Highways

With residential construction on the rise again, both homeowners and developers are seeking greater variety in pavement materials other than that provided by plain concrete or asphalt. To meet this demand, several Australian companies are producing patterned an4 col our ed concrete surface finishes to enhance paved areas in new...

The Warrego Highway is the principal road link between Brisbane and Toowoomba, a major provincial city on the eastern edge of the Great Dividing Range some 130 km to the west. The four-lane section of the highway extending nearly 6 km east from Toowoomba to Withcott, part of which traverses...

The Metropolitan Transit Authority of Victoria (MTA) operates a fleet of about 685 electric passenger tramcars, over a street network of some 220 km of single track in Melbourne. The MTA also operates about 290 diesel buses, over a network of about 270street-km. Together, the two systems make more than...

Over the last twenty years municipal planners have gradually accepted the need to plan and implement cycleways for commuter and recreational use. This year saw the release of the new edition of Guide /o Traffic Engineering Practice. Bicycles by AUSTROADS. This technical publication was written with the cooperation of all...

The City of Blacktown, located approximately 40 km west of Sydney, has experienced a massive expansion of industrial, commercial and residential development over the last two decades and continues to be one of the maior growth centres in the Sydney region. Luxtord Road, a major collector road with a four...

Roundabouts are being constructed to provide improved traffic facilities at a variety of intersections ranging from local collector/distributor roads to arterial roads and highways. They increase overall community amenity by reducing traffic speeds and accidents — by limiting the number of conflict points the potential for collisions is reduced and...

During the first two weeks of October, in excellent weather, a group of six engineers from four Australian States participated in the C&CAA-arranged study mission to Europe. The mission was established to study the topics of: • concrete tollway operations. • road widening/overlays. • quality systems as applied to construction...

With an eye to future rehabilitation solutions, John Hodgkinson re-visited a CRCP overlay constructed on the Hume Highway, just north of Holbrook, in 1992. A significant milestone was reached in June 2021 as the first BCSA Rapid Set Concrete slab celebrated its 10th Birthday in Australia at Sydney International Airport. Since this...

Recent field observations on several newly constructed Continuously Reinforced Concrete Pavements (CRCP) in Belgium have indicated that the crack pattern is characterized as low mean crack spacing (approximately 1.0 m after 2 years in-service) along with a high percentage of clusters of closely spaced cracks. Besides, field surveys also indicate...

Concrete is used throughout the World every day in countless diverse applications but it is critically important in terms of performance and durability to understand why the mix design and placement need to be appropriately tailored to suit each application. The inimitable Geoff Ayton will explore what it takes to...

In addition to advances in materials and construction equipment there is a continuing need to ensure adequate skills are available within paving crews. Since 2006 concrete pavement crews and their supervisors in Australia have been required to undertake a mandatory one-day course. Known in industry as the “Grey Card” course...

Maturity testing of concrete, and applications for concrete pavements will be explored by Sabrina Garber from Transtec (USA). On a recent motorway project in Sydney roller compacted concrete was adopted as a working platform for pavement construction on local government roads. The successes and lessons learnt will be explored by...