scholarly journals Durability of Road and Bridge Concrete and Spray-Coating Waterproof Material

2021 ◽  
Vol 31 (4) ◽  
pp. 227-235
Author(s):  
Liang Wei
Keyword(s):  
Bridge Deck ◽  
Water Pressure ◽  
Spray Coating ◽  
Internal Force ◽  
Drain Pipe ◽  
The Road ◽  
Before And After ◽  
High Elongation ◽  
Research Gap ◽  
The Impact

Different from traditional waterproof methods for road and bridge concrete, the spray-coating waterproof material can effectively prevent rainwater and other corrosive liquids from entering the concrete structure, and it has a few functional advantages such as anti-carbonization, resistance to sulfate attack, and high elongation. Existing studies have discussed the impact of the microstructure of waterproof material on the structure of waterproof coating, the optimization of the mix ratios of waterproof material, and the influencing factors of the waterproof performance of waterproof material, etc., however, few researches have concerned about the mechanical properties of concrete after coated with the spray-coating waterproof material. Therefore, to fill in this research gap, this paper researched the durability of road and bridge concrete and the spray-coating waterproof material. At first, it analyzed the bridge deck water pressure and the internal force of the drain pipe structure under multiple drainage methods, and calculated the water pressure at the gutter inlet, the stress, and the permeability coefficient of the waterproof coating. Then, this paper elaborated on the experimental methods for measuring the durability of the road and bridge before and after coated with the spray-coating waterproof material, and introduced the methods for testing the waterproof material and the concrete. At last, this paper gave the corresponding experimental results, the analysis, and the conclusion.

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

scholarly journals Impact of the Kunming–Bangkok Highway on Land Use Changes along the Route between Laos and Thailand

Land ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 991
Author(s):  
Fangyu Zheng ◽  
Jiuming Huang ◽  
Zhiming Feng ◽  
Chiwei Xiao
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Sustainable Use ◽  
Road Construction ◽  
Buffer Zone ◽  
Scientific Basis ◽  
The Road ◽  
Cross Border ◽  
Before And After ◽  
The Impact

Road construction fragments the landscape, reduces connectivity, and drives land use changes. To our knowledge, little is known about the scope and intensity of the effects of cross-border roads on changes in land use. Here, with the land use data products provided by the US Agency for International Development’s SERVIR Mekong project, using the GIS-based spatial analysis to quantitatively analyze and compare the effects of the cross-border road on land use changes within a 30 km buffer area along the Kunming–Bangkok Highway between Laos and Thailand. The results show the following: The greater the distance was from the highway, the smaller were the overall changes in land use within the buffer zone. A comparison of the situation before and after the road was opened in 2013 revealed significant differences in the most influential land use types of agricultural expansion, i.e., from 47.07% to 52.07% (the buffer zone was 1 km). In particular, 57.32% (1381.93 ha) and 40.08% (966.46 ha) of the land occupied by forests had been converted into land for plantation and agriculture, respectively, from 2013 to 2018. The scope of the impact of the operational route on the dynamics of land use was inconsistent. The largest impact before the road became operational was within 4 km of the buffer zone (0.26 to 0.24). Once the road had been opened, the range of its impact was beyond 10 km (0.63 to 0.57). The work here can provide a scientific basis for regional transportation planning and the sustainable use of land resources.

scholarly journals IMPACT ANALYSIS OF THE PRESENCE OF MODERN MALL MARKET TO TRADITIONAL MARKET IN BENGKULU CITY

2017 ◽  
Vol 16 (2) ◽  
pp. 191-200
Author(s):  
Elni Mutmainnah ◽  
Fithri Mufriantie
Keyword(s):  
Durable Goods ◽  
Impact Analysis ◽  
Test Method ◽  
Durable Good ◽  
Profit Margins ◽  
The Road ◽  
Traditional Markets ◽  
Traditional Market ◽  
Before And After ◽  
The Impact

The presence of modern market in Bengkulu city indirectly affects the shopping pattern of Bengkulu city community which in turn will affect the performance of traders in traditional markets. This research is conducted to investigate the impact of modern market presence on the traditional market with parameter observed including the turnover amount of merchants, merchandise turnover, number of traders, number of trader hours, profit margins of traditional traders in Bengkulu city before and after the establishment of a modern market. The population in this study are oil, sugar and durable goods traders and fruit traders in traditional markets, which are still actively trading before and after the establishment of modern traditional markets. Twenty fife durable good traders and 15 fruit traders are selected randomly. Data is analyzed using Paired t-test method. The results show that there are differences in turnover, opening hours, and profit margins of traditional traders in Bengkulu city before and after the establishment of a modern market. Suggestion in this research is to enforcediscipline and control of officer routinely to the illegal traders not to trade along the road and sidewalk.Keywords: impact, turnover, opening hours, profit margins

scholarly journals Analysis of Incentives to Eco-Driving for Car Rental Companies’ Customers

2020 ◽  
Vol 12 (24) ◽  
pp. 10579
Author(s):  
Michał Adamczak ◽  
Adrianna Toboła ◽  
Jadwiga Fijałkowska ◽  
Piotr Cyplik ◽  
Maciej Tórz
Keyword(s):  
Road Traffic ◽  
Negative Impact ◽  
Survey Method ◽  
Short Term ◽  
The Road ◽  
Car Rental ◽  
Car Wash ◽  
Research Gap ◽  
On The Road ◽  
The Impact

The problem of road traffic is one of the key challenges that cities will have to deal with in the future. It is also a problem directly related to the concept of sustainable development. Reducing the negative impact of road traffic in future cities can be achieved through cooperation in the following areas: social—shaping customer behavior and habits, economic—changing attitudes towards owning a car, and environmental—aimed at reducing the vehicle’s impact on the natural environment. A literature review was used to identify the research gap concerning the impact of the incentive system on increasing the environmental performance of drivers under short-term rental. Referring to the research gap, the main goal of the article is to identify the attractiveness of eco-driving incentives for drivers under short-term rental. The study used the survey method. The study was based on 323 completed questionnaires (female—122 and male—201). The following methods were also used in the analysis of the results: Anderson–Darling, Mood’s Median test and Kruskal Wallis multiple pairwise comparisons. The evaluation of the attractiveness of the incentive to eco-driving depends on the characteristic of the client who rents the car. Thus, it is possible to shape incentive systems for car rental customers that can shape their positive behavior on the road. Among the most attractive incentives for eco-driving in a rented car are: the possibility of upgrading a car in the next rental, discount for future rental and free car-wash.

scholarly journals USE OF MACHINE LEARNING TECHNIQUES FOR RAPID DETECTION, ASSESSMENT AND MAPPING THE IMPACT OF DISASTERS ON TRANSPORT INFRASTRUCTURE

2019 ◽  
Vol XLII-3/W8 ◽  
pp. 195-200
Author(s):  
P. M. Kikin ◽  
A. A. Kolesnikov ◽  
A. M. Portnov
Keyword(s):  
Emergency Services ◽  
Road Traffic ◽  
Transport Infrastructure ◽  
Machine Learning Techniques ◽  
Automatic Assessment ◽  
The Road ◽  
Learning Techniques ◽  
Before And After ◽  
Evacuation Plan ◽  
The Impact

<p><strong>Abstract.</strong> Road traffic infrastructure plays a key role in emergency management. It allows to evacuate people from the affected area in the shortest possible time, as well as to organize rapid emergency response. However, disasters often cause the destruction of roads, railways and pedestrian routes, which can significantly affect the evacuation plan and availability of facilities for emergency services, which increases the response time and thereby increases the losses. Therefore, it is very important to quickly provide emergency services with necessary post-disaster maps, created on the principles of rapid mapping. Change detection based on geospatial data before and after damage can make rapid and automatic assessment possible with reasonable accuracy and speed. This research proposes a new approach for detecting damage and detecting the state and availability of the road network based on the satellite imagery data, unmanned aerial vehicles (UAVs) and SAR using various methods of image analysis. We also provided an assessment of the resulting combined mathematical model based on neural networks and spatial analysis approaches.</p>

Analysis on Mechanics of Complex Concrete about Steel Fiber and Polypropylene Steel-Wire-Like Fiber before and after Freeze-Thaw Cycles

2011 ◽  
Vol 105-107 ◽  
pp. 1092-1095
Author(s):  
Dong Fang Huo ◽  
Er Long Zhang ◽  
Qin Zhen Li
Keyword(s):  
Bridge Deck ◽  
Steel Fiber ◽  
Mechanical Performance ◽  
Steel Wire ◽  
Freeze Thaw ◽  
Before And After ◽  
Bridge Structures ◽  
The Impact ◽  
Bridge Deck Pavement ◽  
Pavement Material

Bridge deck pavement material requires sufficient compressive strength, flexural strength, and bending toughness. The bridge structures inevitably bear the impact of the external adverse environment, so pavement layer material should also have impermeability, freeze-thaw resistance and corrosion resistance. This text studies complex concrete of steel fiber and polypropylene steel-wire-like fiber, and compares different dosage and type of fiber on mechanical performance of concrete. The results show that complex fiber concrete has better mechanical performance and durability, and is an ideal choice as bridge deck pavement material.

scholarly journals Horizontal drilling drainage as a preventive measure for water induced landslide risk reduction: A case study from Sindhuli Road, Section I, Nepa

2018 ◽  
Vol 55 (1) ◽  
pp. 109-122
Author(s):  
Shanmukhesh Chandra Amatya ◽  
Mikihiro Mori
Keyword(s):  
Risk Reduction ◽  
Water Pressure ◽  
Annual Rainfall ◽  
Landslide Risk ◽  
Horizontal Drilling ◽  
The Road ◽  
Road Section ◽  
Landslide Mass ◽  
The Impact ◽  
Landslide Risk Reduction

Nepal is a mountainous country which covers about 83% area of the Higher Himalaya, mountain and hills with rugged topography and highly tectonic geology. Most of those areas are prone to sediment related water induced disasters such as slope failure, debris flow, and landslide which are triggered due to torrential rainfall during the monsoon rainy season, and that causes the loss of lives and properties, infrastructures and environmental degradation each year. The annual rainfall ranges from 2000 to 3000 mm (in the Central Region of Nepal). The natural disasters cannot be prevented completely but efforts can be made for mitigating the impact of the disasters. Among the mitigation measures of water induced landslide disasters, the Horizontal Drilling Drainage Technology is one of the most effective counter measures of landslide risk reduction. The main purpose of this technology is to release the pore water pressure in the landslide mass by reducing the groundwater level. The landslide disaster prone Kamala Mai village area lies along the Sindhuli road section I, the National Highway, in Sindhuli District, Nepal which was generating subsidence and creeping of the road each year since many years back. This method was applied in the Sindhuli road Section I, Chanaige 29+300, Kamala Mai Village area. The result obtained from the application of the method shows an effective achievement to the Sindhuli road stability and the road users as well. Recommendation has been made to replicate the technology in other places of the country also in similar environment.  

Traffic Demand Forecast and Control in Large-Scale Activities

2012 ◽  
Vol 209-211 ◽  
pp. 998-1003
Author(s):  
Liang Zhi Zhang ◽  
Lei Jia ◽  
Mei Xia Wang
Keyword(s):  
Traffic Control ◽  
Large Scale ◽  
Control Measures ◽  
Traffic Load ◽  
Demand Forecast ◽  
Traffic Demand ◽  
The Road ◽  
Traffic Forecasting ◽  
Before And After ◽  
The Impact

In order to alleviate traffic load during large-scale activities held in cities, the concepts of traffic planning is applied in this paper. To forecast traffic demand of large-scale activities, the traditional four-stage method is imposed. Traffic forecasting model is set up in simulation tool TransCAD, and then traffic loads are gained in road around large-scale activities. Based on the result of simulate, appropriate measures are taken and re-assignment is implemented. By comparing simulation results between before and after the implementation of traffic control measures, the impact of large-scale activities to the road network and effectiveness of control measures are verified in the paper.

scholarly journals Design of Cross-Section on Roads Through Built-Up Areas

2012 ◽  
Vol 58 (3) ◽  
pp. 243-257
Author(s):  
M. Kiec ◽  
M. Tracz ◽  
S. Gaca
Keyword(s):  
Cross Section ◽  
Road Traffic ◽  
Travel Speed ◽  
The Road ◽  
Suburban Areas ◽  
Road Section ◽  
Traffic Performance ◽  
Before And After ◽  
Section Type ◽  
The Impact

Abstract The research into the use of less costly modifications of road links and networks, and changes in the service of road surroundings aimed at ensuring an improvement of through traffic performance in suburban areas, and on roads passing through built-up areas as small localities, with application of simulation model, is presented in this paper. From among possible designs, the authors investigated and presented the effectiveness of two, i.e. implementation of an additional multifunctional median lane in the road cross-section, and construction of service roads with different locations of intersections (end or middle of the road section).The analysis is focused on the impact of such changes on traffic performance and road safety. The authors analysed travel speed, delay and share of platoon traffic on a uniform sections of the road for different types of road surroundings service. The study presents the results of analyses of road network before and after modification, and the assessment of:• impact of access points density and level of their use on road traffic performance,• impact of driving through road sections in built-up area on building platoon traffic,• impact of change in the cross-section type on traffic performance.

scholarly journals Impact of the Application of Grinding and Grooving of a Concrete Road Pavement on Noise Level in the Environment

2021 ◽  
Vol 1203 (3) ◽  
pp. 032106
Author(s):  
Artur Nowoświat ◽  
Rafał Żuchowski ◽  
Michał Bukała
Keyword(s):  
Noise Level ◽  
Traffic Noise ◽  
The Road ◽  
Road Pavement ◽  
Road Section ◽  
Close Proximity ◽  
Before And After ◽  
Reduction Methods ◽  
On The Road ◽  
The Impact

Abstract A growing number of cars and trucks moving around on our roads contributes to the rise of noise level to which people in their immediate vicinity are exposed. The regulations in force impose on road managers the obligation to limit road noise to the permissible level in compliance with the applicable regulations. The obligation to ensure protection against traffic noise applies equally to newly designed roads and to the existing ones which are being extended or modernized. This type of noise is generated principally by the interaction between tires and road pavement. Therefore, the design and construction of quiet pavements plays a very important role in reducing environmental noise and may in some cases be an alternative to other noise reduction methods. The article undertakes the task of assessing the impact of grinding technology and grooving technology of the existing concrete pavement on the reduction of noise propagation in the environment. The article involves the tests of road pavement made of cement concrete. The tests were carried out on the road section before and after the above-mentioned works, using the method similar to Close Proximity Method (CPX) and the noise measurement method at road edge at a distance of 10.0 m and height of 4.0 m. The obtained results were illustrated with a noise range map for the modified and standard road pavements.

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