scholarly journals Application of traffic simulation models for urban road network analyses – case Studies from Rijeka city

2021 ◽  
Author(s):  
Aleksandra Deluka-Tibljaš ◽  
Ivan Klasić ◽  
Sanja Šurdonja ◽  
Irena Ištoka Otković
Keyword(s):  
Case Studies ◽  
Urban Areas ◽  
Road Network ◽  
Simulation Models ◽  
Network Analyses ◽  
Advantages And Disadvantages ◽  
Traffic Conditions ◽  
Micro Simulation ◽  
Optimum Solution ◽  
The City

The process of road network planning and designing in urban areas can be significantly improved by using microsimulation of traffic models. Traffic microsimulations are used for analyses and estimation of new proposals as well as for the reconstruction of existing infrastructure in order to reach optimum solution for defined problem. In this paper, applications of different analyses approaches are analyzed in two case studies. Both case studies are located in the city of Rijeka but in different parts of the city, in different traffic conditions and in circumstances where different changes in traffic network are planned. In both cases new solutions were tested through VISSIM traffic model and by application of SIDRA Intersection methodology. VISSIM is a stochastic, discrete, micro-simulation model designed for traffic analyses while SIDRA Intersection is a lane-based micro-analytical model. The results proved the suitability as well as advantages and disadvantages of both approaches. The paper contains suggestions for optimal application of selected models regarding different traffic problems.

scholarly journals IMPROVEMENT OF THE CITY TRANSPORT SYSTEM BY MEANS OF SIMULATION

2019 ◽  
Vol 8 (6) ◽  
Author(s):  
Polina A. Buyvol ◽  
Gulnara A. Yakupova ◽  
Irina V. Makarova
Keyword(s):  
Transport System ◽  
Traffic Management ◽  
Road Network ◽  
System Analysis ◽  
Computer Experiment ◽  
Simulation Models ◽  
Traffic Lights ◽  
The Road ◽  
Transport Services ◽  
The City

The transport system plays an important role in human activities and is an integral part of the successful functioning of the urbanized area. The increasing degree of provision of urban residents with transport services should at the same time keep the environment environmentally friendly and sustainable over time. The article is devoted to the issues of ensuring the rational functioning of the city transport system based on the development and implementation of an intelligent road infrastructure management system, the intellectual core of which are simulation models of problem areas of the road network. The objective of the study is the development of tools for organizing traffic in the conditions of the rapid growth of the fleet of vehicles. Research tasks were to analyze the research in the field of traffic management, to consider methods to reduce and prevent traffic jams on roads in general and in individual sections in particular. The following research methods were used: methods of system analysis, methods of modeling traffic flows, simulation, computer experiment. Achievements: the developed simulation model can be used to conduct a computer experiment in order to select the optimal parameters for the functioning of traffic lights on a specific section of the road network of the city of Naberezhnye Chelny

scholarly journals CHALLENGES OF SNOW DISPOSAL AND INNOVATIVE SOLUTIONS IN THE CONDITIONS OF NUR-SULTAN

2021 ◽  
Vol 26 (1) ◽  
pp. 20-29
Author(s):  
M. T. Yermekov ◽  
◽  
O. V. Rozhkova ◽  
S. G. Sandibekova ◽  
Ye. T. Tolysbayev ◽  
...  
Keyword(s):  
Urban Areas ◽  
Sewage Treatment ◽  
Heat Pumps ◽  
Successful Implementation ◽  
Snow Melting ◽  
Sewer System ◽  
Snow Removal ◽  
Advantages And Disadvantages ◽  
The Impact ◽  
The City

Introduction. In this paper, we analyze various methods of snow removal in urban areas and consider the most cost-effective and efficient solutions for snow removal and disposal using heat from sewage drains by means of stationary snow-melting points (SMP) in Nur-Sultan. In cooperation with Astana su Arnasy specialists, responsible for the operation of the city sewer system, as well as cleaning and disinfection of urban sewage drains, we reviewed the main advantages and disadvantages. Methods. The paper looks into the possibility of utilizing heat from sewage drains with the help of heat pumps. This method has been successfully tested at a sewage treatment plant and is currently used to heat auxiliary premises. The same principle can be applied in SMPs with a separate discharge of meltwater to the storm sewer. Results. Having studied the experience of using various methods for snow removal in urban areas, we find that snow removal with the use of sewage drains through the creation of special snow-melting complexes integrated with the city sewer system is the most promising method for Nur-Sultan since it allows for reducing costs, intensifying the process of snow melting, and eliminating the hazardous impact of meltwater on the environment. Conclusion. To ensure successful implementation and use of this snow removal method in Nur-Sultan, it is required to conduct a number of additional studies on the impact of sewage treatment plants on the technological processes, as well as to test options for separating sewage drains with the help of heat pumps, and, based on the studies conducted, to determine the final configuration of snow-melting complexes.

scholarly journals Capacity Estimation of Multilane Highways under Heterogeneous Traffic Conditions using Micro-Simulation Technique

2020 ◽  
Vol 12 (01) ◽  
pp. 20-25
Author(s):  
Tanumoy Ghosh ◽  
Sudip Kumar Roy ◽  
Subhamay Gangopadhyay
Keyword(s):  
Simulation Model ◽  
Traffic Flow ◽  
Flow Characteristics ◽  
Simulation Models ◽  
Heterogeneous Traffic ◽  
Traffic Condition ◽  
Traffic Conditions ◽  
Geometric Conditions ◽  
Micro Simulation ◽  
Traffic Flow Characteristics

The behavior of a driver of any vehicle is important in estimating heterogeneous traffic conditions with no strict lane discipline. In the present study, a micro-simulation model is used to analyze the mixed traffic condition with different drivers’ behavior parameters. The field data collected on traffic flow characteristics of multilane highways are used in the calibration and validation of the simulation model. Out of the ten coefficient of correlation (CC) parameters in the simulation model, five are used in the present study to make a model of simulation for heterogeneous traffic; the other five parameters are not considered for testing their influence on simulated capacity values as they represent very typical behavior of a driver, either in car-following, or in free-flow conditions. Two separate simulation models are made by changing the CC (CC0, CC1, CC2, CC7, and CC8) parameters, each for a four-lane divided and a six-lane divided highway as the geometric conditions of the roads and the traffic flow is different for both the cases. These models are then applied on two other sections of a four-lane divided and a six-lane divided highway to validate the parameters of the model developed earlier for other sections.

scholarly journals Coexistence of Diversified Dog Socialities and Territorialities in the City of Concepción, Chile

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 298
Author(s):  
Hugo Capellà Miternique ◽  
Florence Gaunet
Keyword(s):  
Case Studies ◽  
Urban Areas ◽  
Opportunity To Learn ◽  
Urban Habitat ◽  
Urban Identity ◽  
Stray Dogs ◽  
Human Culture ◽  
Feral Dogs ◽  
Ethnographic Methodology ◽  
The City

There has been scant research on the presence of stray dogs in cities. Studying their very considerable presence in Concepción (Chile) provided a unique opportunity to learn more about the different patterns of sociality and territoriality exhibited by the dog species. Via a set of case studies, we examined the behavior of urban dogs, adopting an ethnographic methodology. This yielded findings of the dogs’ cognitive, social and spatial adjustment abilities, i.e., their territorialities. Our hypothesis was validated: We found numerous types of sociability, we confirmed the presence of two previously established categories: family dogs (pets, guard dogs and beggars’ dogs) and stray dogs (dogs almost entirely unused to humans, aggressive dogs at the far end of the campus and feral dogs in the woods). We also identified three new ones: familiar stray dogs in packs (dogs both spatially and socially close to humans), pet-stray dogs (i.e., village dogs interacting closely with people) and free-roaming pet dogs. We conclude that an ongoing two-way bond between humans and animals allowed these dogs to became part of a city’s urban identity and explains the stray dogs’ plasticity in terms of adapting to the diversified urban habitat. We postulate that it was the human culture and range of urban areas in Concepción that gave rise to this unique diversity of sociospatial positioning and level of adjustment (e.g., dogs crossing crosswalks).

scholarly journals OPEN MUSEUM AS A TOOL FOR CULTURE SUSTAINABILITY: PRAMBANAN TEMPLE STUDY CASE

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Munadjat Wardoyo
Keyword(s):  
Cultural Heritage ◽  
Case Studies ◽  
Urban Areas ◽  
Sustainable Tourism ◽  
Rapid Development ◽  
Heritage Tourism ◽  
Tourism Industry ◽  
Study Case ◽  
Heritage Planning ◽  
The City

A city or region can not escape the rapid development from time to time. This development certainly begins with the planning that is well-prepared in all aspects that want to be developed in the city, where one of them is a cultural heritage. Planning or plans that are formed of course will directly or indirectly affect the entire related aspects, so it is very important to support historical buildings or other cultural heritage. Therefore, it suggests the concept of the open museum as a tool or a way to maintain and protect cultural heritage, which can then also help develop culture and heritage tourism in a particular city or region. In this discussion, it was also stated that the open museum is an effective tool to maintain urban heritage, maintain history and culture, and encourage sustainable tourism. There are two case studies that will be discussed in this paper, which are case studies from related journals, which are about the City of Mecca, which with the existence of urban development projects is feared to endanger the historical locations in the city. The planning solution which was then developed was by proposing to make the inner-city area a protected historical location and developing it as an open museum with the aim of giving consideration or recommendations for the maintenance and protection of the historical location of Mecca, and forming a sustainable tourism industry taking into account the existence of Hajj activities and Umrah business. The discussion of this paper will also be complemented by a reflection of the open museum concept in the Indonesian context, which focuses on the Prambanan Temple Complex as one of the applications of the open museum concept that can be used as a way to realize sustainable cultural heritage in urban areas.

scholarly journals The impact of road infrastructure failures on traffic conditions and travel behaviour in urban areas – the case of the Lazienkowski Bridge in Warsaw

2019 ◽  
Vol 284 ◽  
pp. 01006
Author(s):  
Andrzej Szarata ◽  
Katarzyna Nosal Hoy
Keyword(s):  
Urban Areas ◽  
Travel Behaviour ◽  
Research Problem ◽  
Transport Infrastructure ◽  
Negative Consequences ◽  
Traffic Conditions ◽  
Failure Data ◽  
Traffic Volumes ◽  
The Impact ◽  
The City

This article deals with the problems of failures of transport infrastructure sections and their consequences. The article presents the research problem of assessing the impact of the fire on Lazienkowski Bridge, in Warsaw, on the travel behaviour of city residents as well as traffic conditions in the city. Changes occurring directly after the bridge’s failure during the period up to several months after the event were analysed. In order to assess the consequences of the failure, data obtained from traffic measurements on selected bridge crossings and interview surveys carried out among city residents were used. The results of the surveys proved that the exclusion of the Lazienkowski Bridge from traffic resulted in a significant increase in traffic volumes on other bridges, especially neighbouring ones, and resulted in longer rush hours on the bridge crossings in question. 42% of the city‘s residents felt the negative consequences of the failure in the form of worse conditions of travel and 36% of the residents reported a longer travel time to work/school. The failure also caused changes in travel behaviour as regards the choice of means of transport, travel route or not travelling altogether. The consequences of the failure affected, to the greatest extent, the residents of areas most functionally connected with the bridge.

scholarly journals Sustainable regeneration of urban areas (using the example of Moscow renovation program)

2019 ◽  
Vol 110 ◽  
pp. 01011 ◽  
Author(s):  
Vladimir Rimshin ◽  
Roman Aralov
Keyword(s):  
Urban Areas ◽  
Spatial Model ◽  
Environmental Problem ◽  
Economic Issue ◽  
Advantages And Disadvantages ◽  
Mortgage Crisis ◽  
New Construction ◽  
The 1960S ◽  
Medium Businesses ◽  
The City

The paper discusses advantages and disadvantages of the renovation program in the city of Moscow (Russia). This program of the Moscow government is aimed at demolishing low-rise housing built in the 1960s and new construction in the vacated territory. On the basis of the analysis of this program’s disadvantages, seven major problems were identified - a flaw in the socio-spatial model of the city, a threat to small and medium businesses, a mortgage crisis, an economic issue, a low level of apartment comfort, an environmental problem, and increase in population density. Various methods for the reconstruction of the five-story buildings of the first mass series with superstructure floors are considered.

scholarly journals IMPROVEMENT OF TRAFFIC CONDITIONS OF THE ROAD NETWORK IN THE CITY OF KEMEROVO

2019 ◽  
Vol 7 ◽  
pp. 95-98
Author(s):  
Elizabeth Anokhina
Keyword(s):  
Road Network ◽  
The Road ◽  
Traffic Conditions ◽  
The City

Features of movement of conditions site of a road network of the city of Kemerovo are considered, and the options of increasing the capacity of the urban highway are presented.

Sustainable water cycle design for urban areas

2003 ◽  
Vol 47 (7-8) ◽  
pp. 25-31 ◽  
Author(s):  
M. Maher ◽  
T. Lustig
Keyword(s):  
Case Studies ◽  
Urban Areas ◽  
Large Scale ◽  
Water Cycle ◽  
Economic Benefits ◽  
Regulatory Factors ◽  
Advantages And Disadvantages ◽  
Decentralised Systems ◽  
Scale Down

This paper presents the argument that the environmental, social and economic benefits of decentralised systems are such that they should present a serious alternative to centralised systems in existing and future planned urban developments. It will be shown that the combination of technical, social and regulatory factors that influenced the popularity of centralised systems has altered, and that decentralised systems should now be considered as well. The environmental, social and economic advantages and disadvantages of several sustainable watercycle case studies are examined and compared with centralised systems. The studies examined will go from large scale down to designs suitable for typical residential houses on standard urban blocks.

Mock-Ups: Using Experiential Simulation Models in the Healthcare Design Process

2019 ◽  
Vol 12 (2) ◽  
pp. 11-20 ◽  
Author(s):  
Joyce Durham ◽  
Ann Kenyon
Keyword(s):  
Decision Making ◽  
Case Studies ◽  
Design Process ◽  
Simulation Models ◽  
Test Construction ◽  
Healthcare Design ◽  
User Input ◽  
Advantages And Disadvantages ◽  
Construction Techniques ◽  
Different Types

Purpose: The purpose of this article was to explore how different types of mock-ups are being used in the healthcare design process and present a methodology framework for the process. Background: Historically, physical mock-ups have been used in healthcare design primarily to test construction techniques. Although this historic use of mock-ups assisted the design team in decision-making, newer forms of mock-ups have evolved that expand the input provided into decision-making. These newer techniques, rapid prototyping, early build-out, virtual reality, and enhancements to the traditional physical mock-up focus more on challenging the functionality of the space, testing new operational concepts, and increasing user input. Method: This methodology article utilized five case studies in which different types and combinations of mock-ups were used in the design process and then, the methodology compares the realism, immersion, and testability of each mock-up technique. Results: For each mock-up type, the case studies described the purpose of the technique, the advantages and disadvantages, the most appropriate phase for its use in the design process, the estimated cost, and the process logistics. These components are compared to assist in developing a methodology for a variety of design situations. Conclusions: The findings related to different mock-up techniques are a valuable tool for healthcare design teams to use in selecting the most appropriate mock-up technique and the proposed methodology will assist in executing the mock-up process.

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