scholarly journals Minimizing Shadow Area in Mountain Roads for Improving the Sustainability of Infrastructures

2021 ◽  
Vol 13 (10) ◽  
pp. 5392
Author(s):  
José Ángel Aranda ◽  
María Moncho Santonja ◽  
MÁ Gil Saurí ◽  
Guillermo Peris-Fajarnés
Keyword(s):  
Traffic Accidents ◽  
Three Dimensions ◽  
High Mountain ◽  
Design Elements ◽  
The Road ◽  
Road Design ◽  
Shadow Area ◽  
Road Section ◽  
Solar Lighting ◽  
Geometric Elements

The lack of sunlight on mountain roads in the wintertime leads to an increase in accidents. In this paper, a methodology is presented for the use of sunny and shady areas to be included as a parameter in road design. The inclusion of this parameter allows for the design of an iterative method for the projected infrastructures. The parameterization of the road layout facilitates the possibility of applying an iterative process of modifying the geometric elements that constitute it, examining different layout alternatives until a layout is achieved in which the surface area in the shady area is minimized, increasing the road safety and minimizing environmental impact. The methodology has been defined, generating and analyzing the results of the solar lighting study using a file in IFC format capable of integrating with the rest of the design elements (platform, signaling, structures, etc.) and thus obtaining a BIM format which allows the model to be viewed in three dimensions and moves towards 4D and 5D. The model used for the study was a high mountain road located in the province of Teruel (Spain). It is a road section characterized by successive curves in which several traffic accidents have occurred due to running off the road, partly because of the presence of ice on the platform.

scholarly journals Applying the Decision Support System, TRACER, to Forest Road Design

2005 ◽  
Vol 20 (3) ◽  
pp. 184-191 ◽  
Author(s):  
Abdullah E. Akay ◽  
John Sessions
Keyword(s):  
Three Dimensional ◽  
Design Procedure ◽  
Optimization Techniques ◽  
Forest Road ◽  
The Road ◽  
Road Design ◽  
Road Section ◽  
Environmental Requirements ◽  
Alignment Model ◽  
Modern Optimization

Abstract A three-dimensional forest road alignment model, TRACER, was developed to assist a forest road designer with rapid evaluation of alternative road paths. The objective is to design a route with the lowest total cost considering construction, maintenance, and transportation costs, while conforming to design specifications, environmental requirements, and driver safety. The model integrates two optimization techniques: a linear programming for earthwork allocation and a heuristic approach for vertical alignment selection. The model enhances user efficiency through automated horizontal and vertical curve fitting routines, cross-section generation, and cost routines for construction, maintenance, and vehicle use. The average sediment delivered to a stream from the road section is estimated using the method of a GIS-based road erosion/delivery model. It is anticipated that the development of a design procedure incorporating modern graphics capability, hardware, software languages, modern optimization techniques, and environmental considerations will improve the design process for forest roads. West. J. Appl. For. 20(3):184–191.

scholarly journals Empirical Speed Behavior on Horizontal Ramp Curves in Interchanges in the Netherlands

2017 ◽  
Vol 2618 (1) ◽  
pp. 38-47 ◽  
Author(s):  
Haneen Farah ◽  
Aries van Beinum ◽  
Winnie Daamen
Keyword(s):  
The Netherlands ◽  
Prediction Models ◽  
Operating Speed ◽  
Trajectory Data ◽  
Design Elements ◽  
The Road ◽  
Road Design ◽  
Speed Prediction ◽  
Design Consistency ◽  
High Level

Several studies in the literature have indicated that interchanges are the most crash-prone areas within the motorway system in number and severity of accidents. The reason is the high level of turbulence as a result of vehicle lane changes and speed variability. To understand the safety consequences of an interchange design (e.g., type of connecting ramps, radii and superelevation of curves, and lane and shoulder widths), an in-depth investigation of driving speed behavior is needed. Such an investigation requires the collection of detailed trajectory data on vehicles on different interchanges. These types of data are rarely available, and as a result, such studies are scarce in the literature. The main objective of this present study was to analyze driver speed behavior on different ramps at interchanges, and to develop an operating speed prediction model as a function of the road design elements. Trajectory data on free-moving vehicles were derived from stabilized video images taken from a camera mounted underneath a helicopter, which hovered over the road areas studied. Data were collected from 29 curves at six freeway–freeway interchanges in the Netherlands. The sample included nine direct connections, 12 semidirect connections, and eight indirect connections. The findings showed that speeds were affected by several road geometric characteristics of the curves, by driver expectancy and design consistency, and by the percentage of trucks in traffic. The operating speed prediction models developed in the study will provide designers with tools to estimate the operating speed during the design process.

Analysis of Characteristics of Vehicle-Bicycle/Pedestrian Conflicts Using Video Drive Recorder

2011 ◽  
Vol 243-249 ◽  
pp. 4413-4417 ◽  
Author(s):  
Qing Feng Lin ◽  
Bo Cheng ◽  
Guang Quan Lu
Keyword(s):  
Field Test ◽  
Traffic Control ◽  
Road Safety ◽  
Traffic Accidents ◽  
Safety Management ◽  
The Road ◽  
Road Design ◽  
Traffic Conflict ◽  
Accident Data ◽  
One Year

Vehicle to pedestrian/bicycle accidents account for a large proportion of traffic accidents in China. In order to study the characteristics of vehicle to pedestrian/bicycle conflicts, 50 taxis are chosen as the test vehicles. A field-test was conducted using video driver recorder in Beijing for one year. A large amount of traffic conflict and accident data was collected in real driving environment. Considering the factors including conflict type, conflict time, conflict location, traffic control and conflict speed etc., the traffic conflict characteristics of vehicle to pedestrian/bicycle were analyzed. The results might contribute to the road safety management, road design and accident prevention technology.

scholarly journals Analisisa Persepsi Pengguna Jalan terhadap Dampak Positif dan Negatif Tidak Adanya Median Jalan

2020 ◽  
pp. 53-60
Author(s):  
Meri Sufina ◽  
Nadra Arsyad ◽  
Muhammad Hafidz
Keyword(s):  
Traffic Accident ◽  
Traffic Accidents ◽  
Field Survey ◽  
Air Transportation ◽  
The Road ◽  
Road Users ◽  
Road Section ◽  
A Value ◽  
Daily Mobility ◽  
Negative Impacts

Roads are the most common land transportation infrastructure used by the community to carry out daily mobility compared to water and air transportation, so that the volume of vehicles passing through these roads must be able to be supported by pavement on the roads they pass. Median is a path that is located in the middle of the road to divide the road in each direction. The median and its limits must be visible to every driver's eyes both during the day and night and all weather and conditions so that no accident occurs. The purpose of this study was to determine how perceptions of road users on the positive and negative impacts of the absence of a road median on the Sudirman road section. The results of this research can be done by conducting a field survey of road users. After that, the questionnaire was distributed with the number of respondents from the average results for a week of 50 respondents. So that it is obtained from the SPSS statistics. From the research results the validity test of the median variable of road and traffic accidents is declared "Valid". While the results of the reliability test produce a value for the median level of the road 0.883 or categorized as "Good" and the level of traffic accident 0.769 or categorized as "Acceptable"

scholarly journals PENINGKATAN KESELAMATAN DI RUAS JALAN PANTURA KM 46–47 KECAMATAN PATROL KABUPATEN INDRAMAYU

2021 ◽  
Vol 21 (2) ◽  
pp. 101-108
Author(s):  
Arivia Shehera Kurniastuti ◽  
Novita Sari ◽  
Sulistyo Sutanto
Keyword(s):  
Traffic Safety ◽  
Traffic Accidents ◽  
North Coast ◽  
Traffic Signs ◽  
The Road ◽  
The North ◽  
Road Section ◽  
Sight Distance ◽  
Speed Management ◽  
Stopping Sight Distance

Abstract   The number of traffic accidents that occur in Indramayu Regency continues to increase and causes many casualties and material losses. From the available data, it is known that there is one road section which is an accident-prone area, namely the North Coast Java Road section, KM 46-47, which is located in Patrol District, Indramayu Regency. The flow and speed of traffic on this road is quite high, because of its function as a primary arterial road. This study aims to improve safety on the North Coast Java Road section, KM 46-47. The method used is in the form of observation and field data collection. Furthermore, the data obtained is processed, analyzed, and followed by formulating appropriate recommendations. This study shows that the main cause of accidents is the human factor, especially those related to high traffic speeds. To improve the existing conditions, it is proposed to provide road equipment, especially traffic signs, which are adjusted to the stopping sight distance required by motorized vehicles using the road. In addition, it is necessary to apply speed management as part of efforts to improve traffic safety.   Keywords: traffic accident; stopping sight distance; road equipment, traffic speed; traffic signs.     Abstrak   Angka kecelakaan lalu lintas yang terjadi di Kabupaten Indramayu terus meningkat dan menyebabkan banyak korban jiwa dan kerugian material. Dari data yang ada diketahui bahwa terdapat satu ruas jalan yang termasuk daerah rawan kecelakaan, yaitu ruas Jalan Pantai Utara Jawa, KM 46-47, yang terletak di Kecamatan Patrol, Kabupaten Indramayu. Arus dan kecepatan lalu lintas di ruas jalan tersebut cukup tinggi, karena fungsinya sebagai jalan arteri primer. Studi ini bertujuan untuk meningkatkan keselamatan di ruas Jalan Pantai Utara Jawa KM 46-47. Metode yang digunakan berupa observasi dan pengumpulan data lapangan. Selanjutnya data yang diperoleh diolah, dianalisis, kemudian dirumuskan rekomendasi yang tepat. Studi ini menunjukkan bahwa faktor penyebab kecelakaan yang utama adalah faktor manusia, khususnya yang berhubungan dengan kecepatan lalu lintas yang tinggi. Untuk memperbaiki kondisi yang ada, diusulkan pemberian perlengkapan jalan, khususnya rambu lalu lintas, yang disesuaikan dengan jarak pandang henti yang diperlukan oleh kendaraan bermotor yang melintasi jalan tersebut. Selain itu perlu diterapkan manajemen kecepatan sebagai bagian upaya meningkatkan keselamatan lalu lintas.   Kata-kata kunci: kecelakaan lalu lintas; jarak pandang henti; perlengkapan jalan, kecepatan lalu lintas; rambu lalu lintas.

scholarly journals Sustainable road-kill mitigation in Gladak Perak Bridge at Lumajang, Indonesia

2021 ◽  
Vol 907 (1) ◽  
pp. 012028
Author(s):  
P S Wulandari ◽  
H R Lestyana ◽  
Johnson ◽  
J F Tranggono
Keyword(s):  
Traffic Accidents ◽  
Design Standards ◽  
Road Kill ◽  
The Road ◽  
Road Design ◽  
Road Users ◽  
Research Site ◽  
Prone Area ◽  
Animal Migration ◽  
Tourism Potential

Abstract Traffic accidents involving animals occur every year. Roadkill is a serious problem faced by the whole world, including Indonesia. Therefore, it is necessary to modify road accessories to prevent accidents, both from animals and road users. Prevention can be done in several ways, such as by installing fences or creating crossing paths, for animals. The fence can be used as a barrier between the driving lane and the animal path, where they can carry out activities such as playing without disturbing road users. Meanwhile, the making of crossing paths can be used by animals as access for animal migration. This study would like to propose a design for implementing cross-fencing mitigation at Gladak Perak Bridge at Lumajang, Indonesia. This location is an accident-prone area due to the sudden crossing of monkeys, which has been a myth in the community. Through the implementation of the installation of road dividers, it is hoped that the road design at the research site becomes wildlife friendly road and the management of traffic also meet the Indonesian design standards for inter-city roads without reducing tourism potential.

scholarly journals EVALUASI RUAS JALAN GATOT SUBROTO MENGGUNAKAN METODE IRAP UNTUK MENCAPAI STAR RATING 4 DAN 5

2021 ◽  
Vol 4 (3) ◽  
pp. 777
Author(s):  
Yohanes Ryandi ◽  
Ni Luh Putu Shinta Eka Setyarini
Keyword(s):  
Public Transportation ◽  
Traffic Accidents ◽  
Rapid Development ◽  
Rating Score ◽  
Star Rating ◽  
The Road ◽  
Passenger Vehicles ◽  
Road Section ◽  
Transportation Sector ◽  
The City

The rapid development of the transportation sector will indirectly increase the risk of the growth of traffic problems, one of which is traffic accidents. The number of traffic accidents in Indonesia, especially in the city of Jakarta is very high and continues to increase every year because there are still many roads that have not applied the principles of safe roads in their design and there are still many people who still choose to use private vehicles compared to public transportation. So to reduce the risk of accidents, it is necessary to carry out a strategy to improve road safety using existing methods, namely the iRAP (International Road Assessment Program) method on the Jendral Gatot Subroto road section and the results of the study obtained the existing condition of the road section, for passenger vehicles already reached 4,4, motorcycle cyclists 3,9, pedestrians 5, but for cyclists mode only 3, therefore it is necessary to do a countermeasurement to increase the Star Rating Score to 4 and 5, so that the desired star rating score is obtained on the Jalan Jendral Gatot Subroto.ABSTRAKPerkembangan bidang transportasi yang cepat secara tidak langsung akan memperbesar resiko tumbuhnya permasalahan lalu lintas salah satunya adalah kecelakaan lalu lintas. Jumlah kecelakan lalu lintas di Indonesia khususnya di kota Jakarta sangatlah tinggi dan terus meningkat setiap tahunnya karena masih banyaknya ruas jalan yang belum menerapkan prinsip jalan berkeselamatan pada perancangannya dan masih banyak masyarakat yang masih memilih menggunakan kendaraan pribadi dibandingkan kendaraan umum. Maka untuk mengurangi risiko terjadinya kecelakaan, perlu dilakukan strategi peningkatan keselamatan jalan menggunakan metode yang ada, yaitu metode iRAP (International Road Assessment Programme) pada ruas jalan Jendral Gatot Subroto dan hasil dari penelitian tersebut didapatkan kondisi eksisting ruas jalan tersebut, untuk moda kendaraan berpenumpang sudah mencapai 4,4, pesepeda motor 3,9, pejalan kaki 5, tetapi untuk moda pesepeda hanya 3, maka dari itu perlu dilakukan countermeasure guna menaikan Star Rating Score menjadi 4 dan 5, sehingga didapatkan star rating score yang diinginkan pada ruas jalan Jendral Gatot Subroto.

scholarly journals ANALYSIS AND JUSTIFICATION OF NORMATIVE SUPPORT OF EARTH DESIGN DESIGN IN COMPLEX ENGINEERING AND GEOLOGICAL CONDITIONS

2021 ◽  
Vol 6 (166) ◽  
pp. 81-87
Author(s):  
A. Batrakova ◽  
Y. Dorozhko ◽  
E. Zakharova
Keyword(s):  
Traffic Accidents ◽  
Road Construction ◽  
Road Surface ◽  
National Standard ◽  
Normative Documents ◽  
The Road ◽  
Traffic Conditions ◽  
Road Design ◽  
Geological Conditions ◽  
Complex Engineering

Designing of a ground cloth is the most responsible stage as destruction or inadmissible deformations of a ground cloth connected with design errors lead to decrease in reliability of all constructive elements of highways, increase in expenses for maintenance of a standard technical and operational condition of road clothes, culverts, elements. arrangement, etc. Insufficient strength of the ground structure is one of the causes of deformations and destruction of the structure of the pavement, which leads to deteriorating traffic conditions, increased damage from traffic accidents, increased cost of transportation and more. At the same time, the normative documents on road design do not contain any regulations on the procedure and methods of calculating the road surface in difficult conditions (on weak, subsidence soils, in rocky soils). Therefore, in order to further develop the list of mandatory calculations during the design of the ground, it is necessary to analyze and generalize the regulatory framework for the construction of the ground of public roads, to determine the requirements for the design of the ground in complex engineering and geological conditions. The purpose of this study is to generalize the regulatory requirements for the design of the ground of public roads in complex engineering and geological conditions. According to the results of the analysis, it is established that in the normative documents on the design of the road surface in difficult engineering and geological conditions there is no regulation on the procedure and methods of calculating the road surface in difficult conditions (on weak, subsidence soils, in rocky soils). Therefore, there is a need to develop a national standard for the design of the road surface. In the future it is necessary to summarize the existing methods of calculating the road surface, to develop a list of mandatory calculations during the design of the road, to establish requirements for the principles and procedures of road construction, to determine the boundary conditions of the road and their criteria.

Snow Melting from Solar Radiation to Mitigate the Road Freezing

2014 ◽  
Vol 543-547 ◽  
pp. 4073-4076 ◽  
Author(s):  
Won Suk Jang ◽  
Hong Wei Sun ◽  
Sun Chan Bae ◽  
Hee Joong Kim ◽  
Young Ho Ahn ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Traffic Accidents ◽  
Winter Season ◽  
Snow Melting ◽  
Weather Patterns ◽  
The Road ◽  
Environmental Disasters ◽  
Road Pavement ◽  
Road Design ◽  
Weather Changes

Road safety from various environmental disasters has gained much attention during construction project. Global warming has changed the weather patterns, such as regional torrential rains, heavy snow, and severe cold, and these irregular weather changes have brought huge amount of physical and human damages. In winter season, road freezing caused by snow or icing condition has increased the traffic accidents: traffic mortality is larger in winter than other seasons. In this paper, snow melting mechanism on road pavement by solar radiation and the effect of shadow and temperature is analyzed. Also, numerical analysis on snow melting is performed to provide the guideline of road design considering the solar radiation in an effort of mitigating the road freezing and reducing the traffic accidents in winter.

scholarly journals The Effect of Geometric Road Conditions on Safety Performance of Abu Dhabi Road Intersections

Safety ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 73
Author(s):  
Abdulla Alghafli ◽  
Effendi Mohamad ◽  
Al Zaidy Ahmed
Keyword(s):  
Traffic Accidents ◽  
Negative Binomial ◽  
Red Light ◽  
Safety Performance ◽  
Negative Binomial Regression Model ◽  
Traffic Light ◽  
Property Damage ◽  
The Road ◽  
Road Design ◽  
Severe Accidents

Abu Dhabi’s government has taken several initiatives to improve the safety of the city’s highways, such as reducing traffic accident occurrence, red light violations, and property damage associated with traffic accidents. However, the intersections are still associated with many severe accidents, property damage associated with accidents, and red light violations. To help authorities pinpoint the major contributors to the deterioration of the safety performance of the signalized junctions, this study employed a negative binomial regression model to investigate the effect of geometric road conditions (in terms of the number of lanes of streets found in four-leg, three-leg, and different types of intersection) on property damage, red light violations, and severe accidents as safety performance indicators. The research found that, in both three-leg and four-leg intersections, most accidents and traffic light violations occur when minor streets pass through the intersection. This can be solved by converting these minor streets into major streets by increasing the number of lanes. This way, the capability of the minor street’s handling of increased traffic from the major streets significantly increases. The results also show that traffic speed is a major contributor to safety performance deterioration in these intersections. This can be solved by posting speed limits at these intersections. Results have also shown that, in Direction 1, when the main street passes through the intersection, the property damage type of accident is significantly high. This may be due to the presence of a potentially hazardous property or road design flaws on that side of the road. This effect needs further investigation to determine the hazardous property or the road design flaws causing these accidents.

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