Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Slow Down

26.02.2010
Muhammad Akram Adnan and Mohd Jamaludin Md Noor studying to reduce speed by transferring an upward force to a vehicle
Reduce our speed
Reported by Megawati Omar
Research Management Institute, UiTM
as automobiles industry expands, much has been debated about unnecessary casualties due to road accidents. At present the rate of road accident deaths in Malaysia hovers around 24 deaths per 100 000 people. Much deliberation and thoughts have taken place on how to reduce the rate of accidents, hence, Muhammad Akram Adnan and Mohd Jamaludin Md Noor of UiTM, Malaysia are studying to reduce the speed of vehicles, especially cars, as speed and road accidents casualties have a strong relationship.

They are to develop a geometric standard for effective and ‘friendly’ hump speed reducer that considers human factor. Humans are sometimes good in judging the impact of height but otherwise in the impact of speed. Worse, many ignore road safety and do not care about others even when driving within a school area. Other impacts of high speed on the road are air pollution, noise level and traffic safety.

Another nature of road accidents in Malaysia is that the number will rise in festival seasons thus attention is always focused on deaths on the road during the three festivals: Hari Raya, Chinese New year and Deevali. But in actual fact deaths and injuries occur all year round which include pedestrians. Investigation of road accidents show that when pedestrians are hit by cars at 30km/hr 5%, they will be killed, most injuries are slight and 30% suffer no injury, but those hit by cars at 50 km/hr, 45% killed and many seriously injured, and at 65 km/hr 85% killed.

In this case, according to Muhammad Akram Adnan and Mohd Jamaludin Md Noor, the speed reducer works by transferring an upward force to a vehicle, as it traverses. The force translates it into vertical displacement and acceleration. The displacement induces a front to back pitching motion to the vehicle occupants. As speed increases the amplitude, i.e. the vertical displacement, and pitching also increase. The magnitudes of displacement and acceleration are the measure for the uncomfortable sensation.

For vehicle speed of less than 70 km/h, this speed reducer is able to reduce speed less than the threshold value of 40 km/h, offer acceptable level of discomfort for vehicle occupants, avoid contact with vehicle base (thus no vehicle damage), and maximise overall road safety for road users.

Contact:

mohdjamaludin@salam.uitm.edu.my

Muhammad Akram Adnan
Mohd Jamaludin Md Noor
Malaysian Institute of Transport (MITRANS)
Faculty of Civil Engineering,
Universiti Teknologi MARA
40450 Shah Alam, Selangor, MALAYSIA

Megawati Omar | Research asia research news
Further information:
http://inforec.uitm.edu.my
http://www.researchsea.com

More articles from Transportation and Logistics:

nachricht Laser rescue system for serious accidents
29.11.2016 | Laser Zentrum Hannover e.V.

nachricht Bremen University students reach the final at robotics competition with parcel delivery robot
19.10.2016 | BIBA - Bremer Institut für Produktion und Logistik

All articles from Transportation and Logistics >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>