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 Study sets new distance record for medical drone transport
13.09.2017 | Johns Hopkins Medicine

nachricht Researchers 'count cars' -- literally -- to find a better way to control heavy traffic
10.08.2017 | Florida Atlantic University

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: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Stiffness matters

22.02.2018 | Life Sciences

Magnetic field traces gas and dust swirling around supermassive black hole

22.02.2018 | Physics and Astronomy

First evidence of surprising ocean warming around Galápagos corals

22.02.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>