Two-wheeled Vehicles Research Articles

ATURAN ASOSIASI UNTUK REKOMENDASI STRATEGI PEMASARAN PRODUK KERAJINAN MENGGUNAKAN FREQUENT PATTERN GROWTH

Besides selling equipments and spareparts for two-wheeled vehicles, NTN Racing Store also sells handicraft products made from water hyacinth. Lately, NTN Racing Store facing challenges in selling its products, as evidence by the unpredictable monthly revenue. The reason is insufficiency of customer purchasing patterns understanding. The impacts are the declining of the marketing and sales performance for creative water hyacinth handicrafts products since 2020. The main purpose of this studi is to identify which products are purchase together by customers in one transaction when shopping for water hyacinth products. Market Basket Analysis is a rule that determines associations between various attributes and is a key application in the retail industry. This method is use to analyze past consumer purchasing behavior to determine items that are frequently purchase together. Its purpose is to uncover relationships between products purchased by customers in a single transaction. On the other hand, Frequent Pattern Growth is an alternative algorithm use to identify the most frequently occurring datasets within a collection of data. The testing results of 435 transactional data points from NTN Racing Store, using 1% minimum support value and 25% minimum confidence value, resulting four association rules within lift ratios above 1 which indicates significant relationships among itemsets. From these evaluation results, customer purchasing patterns can be identifying trough the association analysis rules. This information can assist the store owner in determining bundling packages to sell and to devise store sales strategies.

Numerical Investigation of Heat Production in the Two-Wheeler Electric Vehicle Battery via Torque Load Variation Test

Experimental studies were conducted to investigate the effect of varying torque loads on the temperature distribution on the surface of lithium-ion batteries (72 volts–20 Ah) in real commercial two-wheeler electric vehicles as part of our previous research. An electric vehicle engine was installed in a dyno testing laboratory and used as the main load for the battery. Ambient temperature and relative humidity were controlled using an air conditioning system. The test results are presented as surface temperature distributions on each side of the battery at various torque loads. The highest temperature on the battery’s surface was found to be approximately 40 °C at a torque load of 100%. Unfortunately, the heat generated by the battery during testing could not be measured for further research. This paper presents a numerical study of battery heat generation at 100% torque load using Ansys Fluent 2020 R1©. This tool is employed to calculate the heat flux from the battery surface to the ambient air. The CFD tool was initially validated against available experimental data and commonly used correlations for natural convection along a vertically heated wall. Good agreements between the current predictions and experimental data were observed for laminar flow regimes. Convective heat transfer between the battery surface and ambient air was simulated. The results indicate that the commonly used heat transfer correlation for vertical plates accurately predicts the heat transfer rate on the battery surface, and it was found that the heat generation rate is 1199 W/m3.

Prevalence of fatigue while driving among two-wheeled vehicle drivers and associated factors: Exploratory approach from secondary analysis based on hospital data, Benin.

Fatigue while driving is one of the risk factors of road crashes. It's still poorly considered in interventions because of insufficient literature. In addition, the literature on this issue doesn't focus on two-wheelers, the most frequent users in the Benin context. The study examined the prevalence of fatigue while driving among two-wheeled vehicle drivers and the related factors. It's a secondary baseline data analysis from a cohort of road crash victims recruited from five hospitals in Benin. Data were collected from July 2019 to January 2020. Patients who identified themselves as drivers during the accident were included. Data on individual characteristics, including fatigue status in the moments preceding the collision, and other risk factors and environmental settings, were extracted. We used multivariate logistic regression. Among the respondents, 12.20% (95% CI=10.20-14.53) reported fatigue in the moments preceding the collision. The odds of fatigue while driving were significantly higher in male drivers (aOR=3.60; 95% CI=1.08-11.98), during professional trips (aOR=2.09; 95% CI=1.30-3.37), in non-helmet wearers (aOR=1.85; 95% CI=1.09-3.13), in users of stimulants (aOR=3.13; 95% CI=1.50-6.54), in those with a history of chronic diseases (aOR=1.95; 95% CI=1.16-3.27), at dusk (aOR=4.22; 95% CI=2.22-8.02), at night (aOR=6.90; 95% CI=3.95-12.05), and on Inter-State National Roads (aOR=2.01; 95% CI=1.18-3.43). Fatigue is a risk factor for road crashes in Benin, associated with other risk factors that highlight particularly vulnerable profiles and groups. Integrating prevention policies based on these cumulative risk factors will result in efficiency improvements.

СТРУКТУРНО-ФУНКЦИОНАЛЬНОЕ ОПИСАНИЕ ЦИФРОВОГО ДВОЙНИКА ДМТС НА ПРИМЕРЕ МОТОЦИКЛА

In the article the general compositional decision on formation of digital twin of two-wheeled mechanical vehicle on the example of motorcycle realized on the basis of universal polymodel complex is stated, the structural-functional description of digital twin of two-wheeled mechanical vehicle is given and prospects of its further application are given.

How will banning motorcycles affect the preferred mode choice of motorcyclists in Hanoi, Vietnam?

In rapidly urbanizing regions of low- and middle-income countries as found in Asia, transportation management faces significant challenges, particularly with the popularity of two-wheeled vehicles. While these vehicles offer convenience in Asian megacities, their increasing prevalence has led to many urban traffic issues, including air pollution and traffic management problems. Consequently, several countries have contemplated or implemented bans on motorized two-wheeled vehicles in urban areas. With a forthcoming ban on motorcycles in 2030, this study investigates potential switches in transportation travel modes among motorcyclists. Analyzing factors influencing choices between electric bicycles (e-bikes) and buses, the results indicate a probable widespread adoption of e-bikes over buses post-ban. Income, place of residence, and access to bus stops emerge as key determinants.

The Role of Environmental Concern on Purchase Intentions Through Attitude, Perceived Ease of Use, and Willingness to Pay of Two-Wheeled Electric Vehicles in Indonesia

The Role of Environmental Concern on Purchase Intentions Through Attitude, Perceived Ease of Use, and Willingness to Pay of Two-Wheeled Electric Vehicles in Indonesia

Observer-Based Pole-Zero Cancellation Trajectory-Tracking Control for Two-Wheeled Vehicles With Performance Recovery Property

Observer-Based Pole-Zero Cancellation Trajectory-Tracking Control for Two-Wheeled Vehicles With Performance Recovery Property

Modeling and Parameters Estimation of a Self-Balancing Two-Wheeled Vehicle

Modeling and Parameters Estimation of a Self-Balancing Two-Wheeled Vehicle

Business Model Innovation of Off Grid Public Electric Vehicles Battery Swap Station with Solar Powered

Energy transition is Indonesia's national agenda to maintain energy security and realize the use of green energy. The use of electric vehicles (EVs) is one strategy to maintain primary energy security and support the reduction of carbon emissions. To support the growth of the EV ecosystem, Public Electric Vehicle Battery Swap Stations (Stasiun Penukaran Baterai Kendaraan Listrik Umum, SPBKLU) have been developed and installed in several locations. Currently, SPBKLU still uses electricity sources from the PLN (Perusahaan Listrik Negara, Indonesia’s electricity state-owned company) grid, where the majority of the PLN grid itself still relies on gas and coal power plants. Hence, this work proposed a PV-powered battery swap station and presented the Business Model Canvas and financial and SWOT analysis. Two business model schemes are proposed, the BPCOSP (Battery Provider, Cabinet Owner, Solar PV Provider) and BPCOSL (Battery Provider, Cabinet Owner, Solar PV Lease) schemes. From these two business schemes, the results of the financial feasibility analysis for the SPBKLU swap rate were obtained at IDR 18,241 for the BPCOSP scheme and IDR 21,500 for the BPCOSL scheme. From a SWOT analysis perspective, the BPCOSP and BPCOSL business schemes have the opportunity to increase the Solar PV business value chain and support government programs in achieving Net Zero Emissions. However, there are still weaknesses in terms of tariffs which are still not economical compared to the fuel costs of conventional two-wheeled vehicles and the current SPBKLU swap tariff which still uses electricity from the PLN grid.

Non-Linear Trend Analysis to Forecast The Number of New Two-Wheeled and Four-Wheeled Vehicles in Manokwari Regency

Forecasting is a systematic effort that employs scientific methods (knowledge and technology) to predict future events. Trends depict patterns of time series data over long or significant time intervals, indicating a tendency to either rise or fall. Trend lines are not always linear; they can have a curved (non-linear) shape. Non-linear trends refer to trend models that involve quadratic, cubic, and so on equations. Based on the non-linear trend-shaped data plot and research objectives, non-linear trend analysis is used to forecast the number of motor vehicles in Manokwari Regency. The best model for forecasting the number of new two-wheeled vehicles is the cubic trend model, which is: with a MAPE of 7.8%, categorized as excellent. The best model for forecasting the number of new four-wheeled vehicles is also the cubic trend model, which is: with a MAPE of 5.7%, categorized as excellent.

Helmet Usage for Single-Track Vehicle Users in the Poznan Agglomeration: A Preliminary Study

Accidents are inherent elements of human activity, and engineers have strived to develop safety systems to safeguard people against accidents, which are often random and unpredictable. Helmets have become the most popular means of protection over the years. They have undergone significant modifications, evolving into effective and advanced tools for head protection. Unfortunately, because helmets remain optional for bicycle users, some individuals choose to ignore safety guidelines. Methods: This research employed a survey method conducted among the residents of the Poznan agglomeration to determine the reasons behind the low adoption of helmets. A questionnaire consisting of 15 questions was distributed to 173 users of two-wheeled vehicles, including motorbikes, bicycles, mopeds, and electric scooters. Results: The findings revealed that only 41.4% of men declared using helmets, with 24.4% of women doing so. Additionally, 44.4% of the helmets in use were new, while the remaining 55.6% were purchased second-hand. Conclusion: The research indicates that individuals are more likely to wear protective helmets on older two-wheelers, and helmet usage is higher in larger cities. Therefore, it is essential to focus bicycle helmet educational campaigns on children and teenagers to improve safety awareness and encourage helmet usage.

Analysis of Parkir Area Requirements at Universitas Internasional Batam

The significant increase in the number of students at Batam International University. Along with the increase in good accreditation in all faculties, Batam Internasional University has become one of the campuses that is of interest to the community, especially the people of Batam city. This causes density to continue to increase, especially in campus parking areas. The method used is observation of research objects and secondary data collection from the campus. There are parking characteristics consisting of the number of vehicles on two-wheeled vehicles totaling 896 motorbikes, average duration = 0.25 hours, parking index = 62%, parking space requirement = 56 SRP, estimated land area = ±1440 . With that, the land area required is 1344 and has reached the excisting area. In the charasteristics of class I car vehicles, it was found the number of incoming vehicles was 702, average duration = 0.18 hours, parking index = 18.84%, parking space requirement = 31 SRP, estimated land area = ±3726 . With that, the land area required is 8073 and does not yet meet the available area.

Study on the Analysis of Collision and Structural Analysis for Transition from Internal Combustion Engine Two-Wheeled Vehicle to Electric Two-Wheeled Vehicle

Study on the Analysis of Collision and Structural Analysis for Transition from Internal Combustion Engine Two-Wheeled Vehicle to Electric Two-Wheeled Vehicle

Developing a multifunctional wearable system consisting of a helmet and clothing for two-wheeled vehicle users' safety assistance

Purpose This study aims to develop a safe, wearable clothing system that combines visibility-enhancing and emergency–accident-responding functions for two-wheeled vehicle (TWV) users' safety assistance.Design/methodology/approach First, the wearable system (WS) allowing users to control turn signals, brake lights and emergency flasher only with head movements was developed. Second, multiconnected systems were developed between WSs and a smartphone application (AS), providing accident occurrence recognition, driving photo capture–storage and emergency notification functions. Third, usability testing in each function was performed to assess the operability of the systems.Findings The intuitive interface, which uses head movement as gesture commands, was effectively operated for controlling turn signals, brake lights and emergency flasher when driving, despite differences in user physique and boarding structure among TWVs. In addition, using Bluetooth low energy and Wi-Fi protocols simultaneously can establish automatic accident recognition–notification and driving photo capture–storage–display functions by linking two WSs with one AS.Research limitations/implications This study presents a case using relatively accessible technologies within the fashion industry to improve users' safety and provide fundamental data for convergence education for smart fashion products, highlighting the significance of this study in this convergence era.Originality/value The WSs and the AS of a TWV user visually evoke the attention of other drivers and pedestrians, reducing the risk of accidents; social contribution regarding public safety will be possible by allowing the system to autonomously inform emergencies and receive emergency medical treatment quickly when the accident occurred.

The angle stabilization system of the self-balancing robot

The article is devoted to the consideration of the tilt angle stabilization system of a self-balancing robot. The object of research is self-balancing robots, and the subject is systems for stabilizing their tilt angle. A comprehensive analysis of the principles and algorithms used to ensure the stability of the robot when the tilt angle is changed is presented. The technical solutions underlying the stabilization system were studied and their effectiveness in relation to maintaining the robot in a vertical position was analyzed. A mathematical model is presented in which the self-balancing robot is represented as an inverted pendulum, i.e. a two-wheeled vehicle balances itself in a vertical position relative to the ground. It is assumed that the structure moves without friction. The main equations describing the movement of the balancing robot, taking into account the dynamics of the pendulum and the wheel, were obtained. As a regulator, the LQR regulator is proposed, which provides optimal control of a closed-loop system. The workability of the model and the proposed stabilization system was verified using simulation modeling. As a result of simulated modeling, oscillograms were obtained, which demonstrate that after an exciting effect, the system stabilizes and enters an equilibrium state. A controllability test was performed, which showed that the proposed controller can effectively control the system. Controllability ensures that a system can be subjected to a control signal in order to achieve the desired behavior. An example of the practical implementation of the robot and selected main components are presented

College students’ potential purchase intention of electric two-wheeled vehicles

Due to the rise of renewable energy/green energy issues in recent years, many countries have agreed to adopt the forms of environmental protection, cleanliness, and no impact on the environment for the sources and composition of energy. They have also drawn up relevant international agreements (i.e., Kyoto Protocol, Paris Agreement) to strictly limit and manage CO2 emissions. The newly advocated electric vehicles have gradually been regarded as a method to improve the environment by all countries. Through the introduction of new electric transport modes, the innovation and reform of the energy structure are promoted, and traditional transportation has also changed. In recent years, Taiwan has promoted the policy of replacing traditional fuel two-wheeled vehicles with electric two-wheeled vehicles (ETWVs), and gradually increased the number of ETWVs in Taiwan by replacing old fuel vehicles and subsidizing the purchase of ETWVs. This study is aimed at college students to explore the important factors that affect their willingness to buy ETWVs. As college students are the first group to buy ETWVs, if their willingness to buy ETWVs can be increased, environmental sustainability may be enhanced. Through a questionnaire designed to investigate the two-wheeled vehicle use preferences of college students in Taiwan, this paper explores the significant factors affecting college students’ purchase of ETWVs. This study applies Logistic Regression and Ordered Logit models, and the results of model estimation show that household income, gender, environmental awareness, recognition of ETWVs, the fuel costs of existing vehicles, number of people in each household, operational efficiency of ETWVs, and subsidy and incentive measures will all positively affect the purchase intention of college students.

Profiles of pregnant women encountering motor vehicle crashes in Taiwan, 2008–2017

BackgroundUnderstanding demographic profiles is essential to the assessment of health burden imposed by motor vehicle crashes (MVCs) on pregnant women. However, Asian studies that have examined it are lacking. The study aimed to describe the demographic characteristics and prevalence of MVCs involving pregnant women in Taiwan.MethodsA cross-sectional study conducted by the Taiwan Birth Notification dataset from 2008 to 2017 was linked with the police-reported traffic collision registry to identify pregnant women involved in MVCs. The pregnant women were categorized according to their gestational age, age at delivery, the role of road user (driver, passenger, or pedestrian), and vehicle types (car, two-wheeled motor vehicle, or others). A chi-square test was performed for the significance test.ResultsA total of 22,134 (1.13%) pregnant women were involved in MVCs in the study period. Two-wheeled motor vehicle (47.9%) and driver (81.4%) were the mainly reported vehicle type and road user at the crash scenes, respectively. The majority of MVCs occurred in pregnant women aged 28–34 years. The number of MVCs rapidly declined after 37 weeks of gestation, especially two-wheeled motor vehicle or car crashes. However, the number of pedestrian victims climbed up during the third trimester.ConclusionPregnant women are susceptible to MVCs regardless of their gestational age, role of a road user, or type of vehicle. The findings of this study emphasize the need for increased awareness of traffic collision prevention among pregnant women aged 28–34. In addition, improving pedestrian safety is essential for the reduction of pregnant victims.

Fatigue analysis and design of a motorcycle online driver measurement tool using real-time sensors

Work fatigue is an important aspect and is very influential in determining the level of accidents, especially motorbike accidents. According to WHO, almost 30% of all deaths due to road accidents involve two- and three-wheel­ed motorized vehicles, such as motorbikes, mopeds, scooters and electric bicycles (e-bikes), and the number continues to increase. Motor­cycles dominate road deaths in many low- and middle-income countries, where nine out of ten traffic accident deaths occur among motorcyclists, as in Indonesia. However, until now, in Indonesia, there has been no monitor­ing system capable of identifying fatigue in motorbike drivers in the transportation sector. This research aims to determine fatigue patterns based on driver working hours and create a sensor system to monitor fatigue measurements in real-time to reduce the number of accidents. The research began with processing questionnaire data with Pearson correlation, which showed a close relationship between driver fatigue and driving time and a close relationship between fatigue and increased heart rate and sweating levels. From calibration tests with an error of 3% and direct measurements of working conditions, it was found that two-wheeled vehicle driver fatigue occurs after 2-3 hours of work. With a measurement system using the Box Whiskers analysis method, respondents' working conditions can also be de­ter­mined, which are divided into 4 zones, namely zone 1 (initial condition or good condition), zone 2 a declining condition, zone 3 a tired condition and zone 4 is a resting condition. Hopefully, this research will identify fati­gue zones correctly and reduce the number of accidents because it can iden­tify tired drivers so they do not have to force themselves to continue working and driving their motorbikes. As a conclusion from this research, a measure­ment system using two sensors, such as ECG and GSR can identify work fatigue zones well and is expected to reduce the number of accidents due to work fatigue.

Application of Behaviorally Anchor Rating Scale (BARS) Method to Assess Employee Performance at Diskoperindag Aceh Jaya

The application of performance has an important role and function for a company, of course, it will be related to the decisions that the office will take as an office strategy in the future. This also applies to the office of the Aceh Jaya Diskoperindag which is an aluminum injection company for spare parts for two-wheeled and four-wheeled vehicles. The current assessment that runs at the Aceh Jaya Diskoperindag office is an assessment based on criteria but currently the assessment of these criteria does not have standard standards so that employee assessments run subjectively, this causes problems for employees so that the current assessment is considered less effective and not in line with official goals. As a result, employees feel uncomfortable and unmotivated at work. To overcome these problems, a performance assessment is compiled based on the Behaviorally Anchor Rating Scale (BARS) method, this BARS method is expected to overcome problems in employee performance appraisal which was originally subjective to be more objective where in the end employees of the Aceh Jaya Diskoperindag office can work comfortably and have high motivation at work.

TINJAUAN TERHADAP PELANGGARAN LALU LINTAS KENDARAAN RODA DUA OLEH ANAK DI BAWAH UMUR DI WILAYAH HUKUM POLRESTA BUKITTINGGI

Two-wheeled vehicle traffic violations committed by minors in the jurisdiction of the City of Bukittinggi still occur a lot and have even increased from year to year. This study aims to find out how law enforcement is against violations of two-wheeled vehicle traffic by minors and the constraints and efforts made to enforce the law on traffic violations of minors. This study uses empirical legal research methods. The results of this study, namely: 1) Law enforcement of traffic violations by minors in the City of Bukittinggi, is by Law Number 22 of 2009 concerning Road Traffic and Transportation, but there are still obstacles in its implementation, 2) Efforts law enforcement of two-wheeled vehicle traffic violations by minors has been carried out to the maximum extent possible by the Bukittinggi Police Traffic Unit, but in making these efforts there are obstacles encountered. These efforts are in the form of pre-emptive (coaching), preventive (counseling), and repressive (action) legal remedies.