significant plan in urban management such as using modern techniques in public transportation systems. Sharing either cars or taxies is one of the most interesting ways that has been used in some countries recently. In this phenomenon, 2 or 3 people use other’s car or taxi. In this article, an innovative approach to share taxies is proposed, and it uses a Genetic Algorithm to determine the placement of travelers in taxies. Therefore, some taxis will be switched off, and this helps to decrease urban traffic jam in cities. The results present that the proposed model turns off 69.8 % of taxies, and also 27.8 % of them carry more than one passenger; hence, this confirms the performance of the proposed model.

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.

Effects of Multimodal Operations on Urban Roadways

2015 ◽  
Vol 2533 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Kathrin Arnet ◽  
S. Ilgin Guler ◽  
Monica Menendez
Keyword(s):  
Traffic Flow ◽  
Public Transportation ◽  
Urban Transportation ◽  
Transportation Systems ◽  
Signalized Intersections ◽  
System Capacity ◽  
Simple Analysis ◽  
Lane Changes ◽  
Mixed Use ◽  
Bus Lane

Public transportation (e.g., buses) can provide more efficient urban transportation systems by carrying more people in the same space. A commonly used solution to prioritize this mode is to dedicate a lane for bus use only. However, the changes in system capacity are not clear for the use of a dedicated bus lane instead of completely mixed-use lanes. Even if the capacity of the dedicated bus lane were not fully used, this strategy could still increase car capacity in the remaining lanes in two ways: ( a) buses traveling on a separate lane would eliminate conflicting bus maneuvers and ( b) the reduced number of lanes available for cars could reduce the number of lane changes and could smooth traffic. This paper empirically analyzes differences in car capacity between ( a) a mixed-use scenario without the influence of buses and a dedicated-lane scenario and ( b) a mixed-use scenario with and without buses. Results show that with mixed-use lanes the car capacity per lane remains the same as compared with a dedicated-lane scenario. However, in mixed-use conditions, the presence of a bus in traffic flow can reduce capacity by 20%. Based on these findings, a simple analysis is carried out to compare passenger delay at urban signalized intersections with a mixed use versus dedicated bus lane. It is shown that passenger delay can be reduced with use of dedicated bus lanes if bus occupancies are relatively high or if car demand is low.

scholarly journals COVID-19 and Public Transportation: Current Assessment, Prospects, and Research Needs

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Alejandro Tirachini ◽  
Oded Cats
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
The State ◽  
Research Needs ◽  
Sustainable Mobility ◽  
The Public ◽  
Critical Issues ◽  
Contagion Risk ◽  
State Of Affairs ◽  
Public Transportation Systems

The COVID-19 pandemic poses a great challenge for contemporary public transportation worldwide, resulting from an unprecedented decline in demand and revenue. In this paper, we synthesize the state-of-the-art, up to early June 2020, on key developments regarding public transportation and the COVID-19 pandemic, including the different responses adopted by governments and public transportation agencies around the world, and the research needs pertaining to critical issues that minimize contagion risk in public transportation in the so-called post-lockdown phase. While attempts at adherence to physical distancing (which challenges the very concept of mass public transportation) are looming in several countries, the latest research shows that for closed environments such as public transportation vehicles, the proper use of face masks has significantly reduced the probability of contagion. The economic and social effects of the COVID-19 outbreak in public transportation extend beyond service performance and health risks to financial viability, social equity, and sustainable mobility. There is a risk that if the public transportation sector is perceived as poorly transitioning to post-pandemic conditions, that viewing public transportation as unhealthy will gain ground and might be sustained. To this end, this paper identifies the research needs and outlines a research agenda for the public health implications of alternative strategies and scenarios, specifically measures to reduce crowding in public transportation. The paper provides an overview and an outlook for transit policy makers, planners, and researchers to map the state-of-affairs and research needs related to the impacts of the pandemic crisis on public transportation. Some research needs require urgent attention given what is ultimately at stake in several countries: restoring the ability of public transportation systems to fulfill their societal role.

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.

DESIGN PLANNING OF A RAILWAY NETWORK SYSTEM: USING A SIMULATION MODEL

2015 ◽  
Vol 74 (10) ◽  
Author(s):  
Ali Adham ◽  
Mohamed Younis
Keyword(s):  
Simulation Model ◽  
Public Transportation ◽  
Urban Transportation ◽  
Transportation Systems ◽  
Network System ◽  
Mass Transportation ◽  
Kuala Lumpur ◽  
Railway Network ◽  
Two Cities ◽  
Public Transportation Systems

Railways are one of the most popular means of mass transportation systems. The proposed approach has a universal characteristic that can be applied by cities or authorities to design a strategic plan of urban transportation systems that can solve advanced transportation problems. This study focused on designing a new railway network between two big cities in Malaysia—Kuala Lumpur and Kuantan. The simulation model applied for planning the new railway design and analysis is an important factor. The overall objective of this approach is to increase the advantages of passenger service and public transportation systems as well as to make available other transportation means between these two cities. In addition, the model will also choose the best railway network that can accommodate more passengers along the routes between these two cities.

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.

Changing Transportation System in University Campus by Cycling and its Impact on Socio-Cultural Characteristics

2015 ◽  
Vol 747 ◽  
pp. 64-67
Author(s):  
Shirin Vosoughi ◽  
Mohd Johari Mohd Yusof ◽  
Nasir Baharuddin
Keyword(s):  
Public Transportation ◽  
Public Awareness ◽  
Transportation System ◽  
Transportation Systems ◽  
College Campus ◽  
University Campus ◽  
Student Body ◽  
The Public ◽  
Research Interview ◽  
Culture Characteristics

In Malaysia, universities’ public transportation is less than ideal. This discourages its vast public acceptance and use, particularly in the favor of using private vehicles. That in turn shows its adverse effects, such as traffic jams, environmental pollution, etc. Universities are respected institutions, and pace-setters, in the position to alter and improve the "intellectual culture" in any society. A college campus is open to the public, and its scrutiny. The way public transportation is managed in the campus, could serve as a model for the whole community in large. If we establish an efficient streamlined public transportation system on campus, well received by the faculty, student body and personnel, it would not be long before it is noted by the whole community. A college campus in a sense is public, and belongs to all. Moreover, University Putra Malaysia (UPM) is a leading institution among the other Malaysian universities, notable for its sustainable physical layout. From the research, interview and discuss had been done regarding the effectiveness of power position and municipal authorities. It includes the input from a questionnaire filled by 100 students of UPM University, regarding improvement of public transportation and green transportation systems. This research also addresses a variety of transportation systems -especially cycling- and their conduciveness to social interaction on campus. In this study, we will have the provisions to incorporate our suggested solutions to campus transportation system, into the overall layout of campus planners and university organizers. Ideas and recommendations for solutions would be considered at the end of the study. The ideas and improvements should be well publicized, to promote the public awareness, and its acceptance. In time, it would be engrained as a cultural improvement. Without acceptance, any change would be of little use. Key words: Socio-culture characteristics, in campus transportation, social interactions.

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