scholarly journals LANDSLIDE PHENOMENA IN KANALIA VILLAGE, FTHIOTIDA PR. AND HANDLING THEIR IMPACTS IN THE RESIDENTIAL DEVELOPMENT OF THE AREA

2004 ◽  
Vol 36 (4) ◽  
pp. 1816 ◽  
Author(s):  
Δ. Ρόζος ◽  
E. Αποστολίδης
Keyword(s):  
Road Network ◽  
Flexible Structures ◽  
Geological Structure ◽  
Residential Development ◽  
Tree Plantations ◽  
The Road ◽  
Ground Conditions ◽  
The One ◽  
Gabion Walls ◽  
The Village

In the present paper, the serious landslide phenomena that make difficult the residential development of Kanalia village are studied. Kanalia village is located on a slope of the eastern bank of Roustianitis torrent, the main hydrographie axis of the broader area, which is one of the main branches of Sperchios River. The geological structure of the area (sandstones and siltstones of the Pindos zone flysch) as well as the hydro meteorological and climatological conditions favoring the formation of locally very thick weathering mantle and also the development of seasonal aquifers, were at first studied. As it was confirmed, the main causes of landslide phenomena manifestation are related to the above conditions, to the erosional activity of water in the slopes of the hydrographie axes and finally to the human interventions.These phenomena are observed in five (5) main sites with most important the one affected the South - Southwest part of the village covering the area from KanaliaGardiki provincial road until Roustianitis torrent downwards. In that case, the periodic re-activations of the sliding phenomena during the last forty years have caused full destruction and abandonment of this part of the village, since no relevant measures have been taken so far. The remaining sites are restricted in some parts of the village road network, without affecting residential zones.For the protection and development of the residential area of Kanalia village, the following measures were recommended for the improvement of the ground conditions in the slope affected areas: (a) drainage both of the surficial and ground waters in the vulnerable zones, (b) slope supporting works with gabion walls (flexible structures), (c) protection of the stream slopes from erosion and undermining with gabion walls and gully dams, (d) tree plantations, and (e) suitable and appropriate foundation of the new constructions on the stable basement or foundation using specific types, if necessary. It is suggested the application of these measures for the safety of the road network, the good operation of which constitutes a prerequisite for a safe residential development.

scholarly journals AN INTEGRATED NETWORK-CONSTRAINED SPATIAL ANALYSIS FOR CAR ACCIDENTS: A CASE STUDY OF TEHRAN CITY, IRAN

2019 ◽  
Vol XLII-4/W18 ◽  
pp. 335-342
Author(s):  
S. A. EslamiNezhad ◽  
M. R. Delavar
Keyword(s):  
Road Network ◽  
Statistical Parameter ◽  
Kernel Functions ◽  
Urban Traffic ◽  
Point Pattern ◽  
One Dimensional ◽  
The Road ◽  
Car Accidents ◽  
The One ◽  
Car Accident

Abstract. Research on determination of spatial patterns in urban car accidents plays an important role in improving urban traffic safety. While traditional methods of spatial clustering of car accidents mostly rely on the two dimensional assumption, many spatial events defy this assumption. For instance, car accidents are constrained by the road network and rely on the one dimensional assumption of street network. The aim of this study is to detect and statistically prioritize the car accident-prone segments of an urban road network by a network-based point pattern analysis. The first step involves estimating the density of car accidents in the one dimensional space of the road network using the network kernel density estimation (NKDE) method with equal-split continuous and discontinuous kernel functions. In the second step, due to the lack of statistical prioritization of the accident-prone segments with NKDE method, the output of the NKDE method is integrated with network-constrained Getis-Ord Gi* statistics to measure and compare the accident-prone segments based on the statistical parameter of Z-Score. The integration of these two methods can improve identification of accident-prone segments which is effective in the enhancing of urban safety and sustainability. These methods were tested using the data of damage car accidents in Tehran District 3 during 2013–2017. We also performed the Network K-Function to display the significant clustering of damage car accident points in the network space at different scales. The results have demonstrated that the damage car accidents are significantly clustered.

scholarly journals Performance of slope stabilization trials on the road network of Laos

2020 ◽  
Vol 54 (1) ◽  
pp. qjegh2020-064 ◽  
Author(s):  
G. Hearn ◽  
J. Howell ◽  
T. Hunt
Keyword(s):  
Road Network ◽  
Low Cost ◽  
Slope Stabilization ◽  
The Road ◽  
Engineering Measures ◽  
Ground Conditions ◽  
On The Road ◽  
Bioengineering Techniques ◽  
Future Practice ◽  
Heavy Rains

Landslides pose significant hazards on the road network of Laos. These landslides frequently block access and occasionally result in the subsidence or loss of the carriageway. Several slope stabilization trials focusing on the use of bioengineering techniques and low-cost engineering measures were implemented in 2007 and 2008. Heavy rains in 2018 caused numerous landslides on the road network and a review was undertaken of the performance of the slope stabilization trial sites implemented ten years earlier. The outcome has proved very positive overall and vindicates the efforts made to understand the causes and mechanisms of the observed slope failures and the ground conditions that pertained. The outcomes of this research have been used to strengthen practice in Laos, and further afield, and to provide a valuable basis for future practice.

scholarly journals Hydro-Stratigraphic Conditions and Human Activity Leading to Development of a Sinkhole Cluster in a Mediterranean Water Ecosystem

Hydrology ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 111
Author(s):  
Stefano Margiotta ◽  
Gabriele Marini ◽  
Sergio Fay ◽  
Francesco M. D’Onghia ◽  
Isabella S. Liso ◽  
...  
Keyword(s):  
Road Network ◽  
Southern Italy ◽  
Rapid Evolution ◽  
The Road ◽  
Enhanced Dissolution ◽  
Water Ecosystem ◽  
Wildlife Reserve ◽  
The Village ◽  
Natural Laboratory ◽  
Development And Evolution

Salento Peninsula (Apulia, southern Italy) is characterised by many active sinkholes, which represent the main geological hazard. The stretch of coastline between the village of Casalabate and Le Cesine wildlife reserve is highly affected, with a system of dunes separating the low beach from extensive wetlands, which were subject to uncontrolled urban development after reclamation. The overall morphology is characterized by flat topography, whilst from a hydrogeological standpoint, the mixing of inland freshwater with advancing brackish water favours the higher aggressivity with respect to soluble rocks, and the development of enhanced dissolution (hyperkarst). The relict landscapes within the protected areas still allow for the recognition of actively occurring sinkholes, which cause damage to houses, the road network and infrastructures. In this article the case of Aquatina di Frigole is described, where in the last 15 years numerous sinkholes have formed, with the processes still in rapid evolution. Detailed surveys allow for to identification of the mechanisms of sinkhole formation (suffusion sinkholes), the deriving cluster, and the main hydrogeological links among the different water bodies in the area. Acquatina di Frigole provides an excellent natural laboratory to observe development and evolution of sinkholes, and their relationships with the stratigraphic and hydrogeological elements.

Improved Floyd Route Mending Algorithm Based on Dynamic Travel Time Applied to the Estimation of Floating Car Origin-Destination Data

2013 ◽  
Vol 361-363 ◽  
pp. 2196-2200
Author(s):  
Hui Zhao
Keyword(s):  
Travel Time ◽  
Road Network ◽  
Time Varying ◽  
Application Performance ◽  
The Road ◽  
Floating Car Data ◽  
Factors Influencing ◽  
The One ◽  
Corridor Network ◽  
Beijing China

The floating car data (FCD) is widely used to estimate the time-varying OD demands in recent years. The one of the most important factors influencing the application performance of FCD is the completeness of FCD route data. This paper is intended to develop Floyd route mending algorithm based on dynamic travel time for FCD. In this framework, the raw FCD and the processed FCD are used to identify the problem of data missing based on topological structure of the road network. Then, an approach is developed to mend route based on improved Floyd route mending algorithm based on the GIS map. The approach is designed in a way that takes full advantage of the dynamic characteristics of travel time and quick routes scan. The paper applies the proposed methodology to mend routes and derive OD demands of FCD for the Western 3rd Ring-Road corridor network in Beijing, China. It is shown from the statistical analysis that the approach is accurate and the OD demands of FCD can reflect the characteristics of OD demands of all vehicles in the road network.

scholarly journals Penataan Jaringan Jalan Di Desa Sitamiang Dalam Mencapai Pariwisata Berkelanjutan Kabupaten Toba Samosir

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Ahmad Nizar Simatupang ◽  
DwiraNirfalini Aulia
Keyword(s):  
Road Network ◽  
Transportation Network ◽  
Primary Data ◽  
Road Transportation ◽  
The Road ◽  
Photo Documentation ◽  
Qualitative Descriptive ◽  
Survey Results ◽  
The Village ◽  
North Sumatra

Desa Sitamiang adalah Desa yang terletak di Kecamatan Onan Runggu Kabupaten Samosir Sumatera Utara. Desa Sitamiang merupakan salah satu desa dengan daya tarik wisata yang tinggi karena terletak di pinggiran Danau Toba dalam keadaan ini Desa Sitamiang ini belum mempunyai jaringan jalan transportasi yang layak dan mempuni.  Jalan Desa hanya berupa tanah dengan lebar 3,5 m dan panjang 2,8 Km. Sehingga perlu disegerakan Pembangunan jaringan jalan, dengan rancangan jalan mempunyai lebar 7 m dan panjang 2,8 Km. Penelitian ini merupakan penelitian deskristif kualitatif data Primer diperoleh dengan metode observasi , wawancara, dan dokumentasi foto lapangan. Setelah melakukan hasil survey dan menganalisanya maka Penulis membagi Desa Sitamiang menjadi 3 Zona yaitu Zona 1, Zona 2, dan Zona 3. Dari pembangian tiga Zona tersebut, akhirnya dapat merancang jaringan transfortasi jalan di Desa Sitamiang yang akan memudahkan Penulis merencanakan fasilitas-fasilitas lainnya. Sitamiang Village is a village located in Onan Runggu District, Samosir Regency, North Sumatra. Sitamiang Village is one of the villages with a high tourist attraction because it is located on the outskirts of Lake Toba. In this situation, Sitamiang Village does not yet have a proper transportation network. The village road is only a land with a width of 3.5 m and a length of 2.8 Km. So it needs to be rushed Development of the road network, with the design of the road has a width of 7 m and a length of 2.8 Km. This research is a qualitative descriptive study Primary data obtained by observation, interviews, and field photo documentation. After conducting the survey results and analyzing it, the author divides Sitamiang Village into 3 Zones, namely Zone 1, Zone 2, and Zone 3. From the construction of the three Zones, finally the road transportation network design in Sitamiang Village can be made which will facilitate the writer to plan other facilities.

scholarly journals Analisis Kinerja Jalan Satu Arah di Kecamatan Semarang Tengah, Kota Semarang

2019 ◽  
Vol 31 (2) ◽  
pp. 55-66
Author(s):  
Astri Purnama Dewi ◽  
Syafrudin Syafrudin ◽  
Bambang Riyanto
Keyword(s):  
Road Network ◽  
Service Level ◽  
City Government ◽  
The Road ◽  
Road Section ◽  
Road Capacity ◽  
Traffic Loads ◽  
On The Road ◽  
The One ◽  
The City

Kota Semarang mengalami peningkatan pergerakan lalu lintas setiap tahunnya, khususnya  Kecamatan Semarang Tengah, yang memiliki fungsi sebagai kawasan pusat perbelanjaan, perdagangan dan jasa, perkantoran, dan pendidikan. Pemerintah Kota Semarang telah berupaya mengatasi permasalahan lalu lintas dengan menerapkan sistem satu arah pada ruas Jalan Gajahmada, Jalan Pandanaran, Jalan MH. Thamrin, Jalan Pemuda, Jalan Imam Bonjol Selatan, Jalan Kapten Piere Tendean, dan Jalan Indraprasta. Penelitian ini dilakukan untuk mengetahui gambaran efektivitas atas penerapan sistem satu arah pada ruas jalan tersebut dengan menggunakan metode analisis deskriptif dan kuantitatif hasil keluaran EMME2 versi 9.5. Hasil dari penelitian ini yakni setelah diterapkannya sistem satu arah masih terdapat ruas jalan yang mengalami penurunan kinerja jalan, yaitu ruas jalan Imam Bonjol Selatan belum sesuai dengan persyaratan fungsi jalan karena lebar badan jalannya hanya 10 meter sedangkan dalam persyaratan untuk fungsi jalan arteri sekunder lebar badan paling sedikit 11 meter, ruas Jalan Kapten Piere Tendean dan Pandanaran nilai DS 0.75 pada waktu sore hari dan berada pada tingkat pelayanan D pada ruas Jalan Pandanaran sedangkan tingkat pelayanan E berada pada ruas Jalan Kapten Piere Tendean. Selain itu, pada ruas Jalan Imam Bonjol Selatan, Kapten Piere Tendean, dan Pandanaran masih belum sesuai dengan indikator kinerja sistem jaringan jalan untuk meminimalisasi atau mengurangi ketertundaan total dan panjang perjalanan total karena kecepatan perjalanan menurun dan kapasitas jalan belum mampu menampung beban lalu lintas. Solusi penanganan yang dilakukan adalah nilai DS harus 0.75 dan maksimal menunjukkan ditingkat pelayanan C, Jalan Kapten Piere Tendean, dan Jalan Pandanaran, pelebaran jalan 1 meter pada ruas Jalan Imam Bonjol Selatan dan pengaturan off street parking pada ruas Jalan Imam Bonjol Selatan, Kapten Piere Tendean, dan Pandanaran. Kata kunci: EMME2 versi 9.5, kinerja sistem jaringan jalan, permasalahan lalu lintas, sistem satu arah.   Performance Analysis of One - Way Roads in Central Semarang District, Semarang : The city of Semarang is experiencing an increase in the movement of traffic every year, especially in Central Semarang District which has a function as a shopping center, trade and service area, office area, and education area. The Semarang City Government has tried to overcome traffic problems by implementing a one - way system on Gajahmada, Pandanaran, MH. Thamrin, Pemuda, Imam Bonjol Selata n, Piere Tendean, and Indraprasta streets . This study was conducted to determine the effectiveness of the implementation of the one - way system on the road using the analysis method, which wa s descriptive and quantitative output of EMME2 version 9.5. The re sults showed that after the implementation of one - way system, there was still decreased performance in some roads. The road segment in Imam Bonjol Selatan street had not fulfill the requirements for road functions because the width of the road wa s only 10 meters, mean while according to the requirements for secondary arterial road functions it should be at least 11 meters. The DS value of Piere Tendean and Pandanaran Roads was 0.75 in the afternoon . Furthermore, the level service of Pandanaran Road was D w hile Captain Piere Tendean Road section was E . In addition, Imam Bonjol Selatan, Captain Piere Tendean and Pandanaran Roads we re not in accordance with the performance indicators for the road network ing system to minimize or reduce total delays and total t rip length because travel speeds were declining and road capacity had not been able to accommodate traffic loads. T o overcome this problem the DS value must be 0.75 and the maximum service level should be C in Piere Tendean and Pandanaran Road s , widening 1 meter road on Imam Bonjol Selatan section, and setting off street parking on Imam Bonjol Selatan Road, Captain Piere Tendean, and Pandanaran. Keywords : EMME2 version 9.5, road network system performance, traffic problems, one - way system

scholarly journals Rimske komunikacije u sjeveroistočnoj Bosni sa posebnim osvrtom na novootkrivenu dionicu puta na planini Bišini / Roman roads in northeastern Bosnia and Herzegovina with a focus on newly discovered road section on the mountain Bišina

2018 ◽  
pp. 193-216
Author(s):  
Goran Popović
Keyword(s):  
Bosnia And Herzegovina ◽  
Road Network ◽  
The Road ◽  
Early Christian ◽  
Large Stone ◽  
The North ◽  
Road Section ◽  
Road Width ◽  
The Village

In this paper we are processing a newly discovered Roman road which is located on the mountain Bisina, in the northeast Bosnia. The road is paved with large stone blocks and it’s long about 2,2 km. Approximate road width is about 2,5 and 3,5 meters. Namely, it is very difficult to determine the exact width because the curbs are  missing on both sides of the road, while in some places the Roman road is partially  covered with layers of soil. One local Roman road, visible in a length of about 550 m.  connected the Roman settlement formed around Gradina in the village of Mramorka,  where an early Christian basilica was discovered, with the mentioned Roman route. The remains of the Roman roads on Bišina can not be identified, based on written and epigraphic sources, with some of already confirmed Roman roads. Nevertheless, mentioned road can be approximately integrated into the network of Roman roads on the territory of Bosnia and Herzegovina. In my opinion, this direction is a continuation of the road that led from Salona to the interior of Dalmatia. It is the road that has  been made during the administration of Publius Cornelius Dolabella, who connected  the capital of the province of Dalmatia with the settlement of HE [....?] ASTEL [....?]  DAESITATIVM. Findings on the ground indicated that one sequel of this Roman  road has lead to the north. The assumed direction of the Roman road is: Breza / Dabravina – mountain Zvijezda – Konjuh – Kaštijelj – Bišina – Pantelići – Šeher – Matkovac – Caparde – Kulina – southeastern slopes Majevica – the valley of the river Sapna.  This direction was the shortest communication between Salona and Sirmium. The discovery of the Roman road on the Bišina Mountain is very important because it indicates that inaccessible mountain massifs, which are now uninhabited and difficult to pass, were not an obstacle for the Romans during the construction of roads, as previously believed. Also, the discovery of the road indicates that we are still so far from the complete reconstruction of the Roman road network in the territory of Bosnia and Herzegovina.

scholarly journals Design optimal rural road network using GIS

2017 ◽  
Vol 41 (1) ◽  
pp. 63-71
Author(s):  
Anil Modinpuroju ◽  
CSRK Prasad
Keyword(s):  
Rural Areas ◽  
Road Network ◽  
Geographical Information ◽  
The Road ◽  
Rural Road ◽  
Nodal Points ◽  
Key Factor ◽  
Definition Of ◽  
Effective Development ◽  
The Village

To have an effective development among the isolated, remote areas, rural transportation is recognized as a key factor. Efficient rural transportation depends largely on a well-knit road network to provide accessibility and mobility in rural areas. This work affords an applied method for the development of rural road networks in rural areas of developing countries. The proposed methodology enables to determine nodal points in the rural road network based on the facility index of the settlements. The rural road network is generated by connecting the nodal points by minimum travel time path in Geographical Information System (GIS). Spatial analysis is carried out in the study area to identify the Desirable Coverage Distance of the Facility(DCDF). The Village Facility Index (VFI) is calculated by considering the desirable coverage distance. The suggested methodology is simple and practical, hence, highly applicable to real-world scenarios, as demonstrated in the definition of the road network for the rural areas.

scholarly journals ENGINEERING GEOLOGICAL INVESTIGATION OF SLOPE FAILURES IN PALEO MIKROHORIO EVRYTANIA PR., AIMING AT ITS SAFE RESIDENTIAL DEVELOPMENT

2004 ◽  
Vol 36 (4) ◽  
pp. 1806 ◽  
Author(s):  
Δ. Ρόζος ◽  
E. Αποστολίδης
Keyword(s):  
Geological Structure ◽  
Residential Development ◽  
General Description ◽  
Slope Failures ◽  
Residential Areas ◽  
Geological Investigation ◽  
Geological Map ◽  
Development Area ◽  
The Village ◽  
Hydrogeological Behaviour

The geological structure and tectonism of Paleo Mikro Horio development area in relation with the morphology and engineering geological - hydrogeological behaviour of the formations contributed to the instability of certain slopes and the manifestation of serious landslides, with distinctive event, the landslides manifested on 13/1/1963, that resulted in the death of 13 persons and the destruction of the greatest part of the village. Manifestation of recent phenomena refers to slope failures restricted and surficial, outside the residential area at the upward forest slope of the village. To ensure safe delimitation of the village residential development area, all the abovementioned data were evaluated, taking also into account the rather high seismic risk of the area, and an engineering geological map was compiled at a scale of 1:5.000. This map includes seven (7) engineering geological units, three (3) for the basement formations and four (4) for the recent formations. For every one of them a general description, the engineering geological and hydrogeological behaviour as well as basic approaches of the engineering geological setting resulting from the geodynamic-geomorphologic evolution of the area are given. Based on all the collected data and the engineering geological map, recommendations relevant for the residential use development of the area were formulated, mainly by means of a zonation map including three zones as following: (a) areas considered safe without taking specific additional measures, (b) areas considered insecure due to the activity of the groundwater and their instability in general, specifically under dynamic load, although current soil displacement phenomena have not been observed and (c) areas covered by the 1963's landslide materials, considered unsuitable for building. Finally, the application of measures that improved the geotechnical conditions of the new residential areas as well as the existed ones was thought to be necessary, apart from the good foundation of the houses and the anti-seismic enforcement of the constructions.

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