scholarly journals EVALUASI BENTUK DAN FUNGSI POHON PADA LANSKAP JALAN VETERAN KOTA MALANG JAWA TIMUR

2020 ◽  
Author(s):  
Oktaviana Hermince Bere ◽  
Rizki Alfian ◽  
Nuraini Nuraini
Keyword(s):  
Noise Reduction ◽  
Survey Methods ◽  
Public Works ◽  
Pollution Reduction ◽  
Plant Management ◽  
East Side ◽  
Landscape Plant ◽  
On The Road ◽  
Spiritual Satisfaction ◽  
Sustain Ability

Plants on the road landscape have various uses, both architectural functional, ecological and aesthetic aspects. Functional means it can be used optimally and aesthetically and can be interpreted as something beautiful. In terms of aesthetics, trees can be enjoyed in terms of shape, color, aroma, texture, roots, stems, leaves, flowers, and fruit that can provide spiritual satisfaction to humans. The purpose of this study Is to identify and evaluate the shape and function of trees, using survey methods with quantitative parameters namely pollution reduction, noise reduction, and physical barriers. The parameters are adjusted to the criteria for road landscape plant functions as determined by the Department of Public Works of the Directorate General of Highways (1996). The presence of plants on the Green Lane landscape of the Veterans Road has important significance in relation to security, safety and comfort of road users and the sustain ability of the surrounding environment. Eased on the results of the evaluation conducted, it can be concluded that the quantity and quality of plants on the site from the aspect of its function as a pollution reduction, noise reduction and room divider and aesthetic aspects have not fully met the criteria. Pollution reducing parameters, on the East side 73.8%; Middle Park 86.46%; and West 75.3615, with good to very good levels. As a silencer, plants in the East 50.5%; Middle Park45.65%; and West 61.65%, with moderate to good levels. As a barrier, on the east side 66.00%; Middle Park 64.2%; and West 63.00%, with good levels. As for aesthetics in crop selection, on the east side 22.89%; Middle Park 25.35%; and West 17.74%, with poor ranking. Plant management on the East side is worth 76.8%; Middle Park 87.36%; and West 74.22%, with good to very good levels.

scholarly journals EVALUASI BENTUK DAN FUNGSI POHON PADA LANSKAP JALAN VETERAN KOTA MALANG JAWA TIMUR

2020 ◽  
Author(s):  
Oktaviana Hermince Bere ◽  
Rizki Alfian ◽  
Nuraini Nuraini
Keyword(s):  
Noise Reduction ◽  
Survey Methods ◽  
Public Works ◽  
Pollution Reduction ◽  
Plant Management ◽  
East Side ◽  
The Road ◽  
Landscape Plant ◽  
On The Road ◽  
Spiritual Satisfaction

Plants on the road landscape have various uses, both architectural, functional, ecological and aesthetic aspects. Functional means it can be used optimally and aesthetically and can be interpreted as something beautiful. In terms of aesthetics, trees can be enjoyed in terms of shape, color, aroma, texture, roots, stems, leaves, flowers and fruit that can provide spiritual satisfaction to humans. The purpose of this study is to identify and evaluate the shape and function of trees, using survey methods with quantitative parameters namely pollution reduction, noise reduction and physical barriers. The parameters are adjusted to the citeria for road landscape plant functions as determined by the Department of Public Works of the Directorate Generalof Highways (1996). The presence of plants on the Green Lane landscape of the Veterans Road has important significance in relation to security, safety and comfort of road users and the sustainability of the surrounding environment Based on the results of the evaluation conducted, it can be concluded that the quantity and quality of plants on the site from the aspect of its function as a pollution reduction, noise reduction and room divider and aesthetic aspects have not fully met the criteria. Pollution reducing parameters, on the East side 73.8%; Middle Park 86.46%; and West 75.36%, with good to very good levels. As a silencer, plants in the East 50.5%; Middle Park 45.65%; and West 61.65%, with moderate to good levels. As a barrier, on the east side 66.00%; Middle Park 64.2%; and West 63.00%, with good levels. As for aesthetics in crop selection, on the east side 22.89%; Middle Park 25-35%; and West 17.74%, with poor ranking. Plant management on the East side is worth 76.8%; Middle Park 87.36%; and West 74.22%, with good to very good level.

AN IMPROVED ARMORED VEHICLE KRAZ “FIONA” NOISE SILENCER

2019 ◽  
pp. 21-26
Author(s):  
Volodymyr Fedorov ◽  
Vasyl’ Yanovsky ◽  
Dmytro Kovalshuk
Keyword(s):  
Noise Reduction ◽  
Speed Of Sound ◽  
Acoustic Waves ◽  
Noise Level ◽  
Combustion Engine ◽  
Environmental Aspect ◽  
Exhaust Gases ◽  
Ecological Requirements ◽  
On The Road ◽  
Armored Vehicle

Ecological requirements for cars grow from year to year, both in the world as a whole, and in Ukraine in particular. This is especially true of noise pollution. Additionally, noise reduction becomes relevant, taking into account the conduct of military operations during the last 5 years on the territory of Ukraine. The war has caused a special need for military vehicles for which masking properties are vital. Noise is a serious disincentive factor. Therefore, its reduction for a military vehicle, apart from the environmental aspect, is of a purely military nature, that is, it is extremely important. The car has many sources of noise there are many ways to deal with them. One of the most powerful source of noise is the sleeping bag. This kind of noise is reduced by means of silencers of noise. The vast majority of silencer data in the basis of its design has a reactive (or resonant) muffler. To calculate the jet silencer you must know the speed of sound in the sleeping bags. In order to increase the acoustic efficiency of reactive and resonant mufflers of exhaust gases noise of the ICE of cars, an experimental method was proposed for determining the speed of sound in the sleighs. Implementation of the method is carried out by measuring the attenuation of acoustic waves. The noise level of the bedrooms is measured without silencer and silencer. Based on the data obtained, the noise reduction performance of the residual is established. From the well-known formula, based on the calculation of the efficiency of the silencing of a jet muffler, a formula is obtained for calculating the speed of sound in the sleeping quays. In this formula, all parameters are known: the level of silencer efficiency, the noise level of the sleeping, the ratio of areas of cross sections of the muffler and the inlet pipe and the length of the muffler. The sound speed thus established can continue to be used not only for engines of the type for which measurements and calculations were made, but also with a certain approximation for some other types of engines. This method provides high accuracy for determining the required parameter. In the given work on the example of the armored car KrAZ “Fiona” the calculation of efficiency increase of the reactive silencer is made due to the above-mentioned method. Also, the projected decrease in the external noise level of the KrAZ Armored Vehicle “Fiona” is considered by determining the speed of sound in the recesses on the trunk cycle on the road with acceleration up to speed of 50 km/h (75 km/h) and the movement with this speed, as well as when driving at a speed of 45 km/h. Keywords: transport, armored car, internal combustion engine, exhaust, exhaust gases, noise, source, acoustic efficiency, acoustic efficiency, speed of sound, jet muffler.

scholarly journals MANAJEMEN RISIKO PADA PELAKSANAAN PROYEK KONSTRUKSI GEDUNG PEMERINTAH DI KOTA DILI – TIMOR LESTE

1970 ◽  
Author(s):  
Octavio P.M Marques ◽  
I M. Alit K. Salain ◽  
I W. Yansen
Keyword(s):  
Construction Projects ◽  
Survey Methods ◽  
Building Construction ◽  
Public Works ◽  
Mitigation Measures ◽  
Project Implementation ◽  
Timor Leste ◽  
Implementation Period ◽  
The Government ◽  
The Cost

Building project as one of the construction services are filled with varying risks during the construction phase of the project implementation. At the stage of the project implementation, risks may arise either the risk of time, cost and those which affect the quality of the project. Therefore, we need to understand the risks at the construction phase and mitigation to the risks to meet in execution of project based on initial planning. The study was conducted to identify the risks in the implementation of construction projects of government buildings by using survey methods that aim to get the opinion of the respondents regarding the risks at implementation of the government building construction projects in the city of Dili - Timor Leste. Further, it was done a risk assessment to determine the major or main risks. Major risk is controlled through mitigation measures and allocation of risks to the parties directly involved in construction projects such as Project Owner, Technical Supervisor, Consultant Design, Consultant Supervision and Contractor. The analysis used in this study is a qualitative analysis. The results showed 64 risks identified in the implementation of construction projects there are 10 government buildings risks (16%) with an unacceptable category, 18 risks (28%) with the undesirable category, 28 risks (44%) with acceptable category and 8 risks (12%) with negligible category. Ownership of major / main risk to the parties directly involved in the implementation of construction projects such as the project owner, technical supervisor, consultant design, consultant supervision and contractors. The project Owner and Technical Supervision (Department of Public Works) is expected to further enhance the ability to manage projects so not throwing responsibility in managing government projects. consultant design and sonsultant supervision to be more careful in design till supervision during the implementation period so as to meet the cost, quality and time planned. Contractors are expected to further improve the performance of the building construction project.

scholarly journals Analysis Traffic Volume of Rigid Pavement Damage on Roads Badami Karawang

2020 ◽  
Vol 2 (2) ◽  
pp. 190-199
Author(s):  
Lutfi Abiansyah ◽  
Andri Irfan Rifai
Keyword(s):  
Social Relations ◽  
Hypothesis Test ◽  
Public Works ◽  
Motor Vehicles ◽  
Rigid Pavement ◽  
Simultaneous Effect ◽  
The Road ◽  
Road Pavement ◽  
Additional Layer ◽  
On The Road

The road was a means of land transport is very important to the social relations and economic goods and services, and with a population that is increasing in every year to year, increasing the number of vehicles passing on the road that there is, therefore, in need planning a safe way according to the function, volume, and nature of traffic. Road repairs cost a lot and this action is felt not quite right because remedies can not survive by age plans and in kutif of IDN Times in 2019 that the condition damages the highway in the district of Karawang based on data from the Department of Public Works and Spatial Planning (PUPR) Khanewal district, along with the road status 1937.53 kilometers of district roads in poor condition. (IDN Times, 2019). This study was conducted to assess how much influence the volume of vehicles to the damage occurred on roads Badami karawang at STA 0 + 000-0 + 500 and STA 2 + 250-2 + ​​750, to examine the above problems by analyzing data from LHR and road damage the method of Highways, then further by looking at the correlation between the volume of vehicles on the road destruction by using SPSS and to increase the strength of rigid pavement using cement concrete road pavement planning 2003 is an additional layer (overlay) using the rigid pavement. From the analysis and discussion get Simultaneous Effect Hypothesis Test results that the Sig. (0,000) <α (0.05) and f count (35.671)> F table (3.89) H0 is rejected. It can be concluded that the simultaneous effect of the Light Vehicle Road damage of 33.8%, the simultaneous effect of the Heavy Vehicle Road damage amounted to 47.7%, Motorcycles simultaneous effect on road damage by 12.1% and the simultaneous effect of Motor Vehicles not to road damage by 14.2%, the result of the identification of the type and class of road damage indicates that the need for administration of additional layer (overlay) as a treatment for damage to roads, based on the analysis of the design used road repair method with a design life of 10 years, namely: (Overlay) Rigid Pavement (Rigid Pavement) as thick as 18 cm .and of analysts earn fees at cost (overlay) Rigid Pavement (Rigid Pavement) Rp. 9,114,626,20 / segments.

scholarly journals Monetary Health Co-benefits and GHG Emissions Reduction Benefits: Contribution from Private on-the-road Transport

2021 ◽  
Author(s):  
Je-Liang Liou ◽  
Pei-Ing Wu
Keyword(s):  
Air Pollution ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Ghg Emissions ◽  
Road Transport ◽  
Pollution Reduction ◽  
Emissions Reduction ◽  
The Road ◽  
Hybrid Electric ◽  
On The Road

This is the first study to provide a systematic monetary benefit matrix, including greenhouse gas (GHG) emissions reduction benefits and air pollution reduction health co-benefits, for a change in on-the-road transport to low-carbon types. The benefit transfer method is employed to estimate the social cost of carbon and the health co-benefits via impact pathway analysis in Taiwan. Specifically, the total emissions reduction benefits from changing all internal combustion vehicles to either hybrid electric vehicles, plug-in hybrid electric vehicles, or electric vehicles would generate an average of US$760 million from GHG emissions reduction and US$2,091 million from health co-benefits based on air pollution reduction, for a total benefit of US$2,851 million annually. For a change from combustion scooters to light- or heavy-duty electric scooters, the average GHG emissions reduction benefits would be US$96.02 million, and the health co-benefits from air pollution reduction would be US$1,008.83 million, for total benefits of US$1,104.85 million annually.

scholarly journals On Street Parking Effect To Performance Of The Imam Bonjol Street In Palu City

2020 ◽  
Vol 1 (1) ◽  
pp. 58
Author(s):  
Nita Ayu Lestari ◽  
Rahmatang Rahman ◽  
Anas Tahir
Keyword(s):  
Survey Methods ◽  
Traffic Volume ◽  
Level Of Service ◽  
Traffic Jam ◽  
The Road ◽  
Public Facilities ◽  
Road Section ◽  
On The Road ◽  
Road Data ◽  
Parking Facilities

Traffic jam caused by a lots of vehicles which parked on the road has always been a problem on urban roads. The lack of parking facilities out of the road and a lot of generation due to public facilities such as bank, restaurants, pharmacies, shops, and health center, will have an impact on traffic jam on the Imam Bonjol road section. This research aim for determine the magnitude effect of parking on street to the road performance of the Imam Bonjol street. The data needed includes, highway geometric, collecting data obtained from the results of the surveys is data on traffic volume, side barriers, parking on the road data and speed data. The parking survey methods using plat number methods and the data was analysed using the MKJI 1997 calculation method. The results of this research indicate that parking on the road is affected the performance of the imam bonjol street. the amount of traffic volume on saturday at 20.00 - 21.00 WITA is 3034 vehicles/hour. Side barriers values obtained is 560.7 friction/hour with high conditions typical is commercial areas, high activities on the road side, so the value of capacity dropped from 4576 smp/hour before parking, to 2533 smp/hour after parking on the road. The value average speed of light vehicle on Saturdays for the west to east is 24,42 km/hour, while the east to west is 23,94 km/hour. In 2018 the DS value is 0.65 with the level of service C. Whereas in 2023 the performance increased to DS = 1,23 with the level of service F.

scholarly journals Analysis of Characteristics and Service Level Pedestrian Facilities in Region 5 Regional Military Night Market Surabaya

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Fuji Dwi Setiawan ◽  
Atik Wahyu
Keyword(s):  
Urban Areas ◽  
Survey Methods ◽  
Service Level ◽  
Flow Speed ◽  
Survey Method ◽  
Level Of Service ◽  
Linear Regression Method ◽  
The Road ◽  
Wide Range ◽  
On The Road

Pedestrians are people walking activities and is one of the elements of road users. Surabaya is a city which is the goal of society to travel and enjoy a wide range of diversity with the intent to purchase goods or just taste the food because there is one of the traditional market situated on the road Raden Wijaya or road Kesatriyan very crowded at night ie the market night kodam v Surabaya and in the present study was to determine the characteristics of pedestrians (flow, speed, density), determine the relationship between variables pedestrian movement and maximum value of variables and determine the capacity and service level pedestrian with analytical methods in use that method Greenshields. This research method used survey methods and analysis methods. Ie survey method, uses manual techniques of observation and data collection in the field, while the analysis method is by using simple linear regression method in accordance with the method used by Greenshields. The analysis showed that the variable max on the Raden Wijaya is as follows Dm = 0.992 pends / m2, Vm = 66.787 m / min, Qm = 66.253 pends / min / m while the variable max on the road Kesatriyan is as follows Dm = 3.041 pends / m2, Vm = 37.398 m / min, Qm = 113.727 pends / min / m. While the level of service including service level "A", the standard planning pedestrian facilities in urban areas in the level of service "A", this means that the pedestrian in the night market kodam v Surabaya still meet the standards of planning and is still able to accommodate the number of pedestrians there is. While the correlation value on the road Raden Wijaya was r = -0.922 and correlation on the road Kesatriyan is r = -0.488.

scholarly journals Using the SPAD 502 Meter to Assess Chlorophyll and Nitrogen Content of Benjamin Fig and Cottonwood Leaves

2002 ◽  
Vol 12 (4) ◽  
pp. 682-686 ◽  
Author(s):  
Felix C. W. Loh ◽  
Jason C. Grabosky ◽  
Nina L. Bassuk
Keyword(s):  
Populus Deltoides ◽  
Chlorophyll Concentration ◽  
Leaf Tissue ◽  
Baseline Data ◽  
Plant Management ◽  
Sample Collection ◽  
Media Study ◽  
Landscape Plant ◽  
Sampling Procedures ◽  
Foliage Quality

A Minolta SPAD-502 leaf chlorophyll meter was used for nondestructive data collection on the chlorophyll and nitrogen (N) status of benjamin fig (Ficus benjamina) and cottonwood (Populus deltoides) to quantitatively evaluate foliage quality. The goal was to provide a specific calibration for interpreting SPAD data within a media study for each species. Triplicate SPAD readings were collected from each of six leaves, sampled from forty plants per species, then processed for foliar analysis. Leaf tissue disks were also collected directly over SPAD testing sites for chlorophyll concentration measurement. Significant linear correlations were found between SPAD data and chlorophyll concentrations (r2 = 0.90 in benjamin fig and r2 = 0.91 for cottonwood). A significant, but lower correlation was found between SPAD data and N concentration. The SPAD-N correlations improved from the fifth month to the ninth month harvest (r2 = 0.32 to 0.53 for benjamin fig and 0.26 to 0.42 for cottonwood). The SPAD-502 could be useful for in landscape plant management, and in time for production situations, but baseline data is needed. Consistent protocol in sample collection and seasonal timing is needed prior to use as a predictor for tissue N levels. Development of species, and perhaps cultivar, specific baseline data and sampling procedures will need development, but could yield a rapid, quantitative, in expensive field diagnostic for foliage quality for making cultural management decisions.

scholarly journals Sistem Pendukung Keputusan Penentuan Lokasi Perbaikan Jalan Menggunakan Metode Simple Additive Weighting (SAW) (Studi Kasus : Dinas P.U Bina Marga Kabupaten Ogan Ilir)

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Resi Resi ◽  
Ali Ibrahim
Keyword(s):  
Decision Making ◽  
Government Regulation ◽  
Public Works ◽  
Optimal Decision ◽  
Decision Making Process ◽  
Weighting Method ◽  
The Road ◽  
Speed Up ◽  
On The Road ◽  
Simple Additive Weighting

Currently the system to determine the location of roadworks at the Department of Public Works Highways Ogan Ilir already running properly with the working guidelines of government regulation No. 34 of 2006 on the road needs to be improved in accordance with the streets according to their status as district roads. However, the process to determine which path should be repaired first they compare with the printed document, so that problems that occur are not effective in the process of decision-making and reporting. Therefore, this study about decision support systems determining the location of roadwork that aims to speed up the decision making process regarding the location of which road to be repaired first by a ratio of specified criteria. The method used mainly in the development of the system is a Simple Additive weighting method (SAW) that can help best decision against several alternative decisions to obtain an accurate and optimal decision. The system is developed using PHP programming language and MySQL database in order to produce a support system that can provide an alternative in the decision.

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