Analysis for an Efficient Transport Network in Assiut City North of Ring Road, Egypt, Using GIS and Graph Theory

The issue of organising efficient transport within Europe is one of the areas of a common policy of the European Union, shaped for over 30 years. Poland has been participating in this creative process since May 1, 2004. The intensity of the development of transport and the economy of individual countries that do not only belong to the Community but also have a significant impact on changes in the European Union's transport policy aimed at improving the course of pan-European transport corridors. In parallel with the creation of an effective European transport network, the rapid economic development of the regions belonging to the Union, including Poland, is becoming increasingly important. This article aims to discuss the issue of the development of the trans-European transport corridors, which also passes through the territory of Poland. In addition, this paper aims to present changes in EU policy concerning the shaping of transport infrastructure in Europe, following which a single transport network is to be created soon, meeting the communication and economic needs of the countries belonging to the Community.

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ALLOCATION OF POSTAL NETWORK FACILITIES, BASED ON EXISTING ROAD INFRASTRUCTURE

CBU International Conference Proceedings ◽

10.12955/cbup.v3.586 ◽

2015 ◽

Vol 3 ◽

pp. 075-081

Author(s):

Jozef Štefunko ◽

Radovan Madleňák

Keyword(s):

Graph Theory ◽

Future Development ◽

Optimal Solution ◽

Transport Network ◽

Research Approach ◽

Road Infrastructure ◽

Strategic Investments ◽

Postal Network ◽

Postal Sector ◽

Reliability And Availability

Postal operator, as well as every network enterprise, needs to keep its costs on the lowest level possible, while maintaining the reliability and availability of its services. One option to the costs is to optimize the transport network. This article focuses on the creation of postal network based on existing road infrastructure in Slovakia. Except the basic analysis of the infrastructure, the research approach adopted in this article relies on methods of graph theory to solve allocation problems. In particular, it is the method of p-median values and its algorithms to determine the number and location of new postal sorting centers. The findings showed that the analysis performed is just the cornerstone in finding the optimal solution for such strategic investments. Results are bounded to the input values used, especially the distance of the network vertices. Specific values of postal sector need to be incorporated with more thorough analysis of road infrastructure, considering future development of transport network.

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Optical burst transport network (OBTN) - a novel architecture for efficient transport of optical burst data over lambda grids

HPSR. 2005 Workshop on High Performance Switching and Routing, 2005. ◽

10.1109/hpsr.2005.1503194 ◽

2005 ◽

Cited By ~ 6

Author(s):

C.M. Gauger ◽

B. Mukherjee

Keyword(s):

Transport Network ◽

Burst Data ◽

Efficient Transport ◽

Optical Burst

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TESTING THE EFFECTIVENESS OF THE STREET NETWORK OF CITIES (ON THE EXAMPLE OF PETROZAVODSK)

The economy of the North-West: problems and prospects of development ◽

10.52897/2411-4588-2021-2-145-150 ◽

2021 ◽

Vol 2 (65) ◽

pp. 145-150

Author(s):

Evgeny P. Dudkin ◽

◽

Abujwaid Husam Abbas Mohsin ◽

Leonid A. Losin ◽

◽

...

Keyword(s):

Graph Theory ◽

Public Transport ◽

Traffic Congestion ◽

Road Network ◽

Network Connectivity ◽

Transport Network ◽

Transport Infrastructure ◽

Street Network ◽

Real Network ◽

The City

The transport network of cities can be represented as a complex of streets and passages, as well as elements of public transport infrastructure unconnected with the street and road network. It is reasonable to represent the real network in the form of a simplified network based on graph theory to analyze the properties of the transport network. There are various methods of network connectivity assessment, including those based on various indices. According to all indicators in the street and road network of the city of Petrozavodsk it is necessary to increase the number of units. The implementation of recommendations for changes of the street and road network of the city of Petrozavodsk will reduce traffic congestion, the number of accidents and transport expenses. It is recommended to use the proposed method to assess and improve the street and road network of cities.

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Simulation analysis of the western 3rd ring road project in Krakow and its forecast impact upon the urban transport network performance

Transportation Overview - Przeglad Komunikacyjny ◽

10.35117/a_eng_18_08_02 ◽

2018 ◽

Vol 2018 (8) ◽

pp. 12-24

Author(s):

Arkadiusz Drabicki ◽

Andrzej Szarata ◽

Rafał Kucharski

Keyword(s):

Inner City ◽

Transport System ◽

Road Network ◽

Network Performance ◽

Simulation Analysis ◽

Urban Transport ◽

Transport Network ◽

Ring Road ◽

Road Project ◽

The City

The paper presents results from simulation analysis of the western 3rd ring road project in the city of Krakow (i.e. Trasa Lagiewnicka, Trasa Pychowicka and Trasa Zwierzyniecka), performed in the macroscopic model of transport system in the Krakow metropolitan area. Simulation works reveal shifts in traffic flows and changes in urban transport network performance which would likely take place after the stage-wise construction of consecutive 3rd ring road western sections. Results indicate that the analysed road schemes would indeed have a relevant impact upon travel conditions, though in initial stages these would be rather limited and confined to the southern part of the city. Therefore, completion of the whole western section of the 3rd ring road is crucial to its overall effectiveness and would only then bring substantial benefits on a city-wide scale. Simulation works seem to confirm that the future 3rd ring road would become an essential and highly-utilised link in the urban road network and would provide a much more efficient connection between the northern and southern parts of the Krakow city. However, apart from the projected benefits, it is also important to underline potential negative implications – and consequently, further changes in city transport system should envisage reduction of the road network capacity within the inner-city area. This would then provide the best possible chance of fostering the improvements achieved with the 3rd ring road scheme: i.e., positive changes in accessibility and travelling conditions across the whole city and long-term, sustainable traffic congestion relief in the inner-city Krakow area.

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Graph theory-based sediment connectivity analysis of a glacierised Alpine basin for different event scenarios

10.5194/egusphere-egu2020-17926 ◽

2020 ◽

Author(s):

Anuschka Buter ◽

Tobias Heckmann ◽

Lorenzo Fillisetti ◽

Antonia Spitzer ◽

Luca Mao ◽

...

Keyword(s):

Graph Theory ◽

Sediment Transport ◽

Hot Spot ◽

Specific Area ◽

Transport Processes ◽

Transport Network ◽

Connectivity Analysis ◽

Sediment Sources ◽

Sediment Connectivity ◽

Talus Deposits

Sediment connectivity has been receiving increased attention in the last years. Several approaches have been applied to analyse where and to what extent sediment sources are connected to the main fluvial network and/or to depositional areas. Especially in mountain environments, sediment transport is temporally and spatially variable, and thus assessing sediment connectivity is challenging. Within this work, a graph theory-based approach is presented, with the aim to identify changes in space and time within the sediment transport network during the main sediment transport periods of the year.A network, built up by nodes and directed edges, was manually digitized for the Sulden/Solda river basin (Vinschgau/Venosta valley, Italian Alps). The nodes represent landforms delineated within a previously developed geomorphological map, which features 32 different landform categories and seamlessly covers the entire basin (~130 km&#178;). The directed edges are connecting nodes if sediment transport is (potentially) occurring from one to the subsequent geomorphological unit. This evaluation was made based on visual evidences from orthophotos and geomorphological as well as topographical characteristics of the respective landforms. Furthermore, a sediment transport process type was assigned to each edge.Snow and glacier melt scenarios are defined by the occurrence of specific sediment transport processes, hence activation or deactivation of the related edges. Scenarios representing potential sediment transport networks during intensive heat periods and intense rain storms are included for both melt seasons, taking into consideration the expected higher frequency of these meteorological conditions in the future decades. For example, rain storm scenarios include edges showing potential debris flow trajectories, whereas these connections are not present in scenarios representing just snow- and ice-melt events. Therefore, functional connectivity changes within the proposed sediment transport network scenarios. For all the events, graph theory measures are calculated, as e.g. the betweenness centrality index to identify &#8220;hot-spot&#8221; nodes of the sediment cascades. Furthermore, the quantity and the composition of the sediment cascades reaching the catchment outlet can be identified in order to highlight the most relevant transport processes as well as to derive the most typical sediment cascades for a specific area.The study basin is characterized by a high sediment availability due to large glacio-fluvial deposits present at the glaciers forefield and to the wide areas covered with talus deposits. However, the connectivity analysis demonstrates that a vast portion of these sediment sources is not connected to the main channel under the modelled melt runoff scenarios. Only in case of intense rainstorms talus deposits might become a coupled sediment source due to the potential occurrence of debris flows. Hence, areas connected only occasionally due to the (re-)activation of specific sediment cascades can be mapped. Additionally, a relative connectivity degree is calculated for every scenario, introducing a better comparability.

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