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Precast/prestressed concrete pavement continues to evolve
During the last 40 years, precast/prestressed concrete pavement (PPCP) panels have been used in various forms, from coast to coast. Unfortunately the traveling public of 2010 has far too much time to appreciate this smooth work while sitting in bumper-to-bumper traffic. But while congestion rates have increased, forcing motorists to suffer through lane reductions necessary for service repair or replacement, new technologies and engineering techniques have continued to develop. Today, PPCP is among the advancements that allows overnight replacement of aging highway surfaces with long-lasting, highly durable concrete panels.
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Elumin8 launches range of energy efficient LED traffic signs
Elumin8 Ltd has launched its new range of energy efficient road signs. These internally lit signs use the latest LED technology and provide a clean flat lighting surface. Elumin8 has spent the last 12 months in R&D and testing and will showcase the new products at Intertraffic 2010 held in Amsterdam. The signs are already on test throughout Europe and Asia.

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Wall Art: Engineered solutions for aesthetic earth retention
Art and science truly combine in today’s retaining wall systems. Civil engineers must design increasingly taller structures that not only support slopes, buildings, or roads, but also enhance the aesthetics of the project. The retaining wall can be a work of art itself, making an architectural statement; or it may disappear into the natural elements surrounding it, whether vegetation, soil, or rock. According to manufacturers, the most significant trends influencing the use of segmental, mechanically stabilized earth (MSE), gravity, and geocellular retaining walls include new project delivery and design methods, a focus on green or sustainable design, and wall aesthetics.
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Researching the Future
To discover some of the technologies that may become mainstream tools for civil engineers within a few years, CE News invited researchers from selected organizations to complete a brief online survey about their work. The following summaries offer a glimpse of the broad range of solutions being investigated for transportation infrastructure, stormwater management, water quality, environmental protection, and other pressing problems.
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Trusting 3D roadway modeling to tackle a tricky intersection
In a recent survey conducted by Rebuilding America’s Infrastructure magazine, transportation industry respondents named 3D modeling as the factor having the biggest impact on the transportation and infrastructure industry during the next five to 10 years. Indeed, 3D modeling is already making a real difference in the quality, speed, and cost of building and rebuilding our nation’s infrastructure.
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Headlines From Around The Web

N.C. DOT to cut 400 positions (Winston-Salem Journal)
Georgia DOT commissioner resigns (Atlanta Journal-Constitution)
Georgia DOT loses another top manager (Atlanta Journal-Constitution)
New Road Signs Will Now Wait (The New York Times)
WYDOT staffer wins national post (Billings Gazette)
Schneider named acting IDOT director (The State Journal-Register)
Selection of MDOT director delayed (Hattiesburg American)




HubDOT Exclusive

In replacing the Willamette River Bridge, the Oregon Department of Transportation makes steps to ensure the structure's ecological footprint is as small as possible, leaving room for natural habitats to flourish.

  Bringing new life to the I-5 Willamette River Bridge

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