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Oct 21, 2011

INFRASTRUCTURES * USA

* Study, Cites More Than 18,000 Deficient Bridges.  They are  structurally deficient bridges 


(Photo: Royal Gorge Bridge,USA)

Washington,DC,USA -Transport Toppics -21 Oct 2011: -- There are more than 18,000 structurally deficient bridges located in about 100 U.S. metropolitan regions, according to a new study on deteriorating infrastructure...  The deficient bridges in the 102 metropolitan regions carry three-quarters of all the traffic in the country crossing deficient bridges, said the study, published by the group Transportation for America. The group it's a coalition of transportation advocates that includes builders, realtors, labor unions, senior citizen groups, environmentalists and local governments...  T4 America, as the group is known, culled its list of structurally deficient bridges from the National Bridge Inventory, a database maintained by the Federal Highway Administration...  The study found that one in every nine bridges in the country is rated structurally deficient by the FHWA, meaning the bridge needs “more frequent monitoring and critical, near-term maintenance, rehabilitation or replacement” ...

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Dec 20, 2007

Infrastructure Experiment * USA - Bamboo road bridge can support 16-tonne trucks

Bridges built from bamboo instead of steel could provide a cheaper, more environmentally sustainable engineering solution in China, a recent experiment suggests

CAL,USA -New Scientist, by Mason Inman -19 Dec 2007: -- ... A novel type of bridge with horizontal beams made from a bamboo composite proved strong enough to support even heavy trucks in tests. The bamboo beams are cheaper and more environmentally friendly to make than steel or concrete, yet offer comparable structural strength... Yan Xiao, who works at the University of Southern California, in Los Angeles, US, and at Hunan University in China, led the development of the bamboo beams used to make the bridge... Instead of using round, pole-like pieces of unprocessed bamboo, which have been used as building material for many thousands of years, he came up with a way of assembling timber-like beams from many smaller strips of bamboo... (Photo from University of Southern California - The novel bridge with horizontal beams made from a bamboo composite proved strong enough to support even heavy trucks)

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Mar 10, 2007

* USA - Lowering trucks weights may not help roads

Detroit,MI,USA -The Detroit Free Press, by MATT HELMS -March 4, 2007: -- Folks around here are quick to single out Michigan’s heaviest-in-the-nation truck limits for the state’s battered pavement... Lowering trucks weights may not held roads... Problem is, officials in and out of the trucking and road industries tell me there’s no conclusive evidence that lowering weights would make much of a difference. They say Michigan’s major roads are built to handle heavier loads than other states, and weather and chronic roadwork underfunding are bigger reasons behind our poor roads... I wrote recently about efforts to raise the state’s gas tax by up to 9 cents a gallon and heard from dozens of readers who said they’d grudgingly consider paying more – but only if Michigan would ban 82-ton monster big rigs...

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* Canada - Saskatchewan invests billions for transportation strategy

Regina,Sask,CAN -Truck News, by Steven Macleod -6 Mar 2007: -- Saskatchewan will invest an unprecedented $5 billion over the next 10 years in an innovative new transportation and infrastructure strategy...
Transportation investment will be focused in six key areas:
1- International Gateways and Corridors...
2- Urban Connectors...
3- Rural Economic Corridors...
4- The Northern Economic Infrastructure Strategy...
5- First Nations Access Roads...
6- Regional Shortline Railway and Airports...

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Mar 6, 2007

Top Bureaucrats Say * Canada - Opportunities for improving infrastructure best they’ve been in 40 years

Toronto,ONT,CAN -Truck News, by Lou Smyrlis -4 Mar 2007: -- The main message from the high-level bureaucrats included in a transportation policy session at the Transpo 2007 conference held this week in Toronto was that both political will and understanding are currently aligning in such a way that there are opportunities to make improvements to our transportation infrastructure “that haven’t been available in maybe 40 years.”...

* Highway plan to revitalize every corner of Manitoba
Winnipeg,Man,CAN -Truck News, by Steven Macleod -4 Mar 2007: -- An unprecedented investment of $4 billion and the province’s first-ever, multi-year plan to renew the Manitoba’s highway system was unveiled by the provincial government...

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