Articles tagged with Bicycles
Researchers at Texas A&M University and DEVCOM Army Research Laboratory developed a hybrid foam with a 3D-printed plastic skeleton, offering tunable, lightweight and ultra-durable properties. The composite combines ordinary foam with plastic struts, allowing it to absorb more energy and withstand greater forces.
A Simon Fraser University study reveals Canada's cycling infrastructure expanded by 3,596 km between 2022 and 2024. However, areas with more children and older adults saw less growth in cycling infrastructure, highlighting the need for more inclusive transportation planning.
A new study from the Complexity Science Hub found that European cities with a metro system have a significant reduction in car use, with an average of 37% of car trips compared to 50% in cities with only trams and 54% without rail. In contrast, tram cities show no measurable impact on reducing car use.
Lowering residential speed limits to 30kph significantly boosts bicycle riding safety without affecting car trip times, according to a study. The reduction in traffic stress leads to more people choosing bikes as a safe mode of transport.
A recent study published in the Journal of Safety Research found that rented e-bikes have an eight times higher crash risk than rented e-scooters, calculated based on trip distance. The researchers used GPS data to compare micromobility in seven European cities and found a surprising result.
The study reveals that riders who deliberately crash or cause dangerous situations when riding are a significant concern. The researchers also found that one-handed steering and group riding increase the risk of crashing by six times and almost triples it respectively.
Researchers at the University of Gothenburg developed a bicycle helmet with improved shock-absorbing material that utilises auxetic metastructures. The new helmet design provides better protection against head injuries, is lighter, and can be customised to individual head shapes using 3D printing.
University of Missouri researchers developed a method using lidar and AI to analyze pedestrian, cyclist, and vehicle interactions at traffic signals. The approach aims to enhance driver awareness, reduce accidents, and improve mobility.
A University of Bristol-led study suggests electric scooter schemes reduce bicycle collisions by around 20% in the UK. The research found that even after COVID-19 restrictions lifted, e-scooter scheme areas saw a significant decrease in serious and fatal bicycle collisions.
A new study by University of Toronto researchers has developed a model that can help municipalities choose optimal locations for bike lanes, minimizing congestion and increasing cycling ridership. The model uses traffic and commuter mobility data to predict the impact of bike lane expansion on driving travel time and emissions.
A new study suggests that many cyclists fail to wear helmets due to perceived inconvenience and discomfort, yet incentivizing them with free helmets, education, and reminders can increase helmet use. The research found that 75% of participants who received incentives wore helmets consistently after one year.
Researchers identified three key trauma features - boggy swelling to the head, abdominal bruising, and thigh swelling or deformity - that prompt immediate review and prioritized treatment. The study found children brought in by carers were seen within an average time of 58.5 minutes, highlighting the need for improved triage alerts.
A groundbreaking Oregon State University study found that bicycle rolling-stop laws do not increase the risk of accidents for cyclists or drivers. The study showed that education and awareness about these laws can actually improve safety, as bicyclists become more comfortable yielding at stop signs.
A recent study found that e-bicycle injuries doubled every year from 2017 to 2022, while e-scooter injuries rose by 45%. The researchers also noted that e-scooter riders were more likely to suffer internal injuries and conventional scooter riders were more likely to experience upper extremity injuries.
A cross-sectional study found more injuries and hospitalizations associated with electric vehicles, highlighting the need for safety changes in micromobility policies and infrastructure.
Portland State University's transportation data centers, PORTAL and BikePed Portal, have received significant updates with new funding and exciting innovations. The $1.6 million PORTAL funding will support its activities for the next five years, while BikePed Portal has secured $100K in additional funding.
According to a new study, around 51% of global commutes are made by car, varying greatly across regions. In contrast, cities like Copenhagen, Paris, and Utrecht rely heavily on cycling and public transportation. The US also shows minimal variation in modal share across cities, with nearly 92% of commutes made by car.
A small study found that tandem cycling paired with virtual reality improves the physical and emotional well-being of both participants. Care partners also showed significant improvements in resiliency and depression scores after the intervention.
Researchers found that turbans greatly reduced the risk of skull fractures in areas covered with thick fabric, while different turban styles affected head injury risk. The study recommends covering larger areas with thicker fabric and reducing friction to minimize brain injuries.
Scooter-related injuries have significantly increased in the US, with a nearly three-fold rise from 2016 to 2020 and more than half of those injured patients undergoing major operations. Scooters are more frequently associated with long bone fractures and paralysis compared to bicycle riders.
Scooter-related injuries in the US nearly tripled from 2016 to 2020, resulting in more severe injuries and higher healthcare costs. The study found that scooter riders were more likely to experience long bone fractures and paralysis than bicycle riders.
A recent study by the University of Surrey found that group cyclists can reduce their exposure to vehicle pollutants by spreading out, especially in busier roads. The research highlights the importance of considering wind movement and positioning within a group to minimize exposure.
A Florida Atlantic University study reveals that while private automobiles remain dominant, the share of car trips has decreased since its peak in 2001. In contrast, transit, non-motorized, and taxicab trips have increased. Lower-income groups rely heavily on public transportation due to limited mobility options.
The study found that pavement skid resistance is crucial in reducing bicycle and electric scooter crashes. Pavements with higher skid resistance, such as asphalt and concrete, are recommended for bike lanes to minimize the risk of falls and collisions.
A MIT experiment equipped second-hand bicycles with mobile trackers to track their whereabouts over time, revealing that most stolen bikes remain in the local area. The majority of bikes were resold and re-used within the city's bike fleet.
Researchers from the University of Tsukuba found that mandatory cognitive testing during driver's license renewals in over-75-year-olds leads to decreased motor vehicle crashes. However, this policy change is associated with an increase in bike and pedestrian injuries among the same population.
Bicycle-related injuries in the US decreased over time, with an increasing rate of injuries among older patients, particularly head injuries and fractures. Helmet wearing is crucial regardless of age to prevent such injuries.
A study by Dr Ansgar Hudde found that the Dutch cycle around twice as often as Germans during winter months due to differences in mobility culture. This is attributed to a cycling culture in Germany that only encourages seasonal cycling, whereas the Netherlands promotes year-round cycling.
The Washington D.C. metro area's dashboard is being developed at PSU, allowing users to see all the data together in one place. The project aims to improve nonmotorized planning by providing clean, quality-checked biking and walking count data.
A bike box setup can help cyclists stay safe at urban, signalized intersections by providing a visible space to navigate through the intersection. The study found that among three treatments, bike boxes were the most versatile, offering a balance of safety and requiring riders to perceive potential danger.
Researchers analyzed data from bike share stations in NYC, Chicago, and Philadelphia to understand disparities in bike share use. Key findings include concerns about traffic safety and personal safety among lower-income and people of color residents.
A 20-year review of bicycle injuries found over 1 million US children fractured a bone while riding a bike, with most being boys between ages 10-15. The study also showed that nearly 87% of patients with skull fractures were not wearing helmets at the time of injury.
A recent study found that over 11,000 people treated in US emergency departments for drug-related bike injuries were men, with methamphetamine being the most common substance involved. The study highlights the need for further research and interventions to prevent these incidents.
A QUT study observed and compared 3401 bicycle food delivery riders and private cyclists in Brisbane, finding that they generally don't take more risks on the roads. The study found that helmets were worn by 97.4% of riders, with delivery riders wearing them at a higher rate than private cyclists.
A new optimization model aims to improve the efficiency of bike-sharing systems by predicting user demand and adjusting service operations accordingly. The model has shown promising results, reducing problems by 41% compared to no rebalancing.
A study of nearly 3,200 individuals found that electric scooter riders were more likely to be young and intoxicated when injured. Implementing stricter helmet and alcohol policies, improving infrastructure, and awareness campaigns may help reduce injuries among electric scooter users.
A team of researchers has created an online dashboard to track equity requirements in 239 shared micromobility programs across the US. The dashboard provides city officials with valuable insights on best practices for expanding access to these programs, including technology access, reduced fare options, and adaptive vehicles.
Researchers developed three new bike count models combining traditional location-based data with crowdsourced GPS data, showing improved accuracy in predicting bicycle volumes. The models demonstrated the value of integrating different data sources to enhance transportation planning.
A new analysis suggests that Black and Hispanic Americans are disproportionately affected by traffic-related deaths, and that these disparities are larger than previous estimates show. The study found that travel distances vary among racial/ethnic groups when walking, cycling, or driving, and when these differences in activity levels a...
Researchers at MIT City Science explore the impact of autonomy on shared micro-mobility systems, proposing it as a solution to mitigate challenges such as rebalancing and vehicle oversupply. An agent-based simulation tool assesses fleet performance and user experience, providing insights for informed decisions.
A new white paper from Portland State University explores how purchase incentive programs can expand the current e-bike market, identifying effective program structures and administration methods. The study examines impacts and statistics from around 75 e-bike incentive programs in North America.
Researchers at Tokyo University of Science propose two new search strategies to reduce the computational cost of rebalancing in bicycle-sharing systems. The approaches focus on finding feasible solutions more efficiently and redefine the problem to minimize solving time.
Researchers studied cyclists in Tucson, AZ, revealing differences in behavior among commuters, recreational riders, and athletes. Infrastructure design can address these needs, such as separate paths and lanes for various types of cyclists.
A recent UCLA study found that the injury rate for e-scooter riders in Los Angeles is higher than the national rates for motorcycle, bicycle, car, and pedestrian injuries. The study estimates 115 injuries per 1 million e-scooter rides, highlighting a growing risk as e-scooters proliferate globally.
Researchers from Tokyo University of Science analyzed usage patterns of bicycles in four major US cities to improve bicycle sharing system efficiency. They found temporal patterns and similarities between weekdays and weekends, contradicting previous studies.
Researchers from Chalmers University of Technology present a framework for comparing e-scooter safety, highlighting the importance of analyzing rider behavior and identifying strategies for improving traffic safety. The study found that braking performance is superior on bicycles, while e-scooters excel in steering maneuvers.
Researchers analyzed user survey data and on-the-ground observations to understand e-scooter use and safety. The study found that older riders were less likely to experience crashes, while helmet use was lower in observed data compared to surveyed users.
A Surrey study found that babies and children in bike trailers breathe in more polluted air than their parents, but using trailer covers can reduce exposure by half. The researchers also discovered a significant reduction in air pollution during lockdown periods.
A new online tool tracks e-bike purchase incentive programs in the US and Canada, providing a point of reference for future policy development. The tracker reveals that most programs set incentive levels fairly arbitrarily, with little thought given to their potential impact on specific groups or income brackets.
A study by sociologist Dr. Ansgar Hudde found that city dwellers with high education levels cycle significantly more than those living in rural areas, with a strong correlation between education level and bicycle mobility. This trend is attributed to the perceived status and health benefits associated with cycling.
A team of engineers at Northern Arizona University is developing an instrumented bike with sensors and a video device to detect real-time quality of cycling infrastructure systems. The bike will share data with cyclists and municipal authorities to improve road safety and maintenance.
Researchers have developed a high-resolution radar sensor that can reliably distinguish between cars and pedestrians, providing counts, speed, and direction of each moving target. The sensor outperforms cameras in low-visibility conditions and beats conventional radar by providing a richer picture.
Researchers develop an algorithm to find optimal or near-optimal solutions in the space of 'infeasible solutions' to speed up search, alleviating traffic congestion and improving city living. A novel solution to a combinatorial optimization problem in bicycle sharing systems is proposed.
A recent study found that COVID-19 lockdowns led to significant increases in bicycle-related injuries and gun-related injuries across four US cities. Trauma cases at Level I trauma centers showed a 100% rise in bicycle-related trauma rates and a 23.5% increase in gunshot wounds.
A new study uses machine-learning algorithms to predict the next phase of a traffic signal, giving bicyclists a smoother ride. The researchers achieved high accuracy with 85% prediction success rate, using LSTM and 1D CNN models.
The Research Roadmap addresses important active transportation needs, focusing on speed management strategies, pedestrian and bicyclist safety, and addressing racial and economic disparities. Funded by NCHRP, the project provides guidance for future research directions.
Researchers discovered spoked vertebrae in azhdarchid pterosaurs that supported their long necks, enabling them to fly with heavy prey. The internal structure was found to be helically arranged like bicycle wheel spokes.
A new study published in the Journal of Transport & Health found that a jughandle design can virtually eliminate single bicycle crashes at railway crossings. The design realigns the approach angle to about 60 degrees, reducing the risk of tire being caught in the gap between the rail and pavement.
A study by Portland State University researchers reveals that the presence of cyclists does not significantly slow down cars on low speed, low volume urban roads without bicycle lanes. The 1 mph differential in speed caused by cyclists was found to be negligible from a practical perspective.
Low birth weight is linked to poor cardiorespiratory fitness in young adults. The study found that babies born at term weighing more than average had better fitness levels, with a 7.9-watt increase for every 450 grams of extra weight.