Features

Contractors face an array of sophisticated paving technologies, Mike Woof reports. Asphalt paving technology continues to advance as manufacturers develop more efficient and reliable equipment. Paving techniques are also improving, while new polymer modified bitumen materials and recycling methodologies further increase the range of road surfacing options available to the client and contractor.

While the use of GPS is now commonplace in industry there are locations that do not get a reliable signal throughout the working day. The location, geographical layout and depth of a quarry can cause 'canyoning', where GPS signals are not dependable.Poor signals make GPS-based machine tracking technology unreliable but a Canadian firm has an RFID-based system it believes could be the answer for such sites. This cost effective QuarryTag system has been adapted from a product that has been widely used by the

Work on an award-winning US bridge was completed with savings and benefits to motorists through the help of an innovative barrier. The bridge replacement of US 31 over I-465 and Lick Creek in southern Indianapolis, state capital of Indiana, won the 2011 Honor Award from the American Council of Engineering Companies of Indiana. Stephen J. Christian & Associates of Indianapolis completed the design in less than nine months to allow Indiana Department of Transportation (INDOT) to take advantage of the favourab

Tony Marshall, Director at Arup, looks at ways in which the company encourages sustainable mobility. From policy and systems development through to the design and execution of major infrastructure projects, he reviews Arup's global project experiences and research programmes

Italian company Fracasso says it now offers a barrier system developed around a modular design concept to meet an array of needs. Called 4safe, the system is said to combine high safety standards along with versatility in use. The system is said to be easy to assemble and uses common components that can be assembled in different ways to meet varying containment requirements. The 3n beam is the key to the range and has been proven in TB11 impact testing. Where required the system can be assembled to H4 stand