Road network density as a quality indicator of transport services

The article reveals the content of measures to improve the organization of transport services in the metropolis. The key directions of the city transport system development are considered. The analysis of the offered offers is carried out. Keywords: metropolis, transport development, public transport, street and road network.

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Optimizing Road Network Density Considering Automobile Traffic Efficiency: Theoretical Approach

Journal of Urban Planning and Development ◽

10.1061/(asce)up.1943-5444.0000780 ◽

2022 ◽

Vol 148 (1) ◽

Author(s):

Yanlei Cui ◽

Yi Yu ◽

Zhengyi Cai ◽

Dianhai Wang

Keyword(s):

Theoretical Approach ◽

Road Network ◽

Network Density ◽

Traffic Efficiency

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IMPROVEMENT OF THE CITY TRANSPORT SYSTEM BY MEANS OF SIMULATION

GÃªnero & Direito ◽

10.22478/ufpb.2179-7137.2019v8n6.49200 ◽

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

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Modeling the Spatial Formation Mechanism of Poverty-Stricken Counties in China by Using Geographical Detector

Sustainability ◽

10.3390/su11174752 ◽

2019 ◽

Vol 11 (17) ◽

pp. 4752 ◽

Cited By ~ 2

Author(s):

Zhou ◽

Zhen ◽

Wang ◽

Xiong

Keyword(s):

Spatial Pattern ◽

Poverty Alleviation ◽

Road Network ◽

Influential Factors ◽

Influential Factor ◽

Central China ◽

Network Density ◽

Special Focus ◽

Severe Condition ◽

Geographical Detector

The poverty-stricken counties in China follow a spatial pattern of regional poverty. Examining the influential factors of this spatial pattern can provide an important reference that can guide China in its implementation of a poverty alleviation policy. By applying a geographical detector and using a sample of poverty-stricken counties in China, this study explores the spatial relationship of county distribution with spatial influential factors, including terrain relief, cultivated land quality, water resource abundance, road network density, and the locational index. These poverty-stricken counties are then classified, and the main factors that restrict their economic development are determined. The results highlight that the selected poverty-stricken counties suffer a severe condition in each of the spatial factors mentioned above. Most of these counties are classified under the location index, terrain relief, and road network density constraint types. Each of the aforementioned spatial influential factors has unique controlling mechanisms on the distribution of these poverty-stricken counties. Most of these counties are constrained by two or multiple spatial influential factors, except for some counties located in South and Central China, which are mainly constrained by a single spatial influential factor. Therefore, these single factor-constrained poverty-stricken counties warrant more attention when a developmental policy for poverty alleviation is to be implemented. The various aspects of poverty-stricken counties constrained by multiple factors must be comprehensively considered with a special focus on their development. The differentiated policies must be designed for these poverty-stricken counties on the basis of their spatial influential factors.

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

The Russian Automobile and Highway Industry Journal ◽

10.26518/2071-7296-2019-3-264-275 ◽

2019 ◽

Vol 16 (3) ◽

pp. 264-275 ◽

Cited By ~ 1

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.

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Determination of the optimal density of the forest road network

Journal of Forest Science ◽

10.17221/101/2019-jfs ◽

2019 ◽

Vol 65 (No. 11) ◽

pp. 438-444 ◽

Cited By ~ 1

Author(s):

Tihomir Krumov

Keyword(s):

Road Network ◽

Good Condition ◽

National Average ◽

Network Density ◽

Primary Forest ◽

Optimal Density ◽

Forest Road ◽

Financial Difficulties ◽

State Educational

The forest road network is invariably linked to forestry and logging, as it transports logging products and products needed for forestry activities. Constructing and maintaining it in good condition are essential. In view of the economic situation in the country and the financial difficulties faced by forest holdings in the construction and maintenance of the forest road network, it is necessary to determine the optimal hauling distance and the optimal density of the primary forest road network. The analysis of the forest road network in the territory of the State Educational Experimental Forestry Enterprise “Georgi Avramov”, Yundola village, showed that the density of the primary forest road network is several times higher than the national average, namely 20.31 m'·ha–1, yet it does not reach the optimal road network density calculated at the farm, of 30.9 m'·ha–1, at a hauling distance of 323.15 m.<br /><br />

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The Influence of Transport Link Density on Conductivity If Junctions and/or Links Are Blocked

Mathematics ◽

10.3390/math9111278 ◽

2021 ◽

Vol 9 (11) ◽

pp. 1278

Author(s):

Anton Aleshkin

Keyword(s):

Percolation Threshold ◽

Road Network ◽

Random Network ◽

Road Transport ◽

Transport Network ◽

Network Density ◽

Network Algorithms ◽

The Road ◽

Link Density ◽

Percolation Thresholds

This paper examines some approaches to modeling and managing traffic flows in modern megapolises and proposes using the methods and approaches of the percolation theory. The author sets the task of determining the properties of the transport network (percolation threshold) when designing such networks, based on the calculation of network parameters (average number of connections per crossroads, road network density). Particular attention is paid to the planarity and nonplanarity of the road transport network. Algorithms for building a planar random network (for modeling purposes) and calculating the percolation thresholds in the resulting network model are proposed. The article analyzes the resulting percolation thresholds for road networks with different relationship densities per crossroad and analyzes the effect of network density on the percolation threshold for these structures. This dependence is specified mathematically, which allows predicting the qualitative characteristics of road network structures (percolation thresholds) in their design. The conclusion shows how the change in the planar characteristics of the road network (with adding interchanges to it) can improve its quality characteristics, i.e., its overall capacity.

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The impacts of road traffic on urban air quality in Jinan based GWR and remote sensing

Scientific Reports ◽

10.1038/s41598-021-94159-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Qi Wang ◽

Haixia Feng ◽

Haiying Feng ◽

Yue Yu ◽

Jian Li ◽

...

Keyword(s):

Air Quality ◽

Road Network ◽

Road Traffic ◽

Intersection Number ◽

Urban Air Quality ◽

Network Density ◽

Urban Air ◽

Strong Positive Correlation ◽

The Road ◽

Bus Network

AbstractTraffic congestion and smog are hot topics in recent years. This study analyzes the impacts of road traffic characteristic parameters on urban air quality quantitatively based on aerosol optical thickness (AOD) and geographical weighted regression (GWR) models, including the road network density, road area occupancy, intersection number, and bus network density as main factors. There are some major research findings. Firstly, there exists a strong positive correlation between the peak congestion delay index (PCDI) and air quality, the correlation has R2 values of up to 0.4962 (R 0.70). Secondly, GWR refines the local spatial changes in the AOD and the road parameters, and the correlation R2 based GWR model all above 0.6. The correlation between AOD and the road area occupancy was the highest, and the correlations with the bus network density and the intersections number were higher than that with the road network density. Thus, bus route planning, bus emission reduction, road network planning, and signal timing (at intersections) have a greater impact on air quality than other policy, especially in areas with traffic jams. The results of this study could provide theoretical support for traffic planning and traffic control, and is promising in practice.

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Correlation of forest road network density and the production of forest assortments in Serbia in the period 1991-2000

Glasnik Sumarskog fakulteta ◽

10.2298/gsf0387187s ◽

2003 ◽

pp. 187-195

Author(s):

Bogdan Stefanovic ◽

Nenad Rankovic

Keyword(s):

Road Network ◽

Forest Products ◽

Network Density ◽

Total Production ◽

Forest Road ◽

Round Wood

The dependence of the scope of production of the definite forest products (total felling volume, round wood, cordwood, felling waste, waste percentage) in Serbia was analyzed for the period 1991-2000, in relation to the changes of forest road network density. It was concluded that, with the change of forest road network density, the total felling volume, round wood and cordwood decreases, while the quantity of felling waste and its percentage in the total production are not in correlation. This is opposite to the expected which points to the paradox in these relations in the study period.

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Analysis of transport delays in the central part of the city and ways to reduce them

Journal of Mechanical Engineering and Transport ◽

10.31649/2413-4503-2021-14-2-131-139 ◽

2022 ◽

Vol 14 (2) ◽

pp. 131-139

Author(s):

Igor Khitrov ◽

◽

Mykhailo Krystopchuk ◽

Oleg Tson ◽

Oleg Pochuzhevskiy ◽

...

Keyword(s):

Traffic Management ◽

Road Network ◽

Transport Infrastructure ◽

Traffic Light ◽

Traffic Lights ◽

The Road ◽

Transport Services ◽

Traffic Delays ◽

The Impact ◽

The City

The main task in ensuring the appropriate level of organization of traffic on the street and road network of cities is to minimize traffic delays, increase traffic safety, provide transport and pedestrian communication between the planning elements of the city. Problems caused by the deterioration of the street and road network significantly affect the work of the entire transport complex of the city. Significant traffic delays, congestion, characterized by increased travel time, deterioration of transport services, increased pollution of urban environment due to increased emissions and noise, increasing the number of road accidents indicate the inconsistency of the road network of cities to the modern level of motorization. To ensure the required capacity of the elements of the road network, there is a need to create appropriate road conditions, namely the construction of new and reconstruction of existing engineering structures and elements of streets and roads. However, addressing these issues may not always improve the performance of the entire network, as, in parallel with technical measures based on the construction and reconstruction of transport infrastructure, the application of effective traffic management measures to manage traffic in urban areas should be addressed streets. When creating conditions for optimizing the operation of regulated intersections, it is necessary to take into account the technical condition of vehicles, road conditions and the condition of the road surface. One of the main tasks of any traffic organization is to increase the capacity of intersections and reduce vehicle delays, ie the passage of traffic lights with minimal delay. To solve the problem of congestion of the street and road network of the city is to increase the efficiency and use of coordinated management of traffic and pedestrian flows, improving the operation of traffic lights. To implement the introduction of coordinated traffic light regulation, or the so-called green wave, it is necessary to establish the intensity and composition of traffic flows, the capacity of the elements of the road network and the modes of operation of traffic light facilities. The paper considers the results of the study of the impact of coordinated traffic management in the central part of Rivne on reducing traffic delays when passing intersections by vehicles and proposed technical solutions to improve road safety by equipping intersections with additional technical means of traffic control.

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