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Yangpu Bridge barriers mulled
By Xiao Zha |
April 1, 2010, Thursday
|
Print Edition
Print Edition
THE operators of Yangpu Bridge said they are considering adding concrete barriers to separate traffic on the span after four people died in a Monday accident.
But authorities said the idea needs further study as it still remains a question whether the bridge can handle the weight of the heavy barriers.
"We do not have the final say," said an engineer, surnamed Yan, with the bridge management office.
The proposal will be subject to local traffic and police authorities, Yan said.
Yan said the bridge operator put in 150 meters of concrete barriers on the Puxi approach last week.
For each meter added to the barriers, the bridge will have to bear an extra ton of weight, Yan said. On the bridge's 1,000-meter-long main deck, that would mean adding about 1,000 tons.
"The bridge will get too heavy," said Yan, adding that the extra barrier weights might not have been considered when the bridge was designed more than a decade ago.
He said plastic barriers wouldn't be feasible as they are too light to prevent severe crashes.
On Monday, a taxi veered into the opposite lane and collided head-on with a truck on the bridge. Four people in the cab, including the driver, died.
In January, a sedan driver was killed in a crash with a bus.
Last July, a pile-up of 12 vehicles killed three people.
But authorities said the idea needs further study as it still remains a question whether the bridge can handle the weight of the heavy barriers.
"We do not have the final say," said an engineer, surnamed Yan, with the bridge management office.
The proposal will be subject to local traffic and police authorities, Yan said.
Yan said the bridge operator put in 150 meters of concrete barriers on the Puxi approach last week.
For each meter added to the barriers, the bridge will have to bear an extra ton of weight, Yan said. On the bridge's 1,000-meter-long main deck, that would mean adding about 1,000 tons.
"The bridge will get too heavy," said Yan, adding that the extra barrier weights might not have been considered when the bridge was designed more than a decade ago.
He said plastic barriers wouldn't be feasible as they are too light to prevent severe crashes.
On Monday, a taxi veered into the opposite lane and collided head-on with a truck on the bridge. Four people in the cab, including the driver, died.
In January, a sedan driver was killed in a crash with a bus.
Last July, a pile-up of 12 vehicles killed three people.
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