scholarly journals Dynamic Accessibility Analysis of Urban Road-to-Freeway Interchanges Based on Navigation Map Paths

2021 ◽  
Vol 13 (1) ◽  
pp. 372
Author(s):  
Yadan Yan ◽  
Tianzhao Guo ◽  
Dongwei Wang
Keyword(s):  
Road Network ◽  
Network Planning ◽  
Peak Period ◽  
Impedance Model ◽  
The Road ◽  
Planning And Design ◽  
Calculation Results ◽  
Travel Impedance ◽  
Surrounding Areas ◽  
The City

Accessibility is important for road network planning and design, especially the accessibility of freeway entrances and exits, which reflects the convenience of travelers using freeways and the rationality of the connection between urban roads and freeways. Based on the path information of navigation map software, a new comprehensive travel impedance model to dynamically analyze the accessibility of freeway entrances and exits was proposed. The dynamic accessibility of freeway entrances and exits in Zhengzhou was studied using the proposed comprehensive impedance model, and the calculation results were analyzed. The accessibility of freeway entrances and exits is characterized by dynamic changes; the accessibility during the off-peak evening period is the highest, while that during the morning peak period and evening peak period is lower. The results of the comprehensive impedance model are roughly consistent with reality. From a location perspective, regardless of the period of time, the accessibility of freeway entrances and exits in the central and surrounding areas of Zhengzhou is always at a lower level, and during the off-peak afternoon period, the accessibility of the eastern part of the city is notably higher than that of the western part. Additionally, the accessibility of freeway entrances and exits is closely related to the traffic status of the road network and the characteristics of regional land use. The information can provide feedback for planning road networks and provide a reference for road network planning and traffic facility design.

scholarly journals Ensuring the integrity of the road network as the key to solving the problems of highway capacity in cities

2021 ◽  
Vol 34 (01) ◽  
pp. 103-111
Author(s):  
Arkady V. Zakharov ◽  
Tatiana R. Zabalueva
Keyword(s):  
Traffic Congestion ◽  
Road Network ◽  
Large City ◽  
Small Rivers ◽  
Highway Capacity ◽  
The Road ◽  
Traffic Jams ◽  
Surrounding Areas ◽  
Bridge Building ◽  
The City

Broadband highways are being built in major cities around the world to combat traffic congestion. At the same time, existing buildings are demolished or powerful overpasses are raised above them. However, it often turns out that newly created highways quickly exhaust their capacity, and traffic jams are formed on them again. This situation indicates that increasing the capacity of the highway does not solve the problem of traffic jams, but often aggravates it, since as a result of this increase, even more cars are drawn to the highway from adjacent territories, often exceeding their current capacity. At the same time, the streets in the surrounding areas are empty and their potential is not used to the full extent. This situation has arisen due to the disruption of the city road network by lengthy obstacles in the form of ravines, rivers, floodplains of small rivers, and railways. This situation can be corrected by "stitching" the streets over the gaps by building bridges and overpasses with a capacity corresponding to the capacity of the "stitched" streets. Most of the gaps fall on relatively small streets, which approach the banks of fairly wide floodplains of small rivers and streams, and this makes it advisable to build mainly small (with a span of 20-25 m) and relatively inexpensive bridges, with the number of spans sufficient to cover the floodplain and reach the levels of road surfaces of connected streets. There will be several hundred such bridges over the river barriers in a large city, for example, Moscow, and several hundred more, taking into account the required number of them over the railways, and in the end, about a thousand. It is proposed to erect bridge buildings instead of simple road bridges. Such structures combine two city functions; the first of them is transport, the second is public, residential, or economic, depending on the needs of the city and the environmental situation at the construction site. An important requirement for the second function is a quick return on the financial assets invested in the construction and income from the operation of the building acceptable to the investor. The bridge part of a bridge building should become the property of the city.

scholarly journals Optimization of Evacuation and Walking-Home Routes from Osaka City After a Nankai Megathrust Earthquake Using Road Network Big Data

2021 ◽  
pp. 369-389
Author(s):  
Atsushi Takizawa ◽  
Yutaka Kawagishi
Keyword(s):  
Big Data ◽  
Public Transportation ◽  
Urban Areas ◽  
Road Network ◽  
Large Earthquake ◽  
The Road ◽  
Return Home ◽  
Flooded Area ◽  
Network Big Data ◽  
Surrounding Areas

AbstractWhen a disaster such as a large earthquake occurs, the resulting breakdown in public transportation leaves urban areas with many people who are struggling to return home. With people from various surrounding areas gathered in the city, unusually heavy congestion may occur on the roads when the commuters start to return home all at once on foot. In this chapter, it is assumed that a large earthquake caused by the Nankai Trough occurs at 2 p.m. on a weekday in Osaka City, where there are many commuters. We then assume a scenario in which evacuation from a resulting tsunami is carried out in the flooded area and people return home on foot in the other areas. At this time, evacuation and returning-home routes with the shortest possible travel times are obtained by solving the evacuation planning problem. However, the road network big data for Osaka City make such optimization difficult. Therefore, we propose methods for simplifying the large network while keeping those properties necessary for solving the optimization problem and then recovering the network. The obtained routes are then verified by large-scale pedestrian simulation, and the effect of the optimization is verified.

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 FUNGSI LINGKUNGAN TERBANGUN DI KORIDOR CIGONDEWAH SEBAGAI IDENTITAS KAWASAN INDUSTRI KREATIF DI KOTA BANDUNG

2018 ◽  
Vol 1 (1) ◽  
pp. 55
Author(s):  
Karto Wijaya ◽  
Heru Wibowo
Keyword(s):  
Textile Industry ◽  
Industrial Area ◽  
Creative Industries ◽  
The Road ◽  
Industry Waste ◽  
The People ◽  
The Government ◽  
Developing Area ◽  
Surrounding Areas ◽  
The City

This developing area provides a very wide potential in the development as an area that has excellent products or development projects in Bandung. Cigondewah area has the potential to become this area as a creative industrial area that can support the income of the people and the city of Bandung. Cigondewah is one of the areas known as the Cigondewah environment and surrounding areas as a creative industrial area about the utilization of textile industry waste that sells the rest of cloth from factories around the city of Bandung. The area of Cigondewah grows and develops with the uniqueness of the community itself that will take advantage of opportunities from the textile industry, homes along the road corridor that turns into the shelter, the community into warehouses and shops to sell fabrics.It is also the aim of the government to promote and develop tourist areas Cigondewah for the future to be better again to enhance the identity of the area Cigondewah as a tourist area fabric shopping in the city of Bandung. This study aims to determine the development of creative industries in Cigondewah. Cigondewah Textile Tourism Area of Bandung City, especially Capacity Building, to show the identity and image of Cigondewah area as a textile tourism area in Bandung City. The identity of Cigondewah area which is currently called Cigondewah as Tourism Shopping Area Cloth. From this research is expected to give an idea that the environment is in the corridor Cigondewah road.

scholarly journals Towards a Rule-driven Approach for Updating Dynamic Road Segments

2012 ◽  
Vol 22 (6) ◽  
pp. 405-411
Author(s):  
Mohammad Reza Jelokhani-Niaraki ◽  
Ali Asghar Alesheikh ◽  
Abbas Alimohammadi ◽  
Abolghasem Sadeghi-Niaraki
Keyword(s):  
Data Model ◽  
Road Network ◽  
Road Maintenance ◽  
The Road ◽  
Dynamic Segmentation ◽  
Transportation Organization ◽  
Manual Tasks ◽  
The City ◽  
Transportation Applications ◽  
Road Segments

In recent years, the development of the GIS-T (Geographic Information System for Transportation) applications has gained much attention, providing the transportation planners and managers with in-depth knowledge to achieve better decisions. Needless to say, developing a successful GIS for transportation applications is highly dependent on the design of a well-structured data model. Dynamic segmentation (DS) data model is a popular one being used more and more for different GIS-T analyses, serving as a data model that splits linear features into new set of segments wherever its attributes change. In most cases, the sets of segments presenting a particular attribute change frequently. Transportation managers place great importance on having regular update and revision of segmented data to ensure correct and precise decisions are made. However, updating the segmented data manually is a difficult task and a time-consuming process to do, demanding an automatic approach. To alleviate this, the present study describes a rule-based method using topological concept to simply update road segments and replace the manual tasks that users are to carry out. The proposed approach was employed and implemented on real road network data of the City of Tehran provided by the Road Maintenance and Transportation Organization (RMTO) of Iran. The practical results demonstrated that the time, cost, human-type errors, and complexity involved in update tasks are all reduced. KEYWORDS: GIS-T, dynamic segmentation, segment, automatic update, change type, rule

Recopolis

2020 ◽  
Author(s):  
Lauro Olmo Enciso
Keyword(s):  
Urban Development ◽  
Social Inequality ◽  
Road Network ◽  
Hierarchical Organization ◽  
Rural Settlements ◽  
Medieval Period ◽  
The Road ◽  
Early Medieval Period ◽  
Industrial Buildings ◽  
The City

The foundation of the city of Recopolis on the initiative of King Liuvigild in ad 578 is the clearest material expression of the participation of the Visigothic state in urban development and in the creation of power landscapes. The ex novo construction of the city – city walls, palatial complex, elite houses, commercial and industrial buildings, hierarchical organization of space – and its impact on the wider territory, with the reorganization and renovation of the road network and creation of new rural settlements, was a clear demonstration of political prowess and an expression of the tax-collecting power of the state. Contextualizing these features within the broader landscape helps in understanding the spatial and social inequality that characterized the beginning of the early medieval period.

Reliabiliy of Road Network Layout and Optimization Methods Based on the Connectivity

2013 ◽  
Vol 779-780 ◽  
pp. 544-549
Author(s):  
Xiao Nian Sun ◽  
Shuo Chen ◽  
Yuan Yuan Mai ◽  
Xian Guang Wang
Keyword(s):  
Road Network ◽  
Network Reliability ◽  
Network Planning ◽  
Theoretical Method ◽  
Optimization Methods ◽  
Optimization Method ◽  
Construction Sequence ◽  
The Road ◽  
Network Layout ◽  
Highway Network

This paper conducts an in-depth research on applications reliability in highway network planning and optimization of construction sequence. It introduces the concept of reliability to the layout of the importance of the road network node and establishes a fairly comprehensive theoretical method of highway network planning based on the reliability from the aspects of the road network layout, evaluation, and construction sequence arrangements. Case study illustrates the proposed layout optimization method has achieved satisfactory results in the road network reliability analysis, displaying strong practical promotional value.

scholarly journals Development of the Road Network in the City of Salt in 2004 and 2016 Using GIS

2019 ◽  
Vol 13 (10) ◽  
pp. 94
Author(s):  
Deaa Al-Deen Amjad Qtaishat ◽  
Abd Al Azez Hdoush ◽  
Eng. Loiy Qasim Alzu’Bi
Keyword(s):  
Road Network ◽  
Population Distribution ◽  
Cognitive Model ◽  
Population Census ◽  
Network Characteristics ◽  
The Road ◽  
Standard Distance ◽  
Knowing That ◽  
The Social ◽  
The City

The aim of this study is to analyze the structure of the road network in As-Salt City in the period between 2004 and 2016, in order to identify the road employability in terms of the degree of connectivity, rotation, accessibility, and density. The relationship between the social properties and road distribution are also examined through analysis of the network characteristics concerning population distribution. The data used in this study was based on the As-Salt City Municipality Database supported with fieldwork done in 2016. The network analysis approach using GIS was used to calculate the roads employability. The study compares between the results of the analysis using the cognitive model of the road network for the years 2004 and 2016, knowing that the number of nodes in 2004 and 2016 was constant indicating the number of neighborhoods is 20, while the number of links changed from 42 links in 2004 to 50 links in 2016 and the average center of roads was determined, and it was estimated that the average road center is located near the municipality of As-Salt The study indicates that the road network suffers from a low degree of communication and rotation and the standard distance of road sites in the study area. The standard distance for each group was 2338.49 m. There is a disparity in the distribution of road network within As-Salt City, and the proportion of roads lengths dose not suit the population distribution pattern. The neighborhood of Al- Salalem, includes 19.5% of the total number of roads in As-Salt, because the neighborhood of Al-Salalem contains the highest population census and this is accompanied by urban growth, which is necessarily accompanied by the presence of roads. Therefore, it is recommended to have a plan to redistribute the population in the city and to establish new roads to reduce the problems of traffic in the city.

scholarly journals Data-Driven Bicycle Network Analysis Based on Traditional Counting Methods and GPS Traces from Smartphone

2019 ◽  
Author(s):  
Federico Rupi ◽  
Cristian Poliziani ◽  
Joerg Schweizer
Keyword(s):  
Road Network ◽  
Smartphone Application ◽  
The Road ◽  
Total Deviation ◽  
Deviation Index ◽  
Shortest Route ◽  
Gps Traces ◽  
The Absolute ◽  
The City ◽  
Entire Network

This research describes numerical methods to analyze the absolute transport demand of cyclists and then to quantify the road network weaknesses of a city with the aim to identify infrastructure improvements in favor of cyclists. The methods are based on a combination of bicycle counts and map-matched GPS traces and are demonstrated with the city of Bologna, Italy: the dataset is based on approximately 27,500 GPS traces from cyclists, recorded over a period of one month on a volunteer basis using a smartphone application. A first method estimates absolute, city-wide bicycle flows, by scaling map-matched bicycle flows of the entire network to manual and instrumental bicycle counts of the main bikeways of the city. As there is a good correlation between the two sources of flow data, the absolute bike-flows on the entire network have been correctly estimated. A second method describes a novel link-deviation index, which quantifies for each network edge the total deviation generated for cyclists in terms of extra distances traveled with respect to the shortest possible route. The deviations are accepted by cyclists either to avoid unpleasant road attributes along the shortest route or to experience more favorable road attributes along the chosen route. The link deviation index indicates the planner which road links are contributing most to the total deviation of all cyclists – in this way, repelling and attracting road attributes for cyclists can be identified. This is why the deviation index is of practical help to prioritize bike infrastructure construction on individual road network links.

scholarly journals THE USE OF STATISTICAL MODELING TO ASSESS THE EFFECTIVENESS OF THE APPLICATION OF ADAPTIVE CONTROL AND RECONSTRUCTION OF THE ROAD NETWORK INTERSECTIONS

2021 ◽  
pp. 40-49
Author(s):  
Roman V. Andronov ◽  
◽  
Evgeny E. Leverents ◽  
Keyword(s):  
Statistical Modeling ◽  
Simulation Modeling ◽  
Traffic Management ◽  
Road Network ◽  
Economic Assessment ◽  
Adaptive Regulation ◽  
Network Nodes ◽  
The Road ◽  
Management Measures ◽  
The City

The article discusses the issues and results of the use of statistical modeling (one of the types of simulation modeling, the so-called "Monte Carlo" method), to assess the effectiveness of traffic management on the example of the Timofey Charkov st. and Verkhnetarmanskaya st. intersection, located in the city of Tyumen. The results are based on the length of the vehicle queue and traffic delay time for one car in the scenario of widening the intersection’s carriageway and/or the implementation of the adaptive regulation for traffic flows. The calculations were carried out in the "SmartAdaptive+" program developed by the authors, and designed for a technical and economic assessment of the effectiveness of traffic management measures and the use of adaptive regulation and measures to change the road network nodes configuration.

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