scholarly journals RISIKO KECELAKAAN SEPEDA MOTOR PADA SIMPANG PRIORITAS

2020 ◽  
Vol 19 (3) ◽  
pp. 161-170
Author(s):  
Benidiktus Susanto ◽  
Siti Malkhamah ◽  
Latif Budi Suparma
Keyword(s):  
Risk Analysis ◽  
Traffic Safety ◽  
Accident Risk ◽  
Potential Conflict ◽  
Practical Applications ◽  
Critical Gap ◽  
Stopping Distance ◽  
Planning And Design ◽  
Highway Planning ◽  
Safety Accident

Abstract Traffic safety is an important requirement in highway planning and design. Many studies related to accident risk analysis have been carried out, but practical applications are still not widely found, especially for accident risk analysis at priority junctions. This study aims to determine the speed and acceleration of motorcyclist behavior entering a junction. It was conducted by measuring the speed of a motorcycle when entering the junction at 150 m, 100 m, and 50 meters before the point of the potential conflict. If the critical gap is longer than the stopping distance (a combination of the reaction time and braking time), the motorcycle will be safe. The results showed that motorcyclist decelerates the speed when entering the junction. The change in speed starts at 50 to 100 meters before the conflict. Motorcyclists will be safe if the speed is less than 65.8 km/h at 50 meters before entering the junction. Keywords: traffic safety, accident risk analysis, priority junction, speed  Abstrak Keselamatan adalah faktor utama dalam perencanaan dan perancangan fasilitas jalan. Berbagai penelitian yang berhubungan dengan analisis risiko kecelakaan telah banyak dilakukan, namun aplikasi praktisnya masih belum banyak dijumpai terutama untuk analisis risiko kecelakaan pada simpang prioritas. Penelitian ini bertujuan untuk mengetahui perilaku kecepatan dan percepatan sepeda motor saat memasuki simpang, sehingga dapat dilakukan analisis terhadap potensi risiko sepeda motor saat memasuki simpang prioritas. Penelitian dilakukan dengan mengukur kecepatan sepeda motor saat memasuki simpang pada jarak 150 m, 100 m, dan 50 m sebelum titik konflik. Apabila celah kritis lebih panjang dari jarak henti (gabungan dari pengaruh waktu reaksi dan waktu pengereman), maka sepeda motor tersebut dapat dikategorikan selamat. Hasil penelitian menunjukkan bahwa saat memasuki simpang sebagian besar sepeda motor melakukan perlambatan. Perubahan kecepatan mulai terjadi pada jarak antara 50 sampai 100 meter sebelum titik konflik. Sepeda motor akan aman apabila pada kecepatan sebelum simpang tidak melebihi 65,8 km/jam. Kata-kata kunci: keselamatan lalu lintas, analisis risiko kecelakaan, simpang prioritas, kecepatan

scholarly journals The Effects of ITS Application in Speed Management on State Road From Mali Pozarevac to Kragujevac

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Tomislav Petrović ◽  
Miloš Milosavljević ◽  
Milan Božović ◽  
Danislav Drašković ◽  
Milija Radović
Keyword(s):  
Traffic Safety ◽  
Traffic Management ◽  
Quality Data ◽  
Transport Systems ◽  
Speed Limit ◽  
Accident Risk ◽  
The Road ◽  
Road Users ◽  
Speed Management ◽  
On The Road

The application of intelligent transport systems (hereinafter ITSs) on roads enables continuous monitoring of road users during a whole year with the aim to collect good-quality data based on which the more complex analyses could be done, such as monitoring of certain traffic safety indicators. Automatic traffic counters are one of the most commonly implemented ITSs for collecting traffic flow parameters that are relevant for traffic management on state roads in Republic of Serbia. This paper presents one of the possible ways to collect, analyze and present data on road users’ speeds using automatic traffic counters, where certain traffic safety indicators are analyzed in terms of road users’ compliance with the speed limit on the road section from Mali Pozarevac to Kragujevac. Based on the analyses of data downloaded from automatic traffic counters, it is observed that an extremely high percentage of vehicles drive at speed higher than the speed limit, indicating clearly to higher traffic accident risk, as well as to the need for a tendency to implement speed management on roads using ITS in the forthcoming period.

scholarly journals ANALISIS PENERAPAN KESELAMATAN KERJA DALAM UPAYA PENGENDALIAN KECELAKAAN KERJA DI PT. BUDI DWIYASA PERKASA

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Riana Septiani ◽  
Keyword(s):  
Hazard Analysis ◽  
Assessment Method ◽  
Hazard Identification ◽  
Risk Level ◽  
Accident Risk ◽  
Risk Assessment Method ◽  
Accident Data ◽  
Safety Accident ◽  
Plantation Company ◽  
Work Done

Abstract In conducting activities, many found workers who did not use personal protective equipment, do not pay attention to safety in work and work done like without procedure. PT. Budi Dwiyasa Perkasais a plantation company palm oil. Based on accident data obtained work, there are 14 case of accident in April until June 2016 in PT. Budi Dwiyasa Perkasa. A major factor cause of the accident is unsafe actions and unsafe conditions. Hazard analysis needs to be done in order to prevent the accident of work. Hazard identification done with using the risk assessment method. This analysis of the technique used to determine the level of the risk of a job is a combination of between the possibility of the harms caused by the severity of the caused. The result of hazard identification with this method is used in a kind of work to have a high risk level and need to address special in order to prevent the accident. Keywords: safety, accident, risk, hazard identification,

scholarly journals USING GENERALIZED STOCHASTIC METHOD TO EVALUATE PROBABILITY OF CONFLICT IN CONTROLLED AIR TRAFFIC

Aviation ◽  
2007 ◽  
Vol 11 (2) ◽  
pp. 31-36 ◽  
Author(s):  
Vitaly Babak ◽  
Volodymyr Kharchenko ◽  
Volodymyr Vasylyev
Keyword(s):  
Differential Equation ◽  
Partial Differential Equation ◽  
Traffic Safety ◽  
Evaluation Method ◽  
Air Traffic ◽  
Collision Probability ◽  
Parabolic Partial Differential Equation ◽  
Partial Differential ◽  
Potential Conflict ◽  
Infinitesimal Operator

The introduction of the new concepts of air traffic management (ATM) and transition from centralized to decentralized air traffic control (ATC) with the change of traditional ATM to Cooperative ATM sets new tasks and opens new capabilities for air traffic safety systems. This paper is devoted to the problem of evaluating the probability of aircraft collision under the condition of Cooperative ATM, when the necessary information is available to the subjects involved in the decision‐making process. The generalized stochastic conflict probability evaluation method is developed. This method is based on the generalized conflict probability equation for evaluation of potential conflict probability and aircraft collision probability that is derived by taking into account stochastic nature and time correlation of deviation from planned flight trajectory in controlled air traffic. This equation is described as a multi‐dimensional parabolic partial differential equation using a differential (infinitesimal) operator of the multi‐dimensional stochastic process of relative aircraft movement. The common procedure for the prediction of conflict probability is given, and the practical application of the generalized method presented is shown. All equational coefficients of a differential operator for a practical solution of a parabolic partial differential equation are derived. For some conditions, the numerical solution of the conflict probability equation is obtained and illustrated graphically.

scholarly journals Digital Terrain Data Specifications for Highway Planning and Design.

2001 ◽  
pp. 73-82 ◽  
Author(s):  
Motoya YAMASAKI ◽  
Teietu HONGO ◽  
Hiroyuki TAKAHASHI ◽  
Shinichi ADACHI ◽  
Masaharu OTOMO ◽  
...  
Keyword(s):  
Digital Terrain ◽  
Planning And Design ◽  
Highway Planning

Dam ageing diagnosis and risk analysis: Development of methods to support expert judgment

2006 ◽  
Vol 43 (2) ◽  
pp. 169-186 ◽  
Author(s):  
Laurent Peyras ◽  
Paul Royet ◽  
Daniel Boissier
Keyword(s):  
Risk Analysis ◽  
Functional Model ◽  
Physical Modelling ◽  
Graph Representation ◽  
Effect Analysis ◽  
Practical Applications ◽  
Knowledge Database ◽  
Performance Loss ◽  
Dam Stability ◽  
Fmea Method

Diagnosis and risk analysis are essential to ensure the safety of dams. Dam specialist engineers have useful methods available to help them in their task: physical modelling for assessing dam stability, statistical analysis of dam monitoring data, and, more recently, functional modelling for operational safety analysis. However, an expert's judgment is necessary when the works are complex and unique, when data are imprecise or insufficient, and when preliminary diagnosis or detailed analysis are being made. Using their experience and knowledge, dam specialist engineers are able to provide recommendations to address specific problems. The authors propose methods to support expert diagnosis and risk analysis that capitalize on the expert's knowledge and feedback. Their approach is threefold: (i) an ageing functional model based on the failure mode and effect analysis (FMEA) method using a causal graph representation of ageing scenarios leading to loss of functions; (ii) a qualitative method of describing dam ageing historical data and representing trends in performance loss; and (iii) qualitative methods to assess the risk of performance loss of dams and their components. In terms of practical applications, our research has produced a knowledge database on dam mechanisms. Also, an ageing historical database was compiled from dams that have experienced deterioration. Finally, we are developing computer aids to assist engineers in diagnosis and risk analysis tasks.Key words: dam, diagnosis, risk analysis, ageing, criticality.

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