scholarly journals FUNCTIONING AND DYNAMICS OF LANDSCAPES IN THE DESIGN OF HIGHWAYS IN MOUNTAINOUS CONDITIONS

2020 ◽  
Vol 12 (4) ◽  
pp. 565-571
Author(s):  
Levan KORTIEV ◽  
◽  
Alan KORTIEV ◽  
Sarmat VANEEV ◽  
Robert KULUMBEGOV ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Road Construction ◽  
Integrated Approach ◽  
Correct Choice ◽  
Landscape Design ◽  
Road Maintenance ◽  
Negative Consequences ◽  
Engineering Structures ◽  
Design Elements ◽  
The Road

Introduction. Roads, as linear engineering structures in mountainous conditions for the sake of traffic safety, should provide a smooth interface and their harmonious combination with the surrounding landscape with the use of longitudinal slopes and radii on curves that reduce accidents and injuries. Anthropogenic intervention on the mountain natural landscape, for the purpose of road construction, is not always safe, because weak soils come into dynamics and the functioning of the road is complicated. For this , it is necessary to conduct a spatial analysis and an integrated approach to the issue, covering all aspects of landscape design of the road to eliminate negative consequences. The essence of the question. The design of highways in mountainous areas without observing the landscape principles of safe operation and with less dynamic shifts of the roadbed leads to a violation of the relief forms, with the implementation of large volumes of earthworks necessary to ensure the projected slope. Research methods. In the process of writing the article, the following methods were used: analysis - in the search and analysis of literature on the subject; observation and comparison in the study and selection of the optimal option. Conclusions: 1. When designing highways in mountain landscapes, it is necessary to find a harmonious combination of the functioning of the road and the landscape itself. 2. A scientifically based analysis and correct choice of landscape design elements in the operation of the road will reduce the dynamics of slope phenomena, the number of accidents, the cost of road maintenance, which contribute to improving safety on mountain roads.

scholarly journals INVESTIGATION INTO TRAFFIC FLOWS ON HIGH INTENSITY STREETS OF VILNIUS CITY

Transport ◽  
2010 ◽  
Vol 25 (3) ◽  
pp. 244-251 ◽  
Author(s):  
Laura Žiliūtė ◽  
Alfredas Laurinavičius ◽  
Audrius Vaitkus
Keyword(s):  
Traffic Safety ◽  
Traffic Volume ◽  
Capital City ◽  
State Enterprise ◽  
Traffic Intensity ◽  
Road Maintenance ◽  
Traffic Flows ◽  
The Road ◽  
Maintenance Program ◽  
Road Research Laboratory

The measurements and analysis of traffic intensity were performed in the capital city – Vilnius, the largest urban area in Lithuania. Vilnius is a centre of business, industry and tourism, and therefore traffic intensity remains the highest in this part of the country. The intensity of vehicle traffic is not only generally calculated but also simultaneously classified which means is divided predefining vehicles into beforehand established categories. Data on traffic flows are used in a road maintenance program for calculating and assessing air pollution, ensuring traffic safety, regulating traffic flows etc. The article presents the methods for measuring traffic intensity which are and were used for calculating traffic intensity not only in the streets of Vilnius but also across Lithuania. Data on vehicle intensity and classification are collected either using technologies (loop and tube detectors, counters and video detectors) or expressing them visually. The article presents the dynamics of changes in the traffic volume on the roads of Lithuania for the period 2000–2009. Also, this article examines traffic intensity of all transport means, including trucks in the permanent traffic volume measuring stations that were installed near the roads in Vilnius zone (data on traffic for the period 2005–2009) and the streets of Vilnius city (data on traffic for the period 2007–2009). Data on traffic intensity were obtained by the Road Research Laboratory of the Road Department of Vilnius Gediminas Technical University in cooperation with the State Enterprise Transport and Road Research Institute (TRRI).

scholarly journals ASSESSMENT OF SPECIAL PLANS AND TECHNICAL DESIGNS WITH REGARD TO TRAFFIC SAFETY

2009 ◽  
Vol 15 (4) ◽  
pp. 411-418 ◽  
Author(s):  
Donatas Čygas ◽  
Vilma Jasiūnienė ◽  
Mantas Bartkevičius
Keyword(s):  
Traffic Safety ◽  
Road Safety ◽  
Road Construction ◽  
Road User ◽  
The Road ◽  
Safety Improvement ◽  
Improvement Measures ◽  
Road Safety Audit ◽  
Road Safety Audits ◽  
Made In

Traffic safety situation in Lithuania, despite the progress made in 2008, is still not good enough compared to the other European Union countries. Therefore, Lithuania implements the traffic safety improvement measures affecting all the elements of the traffic safety system “Road user‐road‐vehicle”. In 2008 Lithuania started implementing the road safety audit procedure which substantially contributes to the improvement of safety situation on Lithuanian roads. This article gives the analysis of road safety audits of special plans and technical designs for road construction and reconstruction in Lithuania, makes the analysis of the main deficiencies of plans and designs and gives recommendations for their elimination. Santrauka Eismo saugumo situacija Lietuvoje, nepaisant 2008 m. pasiektos pažangos, vis dar yra nepakankamai gera, palyginti su kitomis Europos Sąjungos šalimis. Atsižvelgiant į tai, Lietuvoje įgyvendinamos eismo saugumo gerinimo priemonės, darančios įtaką visiems eismo saugumo sistemos „Eismo dalyvis–kelias–transporto priemonė“ elementams. Lietuvoje 2008 m. buvo pradėta taikyti kelių saugumo audito procedūra, kuri prisideda prie eismo saugumo gerinimo Lietuvos automobilių keliuose. Straipsnyje pateikta Lietuvoje atliktų specialiųjų planų ir automobilių kelių tiesimo bei rekonstrukcijos techninių projektų kelių saugumo auditų analizė, išanalizuoti pagrindiniai planų ir projektų trūkumai, pateiktos rekomendacijos jiems šalinti.

scholarly journals Low-Cost Road Construction and Rehabilitation in Unstable Mountain Areas

2021 ◽  
Vol 9 (9) ◽  
pp. 1152-1156
Author(s):  
Manish Jagannath Datar
Keyword(s):  
Traffic Safety ◽  
Financial Management ◽  
Construction Projects ◽  
Road Traffic ◽  
Low Cost ◽  
Road Construction ◽  
Research Problem ◽  
Mountain Areas ◽  
The Road ◽  
Road Traffic Safety

Abstract: The mountain roads are impacted by social, environmental and economic challenges. The financial management around the road construction and rehabilitation requires fine management and administrative skills to be done effectively by the local and the federal authorities. The objective of this study is to understand the factors affecting the low-cost road construction and rehabilitation in the unstable mountain areas and to analyze the solutions to the specific barriers. The materials and methods used here is a best evidence review focusing on the existing literature that emphasizes on the above-mentioned research problem. Global evidence has been used in order to draw a greater idea and explanation about the research topic. The results focus on the importance of technology leadership, financial management, risk control and mitigation, sociocultural benefits and socioeconomic scalability of the low-cost road construction and rehabilitation projects. The workforce management and stakeholder relations are very important as well for the effective running of the construction projects without any interference. The partnerships between the public and the private organizations is very much vital for ethical and regulatory compliances which is one of the major findings of the study. The sociocultural impact and the road traffic safety considerations are to be assessed properly in order to prevent and mitigate any project risk which is also a very important finding.

scholarly journals Identification Of Inhibiting Factors for Road Construction Using Sem Application In Kaway XVI Sub-District

2021 ◽  
Vol 1 (4) ◽  
pp. 77-83
Author(s):  
Muhammad Isya ◽  
Meidia Refiyanni ◽  
Muhajir Muhajir
Keyword(s):  
Structural Equation ◽  
Road Construction ◽  
Service Condition ◽  
Economic Life ◽  
Equation Modeling ◽  
Road Maintenance ◽  
The Road ◽  
Inhibiting Factors ◽  
Positive Effect ◽  
Correlation Number

Road construction is one thing that is always in line with technological advances and human thinking. Because the road is an important facility for humans, in order to reach an area. Continuous use of the road will reduce the service life of the road to the economic life of the road. To restore the service condition of the road, it is necessary to carry out road maintenance. Kaway XVI Sub-district is one of the connecting lines for Pidie Regency - West Aceh Regency, the road will continue to be built and maintained to support the agricultural and fishery sectors. The purpose of this study was to identify the inhibiting factors for road construction and maintenance as well as the relationship between these factors and indicators in Kaway XVI District using Structural Equation Modeling (SEM). The results of the study indicate that the quality factor has a positive effect on Spatial Planning and the Environment (TRL), and financing with a correlation number of 0.25 and 0.17. Regulations and Policies (PK) have a positive effect on financing of 0.60. Quantity has a positive effect on politics with a correlation number of 0.07. Politics has a positive effect on Regulations and Policies (PK) with a correlation number of 0.73, but negatively on TRL with a correlation number of -0.09. TRL has a positive effect on Human Resources (HR) with a correlation number of 0.81. HR has a significant positive effect on politics with a correlation of 0.67. Based on the research path diagram, the most decisive indicators both in quality and quantity for the construction and maintenance of roads in support of the Agriculture and Fisheries Sector are TRL, Financing, Politics and PK.

scholarly journals ANALISIS TERHADAP IMPLEMENTASI KEBIJAKAN PENGELOLAAN JALAN DI KABUPATEN BANYUMAS

2012 ◽  
Vol 12 (2) ◽  
Author(s):  
Sri Hartini ◽  
Setiajeng Kadarsih
Keyword(s):  
Road Construction ◽  
Management Policy ◽  
Road Maintenance ◽  
The Road ◽  
Goods And Services ◽  
Maintenance Factors ◽  
Road Management ◽  
Maintenance Program ◽  
Periodic Maintenance ◽  
The Government

Basically, the management of roads expected to be able to meet the needs of safe, convenient, and efficient for transportation of goods and services. But in reality, the road management policy in the regional autonomy were still did not meet expectations. Based on the research, the policy of road management in Banyumas are roads construction and road maintenance program. Road construction are conducted to increasing and widening of roads and paving, while road maintenance are done through regular maintenance and periodic maintenance. Factors that influence the policy are legal substance that have not been set as a whole regarding the management of roads, law enforcement which still have its main office in the policyled, facility factor that were not optimal, the society that tend to release responsibility to the government, and permissive factors. Key words: policy, road management and legal factors

Blast furnace slag in road construction and maintenance

2021 ◽  
Vol 2021 (23) ◽  
pp. 53-59
Author(s):  
László Gáspár ◽  
◽  
Zsolt Bencze ◽  
Keyword(s):  
Blast Furnace ◽  
Best Practices ◽  
Blast Furnace Slag ◽  
Road Construction ◽  
Cost Effective ◽  
Road Maintenance ◽  
The Road ◽  
Maintenance Techniques ◽  
Furnace Slag ◽  
By Products

Introduction. There is a global trend to increase the sustainability of road construction and maintenance technologies. The growing use of various industrial by-products as economical and eco-friendly construction and maintenance techniques can be observed in many countries.Problem Statement. The utilization of various forms of blast furnace slag in the road sector can be cost effective, however, several special technological measures have to be taken.PurposePresenting best practices for the use of blast furnace slag in road construction and maintenance techniques based on Hungarian and other decade-long experiences.Materials and Methods. The main types investigated are air-cooled blast furnace slag, expanded or foamed slag, pelletized slag, and granulated blast furnace slag. The utilization areas in road sector: asphalt layers, surface treatments, rut repair, hydraulically bound pavement layers, unbound base layers, frost protection layer, subgrade, cement production.Results. Presenting best practices for the use of blast furnace slag in road construction and maintenance can be beneficial for the experts of countries with limited experience in the field. Keywords: blast furnace slag, industrial by-products, road construction, road maintenance, environmental protection

scholarly journals A stress-strain state analysis of the road transport works foundations on seasonally freezing soils

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Anatoliy Permikin ◽  
Igor Ovchinnikov ◽  
Anastasiya Gricuk
Keyword(s):  
Traffic Safety ◽  
Road Transport ◽  
Transport Infrastructure ◽  
Fine Aggregate ◽  
Negative Consequences ◽  
Soil Thickness ◽  
The Road ◽  
Operational Characteristics ◽  
On The Road ◽  
Frost Boil

This article discusses the road transport works foundations when they are located in the seasonally freezing soils zone. Some culvert aqueduct utilized structures were considered and analyzed as an example, in the scope of most common structures on the road network and that also has an insignificant weight. Some constructive solutions disadvantages of these pipes were pointed out. It is noted that the operational characteristics of nonfrost-susceptible soil decrease in the watercourse filtering process and settling small particles and reported the dependence of the relative soil frost boil on the fine aggregate percentage. As an example of the frost boil forces influence, a typical culvert aqueduct design is considered. The calculation of axial and tangential heaving forces that affect the crown of tube is performed, assuming that the bedding soil is contaminated. Based on the calculation, rise calculated value dependence graphs of the unstressed base on the soil dampness and the heaving soil thickness, and the heaving pressure on the soil dampness are presented here. Due to the insufficient value of the forces holding back against lifting, possible negative consequences of the frost boil impact forces are presented, this affects not only the culvert aqueduct operational characteristics but also the roadbed smoothness and traffic safety. Thus, the need for additional measures to prevent soil swelling under the pipe head is justified. Recommended measures to prevent excessive deformations during frost boil, as well as modern aspects of the development of such technologies, are considered. Conclusions are made about their applicability and feasibility in relation to small artificial structures of transport infrastructure.

Integration of Comprehensive Environmental and Social Measures into Low-Volume Road Design for the Hills of Nepal

2003 ◽  
Vol 1819 (1) ◽  
pp. 118-126 ◽  
Author(s):  
Matt Corbett ◽  
Juan Gaviria
Keyword(s):  
Social Issues ◽  
Low Cost ◽  
Road Construction ◽  
Local Environment ◽  
Development Project ◽  
Road Maintenance ◽  
The Road ◽  
Road Design ◽  
Planning Project ◽  
Compensation Program

Road construction through Nepal’s hilly and mountainous terrain has historically had a significant impact on the local environment and land-owners, primarily because of the steep and often unstable terrain traversed, monsoonal climate, necessity for low-cost roads, and no landowner compensation for compulsorily acquired land. The design phase of the Road Maintenance and Development Project sought to incorporate comprehensive environmental and social measures into the design of low-cost roads in the western hills of Nepal to achieve more stable and lower-impact roads. The project involved the design of 196 km of new roads and 253 km of upgrading to existing roads by integrating engineering, environmental, social, and economic factors throughout the design process. The project began with the screening of candidate project roads on the basis of economic, environmental, and social factors by using a weighted scoring system to select those roads that would be most advantageous in relation to passenger and goods transport and associated economic development, while minimizing adverse environmental and social impacts. Proposed new road alignments were refined primarily through a walkover survey by a multidisciplinary team, ensuring that environmental and social issues were incorporated into this key stage of road design, when significant impacts can be avoided. Detailed road design incorporated comprehensive environmental management and social planning through integrated planning. Project outcomes include road designs that would increase road stability and have fewer construction impacts and the first comprehensive land and property compensation program for road construction in Nepal.

scholarly journals APLIKASI ANALYTICAL HIERARCHY PROCESS (AHP) DALAM PENENTUAN SKALA PRIORITAS PENYELENGGARAAN JALAN DI KECAMATAN CIBINONG KABUPATEN BOGOR

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Punti Minesa ◽  
Hermanto Siregar ◽  
Manuwoto Manuwoto
Keyword(s):  
Road Construction ◽  
Road Maintenance ◽  
Technical Approach ◽  
The Road ◽  
The People ◽  
The Right ◽  
Construction Strategies ◽  
Hierarchy Process ◽  
Transportation Route

ABSTRACTRoad management activities intended to allow roads to work as it role as supporting the growth of economic. To achieve these objectives, the roads should always be in steady condition. Road management activities should be planed based on the scale of priorities according to the importance of the road, so that allocation of budgeted funds can be effective. Thus the need to review the prioritization of road maintenance in accordance with the need of the community. The method used in this study is Analytical Hierarcy Process with the criteria used are: The function of the services, The aspirations of the people, Political aspirations and Technical approach. Based on the result of AHP, the most decisive criteria in District Cibinong road handling,  is the criterion of service functions, in turn, sub criteria transportation route serving and serving terminal / sub-terminals are the two sub criteria that highly prioritized. Furthermore there are four (4) strategies in carrying out road maintenance activities on roads that become priorities, namely: Maintain the road conditions; Strategies to improve the quality of road construction; Strategies to optimize the width of pavement and Strengthening the right of way on roads that do not meet the requirements.Keywords: Road District, Priority Scale, AHP MethodeABSTRAKUsaha penyelenggaraan jalan ditujukan agar ruas jalan dapat berfungsi sesuai perannya sebagai penunjang pertumbuhan ekonomi. Untuk mencapai tujuan tersebut diperlukan ruas jalan yang selalu ada dalam kondisi mantap. Kegiatan penyelenggaraan jalan harus disusun berdasarkan skala prioritas sesuai dengan tingkat kepentingan dari ruas jalan, sehingga alokasi dana yang dianggarkan menjadi tepat sasaran. Obyek penelitian meliputi 27 ruas jalan kabupaten di Kecamatan Cibinong, bertujuan untuk menentukan strategi dan program alternatif yang dapat dilaksanakan oleh Pemerintah Kabupaten Bogor dalam menyelenggarakan penanganan jalan. Dalam kondisi keterbatasan dana sulit menentukan prioritas penangannnya. Maka diperlukan prioritas penanganan jalan sesuai dengan kebutuhan masyarakat. Metode yang digunakan adalah metode Analitycal Hierarcy Process dengan kriteria yang digunakan adalah (1) fungsi layanan, (2) aspirasi masyarakat, (3) aspirasi politis dan (4) pendekatan teknis. Berdasarkan hasil AHP, kriteria yang paling menentukan adalah kriteria fungsi layanan, selanjutnya sub kriteria melayani trayek angkutan dan terminal/sub terminal adalah dua sub kriteria yang sangat diprioritaskan. Selanjutnya terdapat 4 (empat) strategi dalam menyelenggarakan kegiatan penanganan jalan, yaitu: (1) Mempertahankan kondisi jalan pada ruas jalan prioritas; (2) Strategi meningkatkan kualitas konstruksi pada ruas jalan prioritas; (3) Strategi mengoptimalkan lebar perkerasan pada ruas jalan prioritas dan (4) membenahi ruang milik jalan (Rumija) pada ruas jalan yang belum memenuhi ketentuan.Kata Kunci: Jalan Kabupaten, Skala Prioritas, Metode AHP

scholarly journals Impacts of Different Driving Automation Levels on Highway Geometric Design from the Perspective of Trucks

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Shuyi Wang ◽  
Bin Yu ◽  
Yang Ma ◽  
Jinzhou Liu ◽  
Wen Zhou
Keyword(s):  
Traffic Safety ◽  
Geometric Design ◽  
Driving Safety ◽  
Innovative Technology ◽  
Design Elements ◽  
The Road ◽  
Positive Effects ◽  
Sight Distance ◽  
Automation Systems ◽  
On The Road

Truck automation is emerging as an innovative technology with benefits in traffic safety and the economy to revolutionize freight traffic. Despite these benefits, the potential negative or positive effects of different driving automation levels (from no automation to full automation) on highway geometry remained to be determined. In this study, differences related to sight distance characteristics among varied automation levels were firstly discussed and calibrated. Then, seven analysis scenarios of typical levels were proposed. Based on each level with tailored characteristics, the current models of geometric design elements including the required stopping sight distance, horizontal sight line offset, and lengths of vertical curves were revised. Finally, impacts of each level on computed values of those elements were evaluated. Results show that high or full driving automation could substantially lower the requirements of geometric design. Active safety systems have a similar role but with less significant effects. Differently, the driver assistance and partial or conditional automation systems put a higher demand on the road geometric design in terms of driving safety. Outcomes of this study can be used to design real-world geometry of dedicated lanes and provide a methodological basis for the operation of different driving automation features.

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