Features

India’s road safety record is the world’s worst but there are plans to tackle the problems. Patrick Smith reports from New Delhi. A speeded up video of a short section of road in the Indian capital Delhi was followed by a question. “How many infringements did you count in that 25-second clip on a typical day in Delhi,” asked Dr Rohit Baluja, a question that brought understandable silence. It equated to hundreds of millions of infringements each year, said Dr Baluja, president, Institute of Road Traffic Educ

A wide range of new models is being introduced for the asphalt equipment compaction market – Mike Woof reports. The asphalt compaction equipment market is seeing the introduction of new machines from an array of major manufacturers. Manufacturers have introduced both steel drum and rubber tyred rollers to meet customer demands in specific markets as well as globally, and have also developed innovative new compaction practices. Competition in the asphalt compaction market is increasingly tough, with many of

The concrete road paving market continues to develop - Mike Woof reports Concrete road paving technology continues to evolve, with new equipment and techniques coming to market. Although concrete road construction has been used for many years, problems with early generation technologies affected this market segment. The first concrete roads were constructed in sections, which led to problems at joints but these were addressed many years ago with the advent of slipform paving. Concrete roads constructed in t

Among the forests and lakes of Finland, one of Europe's newest motorway links is being built as a Green highway linking Europe to Russia - Adrian Greeman reports The road eastwards from Finland's capital Helsinki, along the north coast of the Gulf of Finland, has not carried heavy traffic volumes, at least until recent times. Highway seven as it is designated locally, or E18 in European nomenclature, is partly motorway but in some sections still dual carriageway or even just a single lane each way, finishin

Maintenance of roads in historic districts is a challenge for communities around the world. The sanctity of the surroundings limits the amount of re-engineering and widening that can be considered. Improvement options typically are limited to repairs. Yet repairs also have an impact. The historic areas usually attract tourists and their crucial economic contributions. If the street repairs create too much of an inconvenience, tourists are likely to avoid the area and a negative economic impact and a loss of

Rising energy costs and increased awareness of safety and environmental issues have encouraged the development of Warm Mix Asphalts (WMA), which are typically produced at temperatures of between 130°C and 145°C, compared with around 175°C for traditional Hot Mix Asphalt (HMA). WMAs are regularly used in many European countries, as well as both North and South America. The three most common ways to lower the working temperature of asphalt are: a) foaming technologies; b) wax additives; and c) chemical (surfa

Productivity and profitability mean more than how many metres per minute your cold planer mills. In today’s world, precision is every bit as important as pace. Precision eliminates costly rework. It ensures crews don’t remove excess materials, and incur the associated costs in fuel, hauling and machine life. Precision also impacts the entire life—and cost—of a project by creating the proper foundation on which all subsequent work occurs. Cat® Grade and Slope for cold planers helps deliver that precision. Am

Copenhagen, Denmark, has long been known as one of the world’s leading cities for cycling. In some areas of the city, the modal share of bikes has reached a level of as much as 50 %. And on some of the most frequently used bike paths the average daily number of cyclists is close to 30,000. As these numbers continue to rise, new ways of planning and implementing cycling infrastructure are needed. Increasingly, Danish traffic planners are turning to technology as a tool for planning cycling infrastructure. I

Designing structures and pavements to accommodate warmer weather and more extreme temperatures On October 22nd, IRF held a notable workshop on environmental protection and the impacts of climate change in Cordoba, Argentina, in conjunction with the XVI Argentine Congress of Road Administration and Traffic. The workshop addressed a topic of key concern to transportation planning and design professionals around the world. The discussion was animated by guest panellists Professor Ram M Pendyala and Gordon Rex

The rural roads near Brandýs nad Labem, in the heart of the Czech Republic, may not be as heavily travelled as their counterparts in Prague, about 25km (15.5 miles) to the southwest, but they are nevertheless crucial pipelines to the rural and agricultural areas of the country. An assessment by regional authorities indicated that these roads are in need of repair. That led to cold planing and paving work on a series of rural roads near Brandýs nad Labem. Regional authorities have two key requirements: The r

Pneumatic concrete dowel drills have one purpose – to drill holes. While their intended use is easy to recognize, operation of this equipment isn’t quite so simple. In fact, it’s a bit of a science. That’s not to say they’re difficult to operate. But there are certain best practices and processes to keep in mind for proper drill operation, whether it’s an on-grade, slab-rider or equipment-mounted model. Operators who adopt these guidelines and implement them on every job are rewarded with better performance

The emergence of Brazil as a major economic force and its need to improve infrastructure is proving a magnet for investment. Patrick Smith reports. Brazil is now the sixth biggest economy in the world according to its Finance Minister Guido Mantega. The largest country in South America with a population of 190 million and one of the BRICS, (Brazil, Russia, India, China, South Africa, Brazil’s economy grew 2.7% in 2011 and is now worth $2.5 trillion, having overtaken the UK. With big oil and gas reserves sti

Early evaluation of surfacing work on the M90 at Rosyth – the first major application of Scotland’s new TS2010 specification – has earned positive praise. Transport Scotland’s determination to obtain pavement that is durable, long lasting and safe (especially in early life) is clearly apparent on the M90 just north of the Forth Road Bridge. Here surfacing has been carried out this spring to TS2010, a tough new specification designed to ensure thin surfacing pavements that work. And the initial prognosis is

Major bridge maintenance and replacement projects across the world are extending the life of many impressive historic landmarks as Guy Woodford reports The Tamar Bridge, part of the main A38 trunk road linking Saltash in Cornwall with Plymouth in Devon, south west England, marked its 50th anniversary with a steel deck resurfacing project involving Stirling Lloyd's Eliminator bridge deck waterproofing system. Jointly owned by Plymouth City Council and Cornwall Council, the Tamar has a suspended length of 642