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March 14, 2012

October 2011

Road users need to be wary of high accident risks - photo supplied by World Highways reader Helen Marais
March 14, 2012

IRF calls for green initiatives to benefit infrastructure

*Susanna Zammataro introduces the range of issues addressed by IRF Geneva’s very active Environment Committee. Achieving sound environmental and sustainability outcomes has long been an integral part of IRF members’ policy and practice.
Susanna Zammataro, Deputy Director IRF Geneva
March 14, 2012

Geosynthetics give extra strength to soil reinforcement

Using geosynthetics for soil reinforcement is highly effective but requires a high quality and trusted geogrid. When it comes to deciding which geogrid is best for a specific project, a number of product parameters must be taken into account. In the design of steep slopes, the most important parameter is the available long term design strength (Pdes). Recently, Colbond has significantly increased this factor for its high performance Enkagrid product, recognised with a newly updated BBA (British Board of Ag
geogrid wall
March 14, 2012

September 2011

Rural roads in developing nations can feature all kinds of hazards.
March 14, 2012

New positioning tools streamline survey operations

Trimble has launched a range of new tools which it says will deliver faster and more accurate data to surveyors. The Trimble S6 Robotic Total Station with Trimble Vision Technology enables surveyors to remotely see and measure through a live video feed from the instrument on their data controller.
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March 14, 2012

July/August 2011

Fuel is a precious commodity - image supplied by World Highways reader Yohannes Bayonakis
Photo of the Month
March 14, 2012

June 2011

Roadsigns are required to give clear directions.
March 14, 2012

Asphalt paving improves road safety

A special emulsion is being used at the largest gold mine in South America for slurry surfacing on its compacted, unpaved roads. The result is said to be greatly curtailed particulate emissions and enhanced visibility which makes roads safer and reduces regional haze.
VSS model 12B slurry machine
March 14, 2012

May 2011

High performance cycling and mowing capabilities are claimed for this newly developed system designed in the UK.
March 14, 2012

Drain protection pads provide temporary seal

UltraTech International has produced a range of transparent covered drain protection pads, which the company says will end guesswork over drain seal effectiveness. The pads enable contractors to swiftly establish if spills are entering the drain through cracks in the surface, imperfections in the grating, or other irregularities that can break the seal.
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March 14, 2012

April 2011

Many of India's pedestrian crossings have been criticised for not actually leading anywhere. this particular crossing ends against a landscaped and fenced-in traffic island. Photo courtesy of World Highways reader BK Roy.
March 14, 2012

March 2011

Signposts offer an invaluable source of information to road users and pedestrians alike.
Photo of the Month
March 14, 2012

Smart paver control solution provides optimum materials mix

VSS Macropaver reports a strong sales performance, with exports having been particularly profitable for the company, write Mike Woof. Vice president Doug Hogue said: "We're fortunate that we're dealing on a world basis to Latin America, China and Russia." Latin America, Chile, Mexico and Peru have been key markets for the firm, although the high import tariffs into Brazil have unfortunately meant that the company finds it hard to compete in this country's strong road sector against local rivals.
VSS Micropaver Equipment
March 14, 2012

Lightweight composite manhole covers

Composite rather than metal manhole covers are better for the UK road network, according to a recent technical paper by distinguished chartered engineer John Newton. In his paper Mr Newton, inventor of the composite manhole cover, claims tests have proved a new generation of innovative composite covers, developed and manufactured by Barrow-in-Furness-based Structural Science Composites (SSC), outperform ductile iron manhole covers, while also offering better value for money.
Composite manholes
March 14, 2012

January/February 2011

Wearing of seatbelts is to be encouraged in all vehicle users to help boost safety
Child in Lego Car
March 14, 2012

Temporary acoustic barrier absorbs noise

The work of Echo Barrier was highlighted at a prestigious Institute of Acoustics (IOA) sponsored awards ceremony held at the House of Commons. The company, which develops and supplies temporary acoustic barriers for use on major construction projects to reduce noise pollution, was highly commended for its Echo H1 barrier and range of products during the 2011 John Connell Awards.
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March 14, 2012

China's economic growth fuelling vehicle increase

China is at a turning point in many ways. The country's continuing economic growth is fuelling a massive increase in vehicle numbers, with no signs of slackening. This is most acute and most visible in major cities such as Beijing and Shanghai, where traffic jams are now a frequent occurrence. One recent Beijing tailback stretched nearly 100km along a major highway and was caused by roadworks at a particularly busy stretch of the road.
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March 14, 2012

Hydrocarbon resin bitumen modifier enhances adhesion

In Estonia, Novotrade Invest, which produces hydrocarbon resin HCR-105, has carried out research work on the material that can be used as a bitumen modifier. Hydrocarbon resin HCR-105 is obtained by thermal polymerisation of hydrocarbon fraction C9 [industrially it is isolated from the C9 aromatic hydrocarbon fraction during petroleum distillation].
Hydrocarbon Resin HCR-105
March 13, 2012

November/December 2010

A Caterpillar 730 ADT recently took to the air at a project in Switzerland and the 23tonne truck was carried to a site with restricted access in the Alps, using a specially adapted lifting assembly attached to the cable normally used for a cable car. However whether this big Cat lost one of its nine lives in the process remains to be seen.
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