Refurbishment of tunnels on the autobahn and main road network - Experience and requirements in the view of the road operator / Sanierung von Tunnelanlagen des Autobahnen- und Schnellstraßennetzes - Erfahrungen und Anforderungen aus der Sicht des Straßenb

2014 ◽  
Vol 7 (5) ◽  
pp. 619-625
Author(s):  
Günter Rattei ◽  
Wilhelm Lorber
Keyword(s):  
Road Network ◽  
Main Road ◽  
The Road

scholarly journals Investigating Accidents on the Main Road Network in The North-West Region of Romania

2021 ◽  
Vol 16 (1) ◽  
pp. 1-23
Author(s):  
Rodica Dorina Cadar ◽  
Rozalia Melania Boitor ◽  
Mara Dumitrescu ◽  
Petru Daniel Măran
Keyword(s):  
Road Safety ◽  
Road Network ◽  
Road Density ◽  
Main Road ◽  
North West ◽  
The Road ◽  
The North ◽  
Critical Areas ◽  
West Region ◽  
The Eu

The paper investigates the accidents and fatalities on the main road network in the North-West Region of Romania over a period of 4 years (2015– 2018). The aim of the paper is to highlight some shortcomings and suggest possible improvements of the road network in order to reduce the number of accidents and fatalities. Detailed analyses, including statistical and spatial statistical analyses, were conducted on the accidents involving goods and public transport vehicles considering the scale of their impact. As a result, black corridors and vulnerable municipalities were identified. They were found to be related to the reduced main road density and high levels of freight traffic transit. In conclusion, with one of the lowest motorization rates in the EU and given the important efforts already made by the police, improving road network in Romania becomes the key for reducing accident and fatality rates in the region. In this regard, it is suggested that motorways and ring roads are needed in order to bypass the vulnerable municipalities. The results of this research may enable planners and administrations to act strategically to improve road safety in the critical areas, to prioritize actions for road network development and to formulate better strategies to ensure road safety.

scholarly journals GIS and geographical analysis of the main harbors in the world

2021 ◽  
Vol 13 (1) ◽  
pp. 639-650
Author(s):  
Aleksandar Valjarević ◽  
Dragan Radovanović ◽  
Svetislav Šoškić ◽  
Nikola Bačević ◽  
Nikola Milentijević ◽  
...  
Keyword(s):  
Road Network ◽  
East Coast ◽  
Road Traffic ◽  
Global Scale ◽  
Cluster Method ◽  
Main Road ◽  
The Road ◽  
Marine Traffic ◽  
The World ◽  
Geographical Position

Abstract This paper points out the possibilities of better exploitation of marine traffic as well as its connection with other kinds of traffic. Special attention is given to the analysis of 1,081 harbors about their availability during the year. The methods and algorithms used in GIS are buffers, cluster, method of interpolations, and network analysis. The methods used for the purpose of conducting numerical analyses are algorithms that served for the analysis of the network, its transport features, and the connectivity with harbors in terms of geospace. The main results found in this research showed that harbors have good connectivity in the first place with road traffic and after that with air and railroad traffic. According to data from 2019, all traffic lines cover 4.1 × 1015 km, and the road traffic has the most significant potential in connection with the harbors. The most connected harbors and airports are in the east coast of North America, west coast, north Europe, southern Europe, south-east Australia, a central part of Oceania, and south-east Africa. The results in the modified Likert scale between airports and harbors showed medium results. The densest road network is located in the eastern part of USA, western and central part of Europe, and east coast of China. The number of possible connected lines between main road nodes and harbors is 0.8 × 109. This type of traffic showed excellent results and connection with harbors. The number of possible connected lines per month between railroads and harbors is 1.3 × 103. This type of traffic showed low connectivity with the harbors. In the end comparison of harbors with air, road and railroad networks were established. The geographical position of harbors was analyzed, and better understanding was performed on a global scale.

scholarly journals Graph Model for Minimal Distance and Optimal Circulation in Urban Design

2012 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Pingkan S Pioh
Keyword(s):  
Urban Design ◽  
Road Network ◽  
Graph Model ◽  
Minimal Distance ◽  
Traffic Network ◽  
Main Road ◽  
The Road ◽  
North Sulawesi ◽  
Good Access ◽  
A Current

GRAPH MODEL FOR MINIMAL DISTANCE AND OPTIMAL CIRCULATION IN URBAN DESIGNABSTRACT Among the important aspects in urban design are minimal distance and optimal circulation of the traffic network which include good access to the places of interests. The main road network is modeled in graph where the important places are represented by vertices and the main roads between them are represented in edges. A graph is called 3-connected if for every pair of vertices, there are three disjoint paths connecting them. Given the vertices and their locations, this paper focuses to make a 3-connected graph with minimal distance connecting them. This model is simulated in a computer program and applied in a current road network of Manado City, North Sulawesi Indonesia to see whether of not the road network in Manado is already optimal or not. Keywords: graph, n-connected, minimal distance, urban design.  MODEL GRAF UNTUK JARAK MINIMALDAN SIRKULASI OPTIMAL PADA PERANCANGAN KOTA ABSTRAK Diantara aspek penting dalam perancangan kota adalah jarak yang minimal dan sirkulasi yang baik dari lalu lintas termasuk aksesibilitas dari tempat-tempat penting. Perancangan ini dimodelkan dalam bentuk graf yang simpul-simpul mewakili tempat-tempat penting sedangkan sisi-sisi menyajikan jalan-jalan yang menghubungkan tempat-tempat tersebut. Sebuah graf dikatakan terkoneksi-3 jika untuk setiap pasangan simpul, terdapat 3 jalur saling lepas yang menghubungkan kedua simpul itu. Fokus dari paper ini adalah, jika diberikan simpul-simpul bersama lokasinya, membuat graph yang terkoneksi-3 dengan jarak minimal. Model ini diimplementasikan dalam bentuk program komputer dan diterapkan pada jaringan jalan yang ada di Manado, Sulawesi Utara, Indonesia, sekarang untuk menentukan apakah jaringan jalan di Manado sudah optimal atau belum. Kata kunci: Graf, terkoneksi-3, jarak minimal, perancangan kota

Bottleneck prediction of urban road network based on improved PSO algorithms and fuzzy control

2020 ◽  
Vol 39 (4) ◽  
pp. 5833-5843
Author(s):  
Xue Xing
Keyword(s):  
Fuzzy Control ◽  
Road Network ◽  
Target Area ◽  
Coordination Control ◽  
Urban Road Network ◽  
Main Road ◽  
Urban Road ◽  
The Road ◽  
Road Section ◽  
Improved Pso

Traffic bottleneck refers to the road section or node that often causes the propagation or spread of traffic congestion in the road network, which is the source of the whole road network congestion. In this paper, the author analyzes the bottleneck prediction of urban road network based on improved PSO algorithms and fuzzy control. This paper analyzes the factors and characteristics of the main road of the system, proposes the traffic coordination control of the main road based on the delay model, and carries on the statistical simulation to the actual traffic data, develops the basic theory of the traffic coordination control which is more effective than the traditional timing control strategy. Compared with the traditional model, the algorithm considers the waiting time of the red light at the intersection. For the congested road section, it can better calculate the travel time of the vehicle, making the results more accurate and more applicable. The results of this study can provide a strong theoretical basis and prediction scheme for the traffic management and control of the road network in the target area.

scholarly journals Safety assessment and remedial measures design for an extensive rockfall along the main road to Kimi, East Euboea, Greece

2013 ◽  
Vol 47 (4) ◽  
pp. 1739
Author(s):  
C. Loupasakis ◽  
G. Lalos ◽  
D. Rozos
Keyword(s):  
Road Network ◽  
Safety Assessment ◽  
Current Paper ◽  
Remedial Measures ◽  
Mountainous Areas ◽  
Maximum Volume ◽  
Main Road ◽  
The Road ◽  
Of Greece

The steep morphology and the intense tectonic fragmentation of the mountainous areas of Greece combined with the dense road network create conditions favorable for the manifestation of rockfalls. Numerous events are recorded through the years, some of them causing injuries or even worse loss of lifes. The rockfall that took place along the Kimi – Platana – Paralia provincial road on August 2008, was studied in detail and is presented in the current paper. The rock detachment area was defined 200m away and at an altitude of 140m (130m higher from the road), while the rock pieces detached had a maximum volume of 4m3. The final consequences were two crashed cars and a heavily injured civilian. The causual factors as well as the proposed remedial measures, estimated by the use of RocFall by Rockscience Ltd., are described in detail. Furthermore, the temporary remedial measures applied by contractors are evaluated, pointing their defects.

ANALISIS PENGARUH PEMBANGUNAN JALAN LAYANG JANTI TERHADAP PERKEMBANGAN TATA RUANG KAWASAN JANTI STUDI KASUS : KAWASAN JANTI, DESA CATURTUNGGAL, KABUPATEN SLEMAN, D. I. YOGYAKARTA

2017 ◽  
Vol 11 (3) ◽  
pp. 255
Author(s):  
Jeky El Boru
Keyword(s):  
Road Network ◽  
Open Space ◽  
Qualitative Description ◽  
Analysis Method ◽  
Open Spaces ◽  
The Road ◽  
Before And After ◽  
Linkage Method ◽  
The Impact ◽  
Parking Place

Abstract: This research aims to analyze the impact of Janti Flyover Construction toward the growth of layout at Janti Urban Area, including structured space, open space, and linkage. Method used for data collecting are observation, air photograph monitoring, and interview, whereas the analysis method is qualitative description, which is the superimposed method of two layers, that are the layout condition before and after flyover construction. The result shows that the impact of Janti Flyover construction can be seen on building mass (solid), the increasing number of open spaces, including the road network, parking place, and park, whereas the relation between spaces, visually and structurally, can be seen on the growth of buildings which have new shapes and styles, therefore the performance of the overall building does not have a proportional shape. Considering Janti Street at the collective relation, its role is getting stronger as the main frame road network.Keywords: Flyover construction, layout changing, Janti AreaAbstrak: Penelitian ini bertujuan untuk menganalisis pengaruh pembangunan Jalan Layang Janti terhadap perkembangan tata ruang Kawasan Janti, meliputi ruang terbangun, ruang terbuka, serta hubungan antar ruang (“linkage”). Metode pengumpulan data dilakukan melalui observasi, pengamatan foto udara, dan wawancara; sedangkan metode analisis melalui deskripsi secara kualitatif yang berupa “superimposed method” dari dua lapisan kondisi lahan, yakni kondisi tata ruang sebelum dan sesudah pembangunan jalan layang. Hasil penelitian menunjukkan bahwa pengaruh pembangunan Jalan Layang Janti terdapat pada massa bangunan (“solid”), pertambahan ruang terbuka yang berupa jaringan jalan, parkir, dan taman; sedangkan pada hubungan antar ruang ̶ secara visual dan struktural ̶ yakni tumbuhnya bangunan dengan bentuk dan gaya baru, sehingga bentuk tampilan bangunan secara keseluruhan tidak proporsional. Pada hubungan kolektif, Jalan Janti semakin kuat perannya sebagai kerangka utama jaringan jalan.Kata kunci : Pembangunan jalan layang, tata ruang, Kawasan Janti

STUDY OF MOVEMENTS MOBILITY-IMPAIRED POPULATION GROUPS IN PEDESTRIAN ZONES OF THE STREET-ROAD NETWORK (in the example of city of Kiev)

2017 ◽  
Author(s):  
Oleksandra Cherednichenko ◽  
Keyword(s):  
European Union ◽  
Comparative Analysis ◽  
Road Network ◽  
Actual State ◽  
The European Union ◽  
Regulatory Requirements ◽  
Population Groups ◽  
The Road ◽  
Mobility Impaired

The results of the study of the main elements of unobstructed space are presented and the compliance of the actual state with the regulatory requirements of measures to ensure a safe, comfortable, accessible and informative pedestrian zone of the road network is analyzed. A comparative analysis of the main regulatory requirements for access ramps on the legislation of Ukraine and the European Union is carried out.

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