scholarly journals Understanding Traffic Congestion via Network Analysis, Agent Modeling, and the Trajectory of Urban Expansion: A Coastal City Case

2021 ◽  
Vol 6 (6) ◽  
pp. 85
Author(s):  
Julio Amézquita-López ◽  
Jorge Valdés-Atencio ◽  
David Angulo-García

The study of patterns of urban mobility is of utter importance for city growth projection and development planning. In this paper, we analyze the topological aspects of the street network of the coastal city of Cartagena de Indias employing graph theory and spatial syntax tools. We find that the resulting network can be understood on the basis of 400 years of the city’s history and its peripheral location that strongly influenced and shaped the growth of the city, and that the statistical properties of the network resemble those of self-organized cities. Moreover, we study the mobility through the network using a simple agent-based model that allows us to study the level of street congestion depending on the agents’ knowledge of the traffic while they travel through the network. We found that a purely shortest-path travel scheme is not an optimal strategy and that assigning small weights to traffic avoidance schemes increases the overall performance of the agents in terms of arrival success, occupancy of the streets, and traffic accumulation. Finally, we argue that localized congestion can be only partially ascribed to topological properties of the network and that it is important to consider the decision-making capability of the agents while moving through the network to explain the emergence of traffic congestion in the system.

Author(s):  
Diana Barbosa de Castro ◽  
Fabiana Rocha Pinto ◽  
David Barbosa de Alencar ◽  
Ricardo Silva Parente

This study aims to describe the effects generated by the construction of Avenida das Flores, has the objective of evaluating the effects caused by an urban mobility project, located in Manaus-AM, and the use of some neighborhoods of the city is prohibited. . Through this process of urban expansion, it is necessary to search for alternatives to urban problems, in addition to seeking solutions for the traffic disorder, a lack of urban mobility due to the difficulty of movement of people living in the more remote neighborhoods of central Manaus. . In this context, formulate the Matrix method of use based and adapted in the Leopold Interaction, which par excellence is dedicated to making relationships, noting the most relevant impacts. The survey allowed to obtain results that could indicate the negative effects caused by the environment in compartments such as: alteration (soil quality, area and microclimate), biotic reduction (reduction of endemic species and forest areas) and social (increase of vehicle circulation, attraction of new constructions and services, serving as a source of decision making, allowing to identify the most relevant effects for the use of instrument in decision making.


2021 ◽  
Author(s):  
Shubhankar Sengupta ◽  
Jürgen Scheffran ◽  
Dmitry Kovalevsky

<p>We develop a single-agent-based model in Netlogo of a coastal city facing climate change, using the VIABLE framework. The coastal city is threatened by damages from sea level rise and subsequent extreme sea level events. The agent, representing an urban planner, uses capital generated by the city to mitigate these damages by investing into one of two adaptation options available to it- developing coastal defenses or relocating the vulnerable coastal territories of the city inland. As the simulation progresses, gradually rising sea levels and randomly occurring extreme sea level events incur damages, and the agent alters its investments to optimize its value, resulting in dynamic reactive behavior. We track the response of this agent to the changing system through its investment patterns.</p>


Traffic Congestion is a situation of transportation system that results in slow speed of vehicles, take large time for trip and increase vehicle quening. In metro city, traffic congestion is the major problem. Pune comes in metropolitan city. The increasing number of vehicles in the metro city leads to traffic congestion. Thus, there is need of proper traffic management in the city. The objective of this research work is to study the traffic characteristics of urban area and provide simulation technique. The study is based on traffic data collected for 8 days during peak and non-peak hours. Different study is carried out to find out the problem statement like volume study, travel time studies, parking studies, delay studies, pedestrian studies, and accident studies. The study is divided in four major parts like Causes of traffic congestion in urban area, remedial measure to avoid traffic congestion. Current IRC specification on SH-27, and new traffic strategies can be implemented by Simulation of Urban Mobility SUMO - for analysis before they are using in real word simulation. In this research paper, we comparatively study the Indian Road Congress (IRC) SP:84-2014 for state highway 27 i.e.Nagar road and that study is divided into the 12 major points .


2010 ◽  
Vol 20 (4) ◽  
pp. 540-556 ◽  
Author(s):  
Honghui Zhang ◽  
Yongnian Zeng ◽  
Ling Bian ◽  
Xijun Yu

2021 ◽  
Vol 5 (4) ◽  
pp. 10-17
Author(s):  
Nino Kacharava

Traffic Congestion has become a new version of plague for urbanized areas. Massive breakthroughs in technology, increasing in production of motorized cars, global reduction in prices for automobiles and the rapid population growth in Tbilisi, Georgia has led to the urgence of complete rearrangement of transportation system in the city. As a post-Soviet Union country, Georgia has had rudiments like “Marshrutkas” (privately owned minibuses) as a primary mode of transportation. Serious research and actions started in 2019 when sustainable urban mobility plan was introduced in Tbilisi; which favors public transport and pedestrians. In the course of this project one of the main avenues was converted into complete street model and hourly parking was introduced in the city centers. However, the problem regarding traffic jams still stands. This paper contributes to analyzing current situation in Tbilisi and suggesting suitable solutions. It will cover how reversible lanes, road pricing, signalized Intersections, reserved bus lanes and parking can be adapted to Tbilisi in order to reduce traffic jams.


Author(s):  
José Ignacio Ruiz Castillo ◽  
Diego Armando Vargas Zambrano ◽  
Daniel Alfredo Delgado Gutiérrez ◽  
Eduardo Humberto Ortiz Hernández

  El tránsito peatonal es un fenómeno de la sociedad moderna que, por una creciente tendencia hacia la mitigación en el impacto del congestionamiento vehicular, la contaminación y proponer una movilidad sostenible, se ha convertido en un importante foco de estudio para las ciudades. El presente trabajo tuvo como objetivo analizar el tránsito peatonal dentro varias calles en la ciudad de Portoviejo, para identificar problemas y proponer posibles soluciones. Para su ejecución, se aplicó una investigación de campo basada en la observación y en la aplicación de un aforo peatonal apoyado de una encuesta dirigida a las personas que transitan por el área de estudio. Los resultados indicaron que el punto de congestión peatonal tuvo lugar en la Avenida América entre Calle Pedro Zambrano y Avenida Manabí, especialmente en horario matutino.   Palabras clave: Tránsito; tránsito peatonal; problemas de movilidad; movilidad urbana; movilidad sostenible.   Abstract Pedestrian traffic is a phenomenon of modern society that, due to a growing trend towards mitigating the impact of traffic congestion, pollution and proposing sustainable mobility, has become an important focus of study for cities. The objective of this work was to analyze the pedestrian traffic within several streets in the city of Portoviejo, to identify problems and propose possible solutions. For its execution, a field investigation was applied based on observation and the application of a pedestrian count supported by a survey directed at people who pass through the study area. Results indicated that the pedestrian congestion point occurred on Avenida América between Calle Pedro Zambrano and Avenida Manabí, especially in the morning.   Keywords: Transit; pedestrian traffic; mobility problems; urban mobility; sustainable mobility.


2020 ◽  
Vol 17 (2) ◽  
pp. 66-73
Author(s):  
R. D. Oktyabrskiy

The article is devoted to the justification of the need to reduce the population density in the residential development of cities. The analysis of vulnerability of the urban population from threats of emergency situations of peace and war time, and also an assessment of provision of the city by a road network is given. Proposals have been formulated to reduce the vulnerability of the urban population in the long term and to eliminate traffic congestion and congestion — jams.


Author(s):  
Muhammad Ghifari Arfananda ◽  
◽  
Surya Michrandi Nasution ◽  
Casi Setianingsih ◽  
◽  
...  

The rapid development of information and technology, the city of Bandung tourism has also increased. However, tourists who visit the city of Bandung have problems with a limited time when visiting Bandung tourist attractions. Traffic congestion, distance, and the number of tourist destinations are the problems for tourists travel. The optimal route selection is the solution for those problems. Congestion and distance data are processed using the Simple Additive Weighting (SAW) method. Route selection uses the Floyd-Warshall Algorithm. In this study, the selection of the best route gets the smallest weight with a value of 5.127 from the Algorithm process. Based on testing, from two to five tourist attractions get an average calculation time of 3 to 5 seconds. This application is expected to provide optimal solutions for tourists in the selection of tourist travel routes.


Climate ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 34
Author(s):  
Catarina C. Rolim ◽  
Patrícia Baptista

Several solutions and city planning policies have emerged to promote climate change and sustainable cities. The Sharing Cities program has the ambition of contributing to climate change mitigation by improving urban mobility, energy efficiency in buildings and reducing carbon emissions by successfully engaging citizens and fostering local-level innovation. A Digital Social Market (DSM), named Sharing Lisboa, was developed in Lisbon, Portugal, supported by an application (APP), enabling the exchange of goods and services bringing citizens together to support a common cause: three schools competing during one academic year (2018/2019) to win a final prize with the engagement of school community and surrounding community. Sharing Lisboa aimed to promote behaviour change and the adoption of energy-saving behaviours such as cycling and walking with the support of local businesses. Participants earned points that reverted to the cause (school) they supported. A total of 1260 users was registered in the APP, collecting more than 850,000 points through approximately 17,000 transactions. This paper explores how the DSM has the potential to become a new city service promoting its sustainable development. Furthermore, it is crucial for this concept to reach economic viability through a business model that is both profitable and useful for the city, businesses and citizens, since investment will be required for infrastructure and management of such a market.


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