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 Data-driven Bicycle Network Analysis Based on Traditional Counting Methods and GPS Traces from Smartphone

2019 ◽  
Vol 8 (8) ◽  
pp. 322 ◽  
Author(s):  
Federico Rupi ◽  
Cristian Poliziani ◽  
Joerg Schweizer
Keyword(s):  
Road Network ◽  
Choice Model ◽  
Smartphone Application ◽  
The Road ◽  
Total Deviation ◽  
Shortest Route ◽  
Gps Traces ◽  
The Absolute ◽  
The City ◽  
Entire Network

This research describes numerical methods to analyze the absolute transport demand of cyclists and 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. The methods are demonstrated with data from the city of Bologna, Italy: approximately 27,500 GPS traces from cyclists were recorded over a period of one month on a volunteer basis using a smartphone application. One method estimates absolute, city-wide bicycle flows by scaling map-matched bicycle flows of the entire network to manual and instrumental bicycle counts at the main bikeways of the city. As there is a fairly high correlation between the two sources of flow data, the absolute bike-flows of the entire network have been correctly estimated. Another method describes a novel, total deviation metric per link 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 total deviation metric indicates to the planner which road links are contributing most to the total deviation of all cyclists. In this way, repellant and attractive road attributes for cyclists can be identified. This is why the total deviation metric is of practical help to prioritize bike infrastructure construction on individual road network links. Finally, the map-matched traces allow the calibration of a discrete choice model between two route alternatives, considering distance, share of exclusive bikeway, and share of low-priority roads.

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 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.

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 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.

IMPROVING THE ORGANIZATION OF PASSENGER SERVICE ON THE ROUTE BY USING BUSES OF DIFFERENT CAPACITY

2019 ◽  
Vol 16 (3) ◽  
pp. 264-275 ◽  
Author(s):  
I. M. Ryabovbov ◽  
R. Ya. Kashmanov
Keyword(s):  
Road Network ◽  
High Capacity ◽  
Rolling Stock ◽  
Volga River ◽  
The Road ◽  
Passenger Traffic ◽  
Transport Services ◽  
Rational Distribution ◽  
On The Road ◽  
The City

Introduction. The authors propose to use a rational distribution of buses, taking into account their passenger capacity and the hours of the day, in order to optimize the operation of the rolling stock (RS) on the route. The usage of RS low-capacity on routes with significant passenger traffic increases the RS need, the load on the transport network and emissions of harmful substances into the atmosphere. Operation of high-capacity buses on routes with low power passenger traffic leads to the large intervals of movement and to the increase of waiting time for passengers. The authors highlight that on the number and type of buses’ determining it is necessary to take into account the city specifics (on the example of Volgograd), such as the presence of only two main streets with three lanes in each direction, adjacent roads through which the routes pass, one lane direction.The length of the city along the Volga river in total is about 90 km, due to the peculiarities of the road network (RN) of the city, any irrational use of the RS leads to a significant load on the road network, and, as a result, to the congestion on the roads. Nowadays the PS is not operated effectively.On most routes of the city the capacity of RS does not correspond to passenger traffic on the route. Possible way to optimize the use of RS is taking into account the daily load on the road network.Materials and methods. The authors studied the technology of the movement organization of the rolling stock on the № 59 route. In order to optimize the transportation process, the authors used the method of determining the buses’ number by hour of the day on the base of the graph-analytical method. Buses of different capacity were used on this route.Results. The resulting distribution of buses made it possible to combine the interests of carriers and passengers, to increase the efficiency of rolling stock and to reduce the load on the road network.Discussion and conclusions. As a result, the authors present the measures for improving the efficiency of the rolling stock. These measures are the main for improving transport services for population.

A MODEL FOR THE STUDY OF TRAFFIC FLOW ON THE UKRAINIAN CITIES ROAD NETWORK

2019 ◽  
pp. 30-33
Author(s):  
Liydmila Nagrebelna
Keyword(s):  
Traffic Flow ◽  
Road Network ◽  
Operating Conditions ◽  
Negative Effects ◽  
Efficient Operation ◽  
Urban Road ◽  
The Road ◽  
Effective Functioning ◽  
Organization And Management ◽  
The City

The problems of efficient functioning of the city road network are outlined. The method by which it is possible to improve the functioning of the street-road network of Ukrainian cities is presented. Improving the efficiency of the urban road network is to use all the resources of this network to create the necessary languages for its reliable and efficient operation and reduce the negative effects of motorization. It is proved that in order to ensure the effective functioning of the road network it is necessary to carry out a set of measures for the organization and management of traffic. The purpose of this article is to identify factors that affect the deterioration of operating conditions; identify the conditions for the effective functioning of the road network; the choice of a model for the effective functioning of the street-road network of Ukrainian cities is grounded. Because the management impact on traffic flow can be estimated on the basis of the developed models. Keywords: road network, efficient operation, methods, conditions.

VOLGOGRAD - TSARITSYN - STALINGRAD PLANNING PATTERN: GENESIS OF COMPONENTS (FROM 1589 TO THE 90-S OF XX CENTURY)

2015 ◽  
Vol 5 (3) ◽  
pp. 22-30
Author(s):  
Dmitry Borisovich VERETENNIKOV ◽  
Michael Dmitrievich MYATEZHIN
Keyword(s):  
Growth Rates ◽  
Road Network ◽  
City Planning ◽  
Component Analysis ◽  
Urban Centers ◽  
The Road ◽  
The City ◽  
Qualitative Changes

The article focuses on the formation of Volgograd planning pattern while applying the method of component analysis of the changes in the city planning pattern and outlining the interdependence of these changes in the process of investigating the genesis of the planning pattern. The paper shows different stages of the quantitative growth of the city and qualitative changes in its planning organization. Quantitative growth of the road network in Volgograd and its qualitative changes over the time are investigated. The stages of both nodal and linear urban centers formation are marked. Processes of intensive and extensive development of these centers are described. Quantitative growth rates for all components of Volgograd planning pattern are determined. These figures are summarized in the tables. In conclusion a graphical sheme of the genesis of Volgograd - Tsaritsin - Stalingrad planning pattern is put forward.

SAMARA PLANNING PATTERN: GENESIS OF COMPONENTS (FROM 1586 TO THE 90-S OF XX CENTURY)

2015 ◽  
Vol 5 (3) ◽  
pp. 13-21
Author(s):  
Dmitry Borisovich VERETENNIKOV
Keyword(s):  
Growth Rates ◽  
Road Network ◽  
City Planning ◽  
Component Analysis ◽  
Urban Centers ◽  
The Road ◽  
The City ◽  
Qualitative Changes

The article focuses on the formation of Samara planning pattern while applying the method of component analysis of the changes in the city planning pattern and outlining the interdependence of these changes in the process of investigating the genesis of the planning pattern. The paper shows different stages of the quantitative growth of the city and qualitative changes in its planning organization. Quantitative growth of the road network in Samara and its qualitative changes over the time are investigated. The stages of both nodal and linear urban centers formation are marked. Processes of intensive and extensive development of these centers are described. Quantitative growth rates for all components of Samara planning pattern are determined. These figures are summarized in the tables. In conclusion a graphical sheme of the genesis of Samara planning pattern is put forward.

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