Experts question safety features of China's straddling bus

August 8, 2016

Beijing, Aug 8: China's "straddling bus", trumpeted as an innovative idea to deal with traffic jams, is facing increasing scrutiny with many questioning the vehicle's safety features and whether it would ever come into service, a media report said today.

straddlingbus1

The Transit Elevated Bus (TEB), grabbed worldwide attention last week after China's official published pictures of the vehicle during a test run on a 300-metre track in Qinhuangdao city in Hebei province.

The bus is designed to run on rails and rises two metres above the road, allowing cars to pass underneath to ease congestion.

While the state-run Xinhua suggested last week the project was an excuse to raise funds rather than create an innovative solution to traffic problem, the experts have also questioned the safety and practicality of the technology, Hong-Kong based South China Morning Post reported.

It would be difficult for the bus to negotiate turns and motorists driving under it would have their line of sight severely limited, increasing the chance of accidents on the road, said Sun Zhang, a transportation professor at Tongji University in Shanghai and an expert in urban track transport systems.

"It can only run on wide and straight roads. In big cities where roads are winding and jammed [with traffic], such roads are in shortly supply. The biggest advantage of this project is that its designers have rich imaginations," he said.

straddlingbus2

Several employees of the TEB at Qinhuangdao city draped the bus with black curtains to prevent bystanders looking at the vehicle as the project has kindled the interest of curious local residents, the report said.

Also the idea of a bus to ease road congestion is attractive in China where car ownership is rapidly increasing, along with the number of traffic jams.

China had 172 million cars on the road at the end of last year, with 280 million licensed drivers. Research by the car-hailing service Didi Chuxing, based on data gathered in 400 Chinese cities, said the average car speed was less than 25 kmph in the first half of this year, the report said.

The publicity has created a wave of interests specially among the investors. After a series of media reports in China have questioned the technological viability and the feasibility of the project, some investors worried about the scheme to come down to check out the site.

"The company and the project are beset by so many questions. We are all worried," Zhang Ying, an investor, said

He has invested about 500,000 yuan (USD 75085) into Huaying after its sales staff told him annual returns could be as high as 14 per cent, the report said.

Yao Xu, an official in charge of press inquiries at TEB Technology told 'Morning Post' that an "official test run" would be arranged in the coming weeks.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
June 10,2020

US dictionary Merriam-Webster will update the meaning of the word "racism" after being contacted by a Missouri black woman, who claimed the current definition fell short of including the systematic oppression of people of colour, according to media reports.

"A revision to the entry for racism is now being drafted to be added to the dictionary soon, and we are also planning to revise the entries of other words that are related to racism or have racial connotations," according to a statement of the 189-year-old dictionary shared by Kennedy Mitchum, a recent graduate of Drake University in Iowa, on her Facebook.

Mitchum, 22, emailed the dictionary last month, following the death of African American George Floyd in the custody of four Minneapolis police officers, Xinhua news agency reported.

"I kept having to tell them that definition is not representative of what is actually happening in the world," Mitchum told CNN. "The way that racism occurs in real life is not just prejudice, it's the systemic racism that is happening for a lot of black Americans."

Merriam-Webster's first definition of racism is "a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race."

"It's not just disliking someone because of their race," Mitchum wrote in a Facebook post on Friday. "This current fight we are in is evidence of that, lives are at stake because of the systems of oppression that go hand-in-hand with racism."

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
July 9,2020

U.S. electric vehicle maker Tesla Inc is "very close" to achieving level 5 autonomous driving technology, Chief Executive Elon Musk said on Thursday, referring to the capability to navigate roads without any driver input.

"I'm extremely confident that level 5 or essentially complete autonomy will happen and I think will happen very quickly," Musk said in remarks made via a video message at the opening of Shanghai's annual World Artificial Intelligence Conference (WAIC).

"I remain confident that we will have the basic functionality for level 5 autonomy complete this year."

Automakers and tech companies including Alphabet Inc Waymo and Uber Technologies are investing billions in the autonomous driving industry.

However industry insiders have said it would take time for the technology to get ready and public to trust autonomous vehicles fully.

The California-based automaker currently builds cars with an Autopilot driver-assistance system.

Tesla is also developing new heat-projection or cooling systems to enable more advanced computers in cars, Musk said.

Industry data showed Tesla sold nearly 15,000 China-made Model 3 sedans last month.

Tesla has become the highest-valued automaker as its shares surged to record highs and its market capitalisation overtook that of former front-runner Toyota Motors Corp.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
July 24,2020

Melbourne, Jul 24: Home-made cloth face masks may need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets associated with Covid-19, according to a study.

Researchers, including those from the University of New South Wales in Australia, noted that viral droplets are generated by those infected with the novel coronavirus when they cough, sneeze, or speak.

As face masks have been proven to protect healthy people from inhaling infectious droplets as well as reducing the spread from those who are already infected, several types of material have been suggested for these, but based on little or no evidence of how well they work, the scientists said.

In the current study, published in the journal Thorax, the researchers compared the effectiveness of single and double-layer cloth face coverings with a surgical face mask (Bao Thach) at reducing droplet spread.

They said the single layer covering was made from a folded piece of cotton T shirt and hair ties, and the double layer covering was made using the sew method described by the US Centers for Disease Control and Prevention (CDC).

The scientists used a tailored LED lighting system and a high-speed camera to film the dispersal of airborne droplets produced by a healthy person with no respiratory infection, during speaking, coughing, and sneezing while wearing each type of mask.

Their analysis showed that the surgical face mask was the most effective at reducing airborne droplet dispersal, although even a single layer cloth face covering reduced the droplet spread from speaking.

But the study noted that a double layer covering was better than a single layer in reducing the droplet spread from coughing and sneezing.

According to the researchers, the effectiveness of cloth face masks is dependent on the number of layers of the covering, the type of material used, design, fit as well as the frequency of washing.

Based on their observations, they said a home made cloth mask with at least two layers is preferable to a single layer mask.

"Guidelines on home-made cloth masks should stipulate multiple layers," the scientists said, adding that there is a need for more research to inform safer cloth mask design.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.