Two-wheeler Riders Research Articles

A Navigation Assisting Device

Abstract: Due to the increase in the rate, road fatalities caused by factors like lack of helmets, and impaired driving this paper proposes The Smart Helmet system under the IoT infrastructure. This helmet contains a boxed Arduino Uno, HC-05 Bluetooth, an OLED, with a rider safety Android application added to the mix. With GPS and GSM integrated modules in the Smart Helmet, it identifies the accident zones and alert the family members before anything wrong happens. This research presents the development and possibilities of this Smart Helmet systems to minimize the number of two-wheeler riders’ accident related injuries and fatalities.

Demographic profile of ophthalmic injuries following road traffic accidents at a tertiary care hospital in Western India

Context: Road traffic accidents (RTAs) are one of the leading and most common causes of ocular injuries, especially in developing countries like India. Aims: The aim of the study was to study the incidence and clinical presentation of ophthalmic injuries in RTAs. Settings and Design: This was a prospective hospital-based study observational study. Subjects and Methods: A prospective cross-sectional study was conducted among 300 patients in the department of ophthalmology of a tertiary hospital in Western India from October 2021 to October 2023. Detailed ocular examination and investigations were done. Various parameters, including demographics, type of vehicle, type and severity of the injury, and visual acuity at presentation, were studied. The data obtained from the results were expressed in frequency and percentages. Statistical Analysis Used: Not applicable. Results: A total of 300 patients were included in the study. The right eye was affected in 177 out of 320 cases. Male preponderance was noted. The most common ocular finding was ecchymosis 168 (56%) followed by lid lacerations 81 (27%). Majority of the cases were in the age group of 31–40 years (31.67%). The incidence of injuries in two-wheeler riders was 283 (94.33%), of which people who were driving without a helmet were 256 (90.5%). Conclusion: We concluded from our study that the most common age group, 31–40 years, was involved in ocular injuries due to RTAs with male preponderance. Most of those who sustained injuries were riding two-wheeler vehicles without helmets. The involvement of the right eye was more common in unilateral cases. The most common injury found was blunt trauma presenting as preorbital edema and ecchymosis.

Do two-wheeler riders propel towards autonomous driving? A path-based probabilistic study in Indian context

Regardless of the rational benefits of autonomous vehicle adoption towards mitigating mobility goals in urban and sub-urban areas of middle-income countries, adoption of such technology remains thought-provoking. Two wheeled vehicles are often utilized extensively all over the world for short distance trips in sub-urban areas. The present study investigates perceived risks of using four wheeled autonomous vehicles by captive two-wheeler riders for long and short distance trips in densely populated Indian cities. Theoretical autonomous vehicle technology acceptance models were modified considering Indian perceptions in this study. Offline stated preference responses were collected from various universities, open public spaces and governmental organizations of various cities within India. Structural equation models (SEM) and Random Forest (RF) were employed to generate meaningful insights from the surveys conducted. Random Forest (RF) analysis concluded that bicycle riders show medium to low levels of trust towards behavioural adoption intention of autonomous vehicles. According to proposed structural equation models, interest to adopt or willingness to buy autonomous vehicles for two wheeled vehicle users is mostly influenced by perceived trust and risk rather than perceived concerns/benefits for middle and old age groups in India. Perceived ease of use has the most significant marginal effects on two-wheeler riders' perceived risks towards autonomous vehicle adoption, which accounted for more than 20 % of unexplained variance. Results from this research may offer insightful diversity of attitudes towards adoption of autonomous vehicle technologies in India through the means of increased efficiency and reduced travel time and costs along with riders’ risks towards privacy and safety.

Exploring the impact of time pressure on motorized two-wheeler riders’ over-speeding behavior

ABSTRACT Despite being inexpensive and the most accessible travel mode, motorized two-wheelers (MTW) are more prone to crashes than other travel modes. Over-speeding is one of the principal causes of such MTW-related crashes. Past studies are nonexistent in exploring the impact of time pressure and psychological constructs on MTW riders’ over-speeding behavior. Therefore, this paper captures the impact of the time pressure situations and identifies psychological segments (based on travel time-related anxiety) on the over-speeding behavior among MTW riders. A two-step modeling approach, including latent class analysis and multinomial logit model (MNL), was utilized for a stated preference survey of 513 Indian MTW riders. The latent class analysis identified three different psychological segments, i.e. minimally anxious, moderately anxious, and highly anxious. Results showed that over-speeding behavior is more likely to increase with travel time-related anxiety levels and hurriedness. The findings are expected to offer potential policy implications for mitigating speeding-related violations.

Does the current testing standard of chest protectors warrant the devices’ protection for PTW riders in collisions?

Non-inflatable chest protector is a passive safety device to protect powered two-wheeler (PTW) riders from thorax injuries. Before being put on the market, the protectors should be qualified for the European standard tests EN1621-3:2018 which remains uncertain regarding the impact energy level, force evaluation thresholds, and impact configurations. This study aims to ascertain whether the standard EN1621-3:2018 ensures adequate chest protection for PTW riders. Thus, three generic protectors were created to qualify for standard tests and then evaluated against rider chest impact scenarios by finite element modelling. Bar-to-rider and rider-to-bar virtual impacts were simulated with a range of impact energy 50 ∼ 1563 J. In virtual standard tests, protector 1 had the lowest impact force, followed by protectors 2 and 3. In chest impact analysis, the rider with or without protector was rarely found injured under the testing standard energy level (50 J). The chest impact force was below the standard force threshold of 24 kN under all impact energy levels. Protector 3 had a generally better protection performance in terms of chest deflection than protectors 1 and 2, which were not consistent with the standard testing results. The rider chest responses in bar-to-rider impacts differed significantly from the responses in bar-to-rider impacts. Therefore, future testing standard might introduce more appropriate impact energy, force thresholds and accident-relevant impact configurations to ensure the device’s effectiveness in providing protection during PTW crashes. This study furnishes valuable insights into enhancing the design and evaluation methodologies of protective gear, thus directly contributing to the advancement of PTW rider safety.

Prevalence of musculoskeletal discomfort with associated disability among adult male motorcyclist

BackgroundThis study conducted to determine the prevalence and severity of musculoskeletal discomfort among two-wheeler riders; however, musculoskeletal discomfort refers to pain, discomfort, or impairment in the muscles, bones, joints, tendons, ligaments, or other structures that support the body’s movement. It is a common problem experienced by individuals involved in various physical activities, including motorcycle riding.MethodsThis investigation was longitudinal research in which the Nordic muscular questionnaire (NMQ) was used to rule out the possibility of musculoskeletal disorders in motorcyclists. In Karachi, Pakistan, data were collected beginning in September of 2021 and continuing through February of 2022 using the convenience sampling method. Sixty-four individuals made up the sample. Participants were males ranging between the ages of 19 and 50 who rode standard motorcycles for their commute for about 6 to 8 h daily. Participants who had a tumor, an infection, or other comorbid are excluded.ResultsSixty-four participants were included in this study, out of which 40 (62.5%) reported difficulty and discomfort in their neck, followed by their lower back (48.5%), shoulders (34.4%), and hips (26.6%). Sixteen motorcyclists (25%) complained wrist pain. When asked out their level of discomfort. However, 51.6% of individuals experienced lower back pain at the 12th month, while 46.9% had neck pain. 28.1%, 17.2%, and 14.1% reported shoulder, hip, and upper back discomfort. 51.6% of individuals had not seen a specialist for lower back symptoms. Lower back, neck, shoulders, and hip have been affected the longest, according to participants.ConclusionIn conclusion, motorcyclists had a substantially greater rate of musculoskeletal problems than other drivers. Regulating musculoskeletal disorders in motorcyclists helps reduce symptoms and clinical indications of disease.

Accustomed or Regulated: Influencing factors of two-wheeler riders’ illegal Lane-Transgressing behavior when overtaking

Illegal lane-transgressing is a typical aberrant riding behavior of riders of two-wheelers, i.e., motorcycles, bicycles, and e-bikes, which is highly frequent in accident reports. However, there is insufficient attention to this behavior at present. This study aims to explore the socio-psychologic factors that influence the illegal lane-transgressing behavior of two-wheeler riders when overtaking. For this purpose, a questionnaire was first composed. The questionnaire included the behavioral intention of two-wheeler riders towards illegal overtaking behavior and five influencing factors: safety knowledge, descriptive norms, injunctive norms, perceived behavior control, and risk perception. Second, a survey was conducted on different two-wheeler riders in Xi’an. Third, various types of two-wheelers were analyzed jointly and separately by structural equation models and analyses of variance. Results show that e-bike riders were more similar to motorcycle riders in behavioral intentions, with their risk perception weaker than other riders. Descriptive norms and perceived behavior control played the most significant roles in the structural equation model. It was also found that two-wheeler riders with a car license had better traffic safety performance. Based on the above results, it is recommended that attention be paid to illegal lane-transgression in the process of law enforcement and education, and a higher level of safety training should be provided for two-wheeler riders.

Automating Helmet Usage Detection: A YOLOv8 Based Framework

Abstract: The biggest threat to Powered two-wheeler(PTW) riders is a head injury. With the humongous amount of daily commuters on such PTWs, the risk only increases substantially. In such cases, helmets reduce the risk of head injuries in accidents but not every citizen is keen on their use. In India, where the use of motorcycles is widespread, ensuring helmetuse remains a challenge. This study explores the effectiveness of YOLOv8(You Only Look Once) a state-of-the-art single-stage object detection algorithm for helmet detection on Indian roads [14]. The CNN(Convolutional Neural Networks) based technologyimplements many other efficient, reliable and quick algorithmsto train, validate and predict the object’s detection, segmentationand classification task. We leverage the use of a publicly available Indian helmet dataset from Kaggle, containing 942 images with annotations. This an image dataset of real-life powered two-wheeler riders. The dataset has images and video frames for training on 5 different objects/classes along with annotations that specify thoseobjects. This multi-class approach offers valuable insight intohelmet usage patterns paves shows us the way for real-world applications for automated traffic monitoring. Real-time helmet and number plate detection can become a game changer in trafficmonitoring and can strengthen basic safety laws

Assessing muscle energy technique and foam roller self-myofascial release for low back pain management in two-wheeler riders.

Pain in the lower back is a major concern in today's era due to prolonged sitting in two-wheeler riders, mainly due to hamstring tightness. It also creates physical disability and impairment in activities of daily living. The study aimed to compare the efficacy of muscle energy technique (MET) and self-myofascial release (SMFR) using the foam roller on hamstring flexibility, dynamic balance, and physical disability amongst two-wheeler riders with chronic low back pain (LBP). Participants were randomized into two intervention groups, MET and SMFR using the envelope method, with each group having 20 participants. Hamstring flexibility and range of motion for knee extension and the lower back were assessed using the active knee extension test (AKE-L and AKE-R) and sit and reach test (SRT), while the dynamic balance was assessed by the star excursion balance test (SEBT) and physical disability by Roland-Morris Disability Questionnaire, (RMDQ). Measurements were taken at baseline and after 4 weeks of intervention. This study demonstrated that both SMFR using a foam roller and MET are effective in enhancing hamstring muscle flexibility, (SRT-F(1, 38) = 299.5, p < 0.001; AKE-R-F(1, 38) = 99.53, p < 0.001; AKE-L-F(1, 38) = 89.67, p < 0.001). Additionally, these techniques significantly improved dynamic balance in various directions, including anterior (ANT), anteromedial (AMED), medial (MED), posteromedial (PMED), posterior (POST), posterolateral (PLAT), lateral (LAT), and anterolateral (ALAT) directions (p < 0.01). Furthermore, there was a significant reduction in physical disability (RMDQ-F(1, 38) = 1307, p < 0.001), among two-wheeler riders suffering from chronic LBP. Compared to MET, SMFR using foam rollers was found to be more effective in enhancing hamstring flexibility, improving balance, and decreasing disability level on the RMDQ after 4weeks.

An enhanced method for evaluating the effectiveness of protective devices for road safety application

This paper presents an enhanced probabilistic approach to estimate the real-world safety performance of new device concepts for road safety applications from the perspective of Powered Two-Wheeler (PTW) riders who suffer multiple injuries in different body regions. The proposed method estimates the overall effectiveness of safety devices for PTW riders by correlating computer simulations with various levels of actual injuries collected worldwide from accident databases. The study further develops the methodology initially presented by Johnny Korner in 1989 by introducing a new indicator, Global Potential Damage (GPD), that overcomes the limitations of the original method, encompassing six biomechanical injury indices estimated in five body regions. A Weibull regression model was fit to the field data using the Maximum Likelihood Method with boundaries at the 90% confidence level for the construction of novel injury risk curves for PTW riders. The modified methodology was applied for the holistic evaluation of the effectiveness of a new safety system, the Belted Safety Jacket (BSJ), in head-on collisions across multiple injury indices, body regions, vehicle types, and speed pairs without sub-optimizing it at specific crash severities. A virtual multi-body environment was employed to reproduce a selected set of crashes. The BSJ is a device concept comprising a vest with safety belts to restrict the rider’s movements relative to the PTW during crashes. The BSJ exhibited 59% effectiveness, with an undoubted benefit to the head, neck, chest, and lower extremities. The results show that the proposed methodology enables an overall assessment of the injuries, thus improving the protection of PTW users. The novel indicator supports a robust evaluation of safety systems, specifically relevant in the context of PTW accidents.

Riding the change: Exploring women’s navigation of risk and respectability through two-wheeler mobility in Dhaka

This paper sheds light on the understudied phenomenon of female two-wheeler riders in Bangladesh, and their everyday negotiations of moto-mobility in patriarchal public spaces. In transportation research, female riders have traditionally been characterized as occupying the pillion seat. By conducting ethnographic observations of two-wheeler training clubs in Bangladesh (Dhaka) and qualitative interviews with female riders, the paper expands the discussion of gender and mobility beyond the usual focus on car and public transport in the Global South, which is critical for planning equitable and inclusive transport policies. Using the motility framework (access, competence and appropriation), this paper unravels the cultural, spatial and social dynamics of women's everyday moto-mobility. Through engagement in women-only training clubs which also serve as gendered social spaces, female riders actively build technical and spatial competence. They opt for safety-conscious approaches in driving behaviour, subverting traditional/masculine notions of dominance and authority. The findings also reveal how young riders subvert families and communities to acquire and ride motorbikes, but still largely conform (and adapt) to social norms to manufacture respectability (following normative sartorial choices, sex-segregated seclusion/purdah). In other words, their resistance is in proportion to how much they can assert themselves without facing negative repercussions from communities and society at large. As their presence and performances of micro-subversions rewrite spatial geographies (of risk and respectability), this has implications for reshaping the everyday transport geographies of women in urban public spaces. By presenting gender scripts as an element of appropriation in the constant negotiation of mobility, this paper contextualises motility in a non-western setting, and shows how multiple (seemingly contradictory) gender performances can feed into each other and regroup to facilitate women's access (to mobility) and rights in a gendered city.

Analysis of Factors Affecting the Severity of Injuries in Electric Two-Wheeled Vehicle Crashes with or without Violation: A Random Parametric Logit Model considering Heterogeneity of Means and Variances

Electric two-wheeled vehicle is one of the main commuting tools in China, but they are also more likely to have violations of the road group. In order to study the effect of the presence of violation on the severity of road traffic crashes among electric two-wheeler riders, in this study, the effects of rider characteristics, road characteristics, collision characteristics, and environmental characteristics on the severity of injuries of electric two-wheeled vehicle riders were considered separately analyzed based on the data of 6403 two-wheeled electric vehicle traffic crashes in a region of Shandong Province from 2015 to 2021, and a random parametric logit model considering the heterogeneity of the mean and the variance (RP-HMV logit) was established based on the presence or absence of violation behaviors of riders, respectively, in order to explore unobserved heterogeneity. In order to test the validity of the model for modeling the injury severity of pedestrians riding electric two-wheelers, multinomial logit (MN-logit model), and random parameter logit model (RP-logit) were estimated, and the results showed that the RP-HMV logit model was significantly superior in terms of goodness of fit. The study showed that some of the factors differed somewhat between the two scenarios, such as gender, while the factors that were significant in both scenarios were &gt;60, broken pavement, street lights at night, no street lights at night, mixed motorized and nonmotorized lanes, sidewalks, other angles, no control, severe weather, and visibility &lt;200 m, where the severe weather and visibility &lt;200 m were random parameters obeying normal distributions, there is a significant difference between having street lights and no control at night in both scenarios, and the difference is significant. The results of the study can provide a reference for the development of targeted countermeasures to improve the traffic safety of electric two-wheeled vehicles in China.

A hazard-based duration model for analyzing crossing risk exposure time of electric two-wheeler riders at signalized intersections

Electric two-wheeler riders' invasion behavior is a violation and a significant contributor to traffic safety concerns. Invasion duration, an essential parameter in invasion behavior, measures the travel time of an ETW rider in a motorized lane and represents the rider's risk exposure time. This paper endeavors to elucidate the characteristics of invasion behavior and model invasion duration. Using trajectory data, it addresses questions about the length, degree, duration, and two phases of invasion behavior. The hazard-based duration model is employed to fit the duration and analyze the factors influencing it. The results indicate that characteristics exhibit mean values of 3.23 s for duration, 8.313 m for length, and 0.629 m for degree. The log-logistic Accelerated Failure Time (AFT) model exhibits better performance for fitting invasion duration than the Weibull and the Log-normal AFT models. The findings of this paper can provide a reference for enhancing traffic safety and efficiency.

Pattern of injuries in Two-Wheeler riders involved in Road Traffic Occurrence –an Autopsy Study

Background: Road traffic injuries are India’s sixth leading cause of death, affecting youth and middle-aged individuals. Rapid motorized traffic growth, particularly two-wheelers (72% of vehicles), has increased accidents. Inadequate and non-uniform helmet regulations worsen the situation. Road injuries strain healthcare, demanding hospitalization, and rehabilitation. Kerala experiences significant two-wheeler accidents, often fatal due to head injuries. Studying injury patterns and causes among riders in fatal accidents is vital. Methods: A cross-sectional study was conducted at Govt TD Medical College, Vandanam, Kerala, following approval from the Institutional Ethics Committee. The study included all deaths of two-wheeler riders involved in road traffic accidents with clear vehicle information, excluding decomposed or unidentified bodies. A total of 101 cases were analyzed, recording external and internal injuries directly onto the Proforma during autopsy. Data were summarized using frequencies and proportions, while the chi-square test assessed relationships between categorical variables. Conclusion:The study found that most accidents occurred between 6-9 pm, involving mainly male (91.1%) two-wheeler riders (80.8%). Few wore helmets (5%). Head injuries (97%) were common, often caused by ejection from vehicles (87%). Non-helmet use and ejection related significantly to head injuries, a leading cause of twowheeler accident fatalities

Do the two-wheeler safety harnesses effective in rider’s safety – Analysis of attitude and switching intention

To strengthen the safety of riders and kids in less than four years, the Indian Government drafted a new policy for two-wheeler riders. This study determines the riders' behavioural changes and intention to shift to entry-level four-wheelers. The study was conducted on riders who use two-wheelers as a regular mode of travel, have kids four years or less, and are aware of the new vehicle policy. An offline survey was conducted using a self-structured questionnaire by contacting the riders in person on the 329 respondents. The collected responses were analysed using the CB-SEM approach with the help of SPSS Amos software. The study reported that a rider’s perception of safety, Government policies, add-on safety harness and cost significantly determine the rider’s attitude. Further, the rider’s attitude significantly determines the rider’s switching intention from two-wheeler. The study has wide applicability to policymakers and NGOs to understand the rider’s mindset before effectively implementing safety protocols. The study also highlighted the effectiveness of safety harnesses in reducing casualties and analysed the causes of road casualties. The study also highlighted the global scenario of safety harnesses and their role in reducing road casualties. The study is an original work of the authors that, through insights on Rider’s perception of the policy measures taken to improve public safety during Two-wheeler riding.

Motorized two-wheeler riders’ rear brake application in sudden hazardous event of animal crossing

ABSTRACT This study aims to quantify the riders’ performance in the sudden event of animal crossing using explanatory variables such as psychological riding conditions and socio demographic parameters. The participants were asked to ride four sessions on the motorized two-wheeler simulator in randomized order: 1) Base, 2) Distraction, 3) Time pressure, and 4) Distraction along with Time pressure. The rear brake application was classified into four groups using K-means clustering: No braking, Mild braking, Harsh braking, and Very Harsh braking. Further, a multinomial logistic regression model was developed to quantify the rear braking behavior. The results from the study revealed that the odds of applying the harsher brakes are only 0.32 times in comparison to mild braking when riders are distracted. Overall findings indicate that riders’ psychological conditions can alter rider’s behavior, and driver training focusing on several hazards can further help in improving road safety.

Model for Predicting Lateral Shifts and Driving Style of Motorized Two-Wheelers

The compact sizes, lack of available physical protection, and complex maneuvering patterns of motorized two-wheeler (MTW) riders make them more vulnerable to crash risks and accidents. Considering the increased vulnerability of MTWs in dense urban mixed traffic environments, a proper evaluation and modeling of their lateral movement decisions and driving style can enhance safety associated with the riders and augment the reliability of the existing microsimulation models. Utilizing trajectory data of a six-lane divided urban arterial, the current study attempts to investigate the lateral movement (lateral shift) tendency of MTWs, addressing different influential variables that may affect riders’ decisions and describing how this choice is affected by prevailing traffic conditions. Based on several driving style parameters, such as change in speed, change in angular position, and longitudinal gap maintained with rear vehicles, this study further contributes to the existing literature by proposing a new index for identifying the driving style of riders during the lateral shifting process. Modeling results of a multinomial logit model indicated the importance of considering longitudinal and lateral gaps, vehicle speeds, and lateral fluctuations made by the subject MTW in the past trajectories in modeling the lateral shift decisions of riders. Considering the number of lateral fluctuations as an indicator of MTWs’ driving style, a new “aggressiveness index” is defined and, accordingly, a modeling approach is proposed to classify aggressive and non-aggressive driving styles of the riders. The results suggest that the history of past trajectories of the subject MTW during lateral shifting should be considered, and consideration of a non-linear relationship among the parameters can result in a better classification of driving style of MTW riders.

Preliminary evaluation of a passive safety device concept for the protection of riders

Powered Two-Wheeler riders are over-represented in crash statistics worldwide, and currently available safety solutions have not triggered a decreasing trend. A new device concept, comprised of a wearable vest with belt stripes sewn on the back and fastened to the motorcycle frame through a metal cable, was developed to save riders’ lives. The objective of this paper is the evaluation of its protective effectiveness in a set of representative crash configurations selected from the ISO 13232 database. The configurations were reproduced in a multibody environment, and each of them was characterised through the following parameters: the impact speeds, contact points, relative heading angle, and the Boolean presence of the safety device. The preliminary evaluation revealed encouraging outcomes as several body regions reported reduced injury indices. However, the benefits depended on the speed range and impact configuration. Overall, the benefits outweighed the additional risks in the selected accident database.

Impact Area and Speed Effects on Powered Two-Wheeler Crash Fatality and Injury Risk

&lt;div&gt;The primary objective of this study was to evaluate the fatality risk of powered two-wheeler (PTW) riders across different impact orientations while controlling for different opponent vehicle (OV) types. For the crash configurations with higher fatality rate, the secondary objective was to create an initial speed–fatality prediction model specific to the United States. Data from the NHTSA Crash Reporting Sampling System and the Fatality Analysis Reporting System from 2017 to 2020 was used to estimate the odds of the different possible vehicle combinations and orientations in PTW–OV crashes. Binary logistic regression was then used to model the speed–fatality risk relationship for the configurations with the highest fatality odds. Results showed that collisions with heavy trucks were more likely to be fatal for PTW riders than those with other OV types. Additionally, the most dangerous impact orientations were found to be those where the PTW impacted the OVs front or sides, with fatality odds, respectively, four and five times higher than when the OV rear-end was impacted. The high variability in the odds of different crash configurations suggests the importance of considering the impact orientation factor in future injury prediction models. The speed–fatality prediction models developed for head-on and side crashes could provide an initial tool to evaluate the effectiveness of advanced rider assistance systems and other safety countermeasures in the United States, particularly those that result in speed reductions.&lt;/div&gt;

Pattern of Fatal Injuries Sustained by Two-Wheeler Riders Due to Road Traffic Mishap in Agra Region

Pattern of Fatal Injuries Sustained by Two-Wheeler Riders Due to Road Traffic Mishap in Agra Region