Businesses are concerned traffic diversions to be put in place while the Newmarket Viaduct is developed will create traffic mayhem.

There will be 36 hours of car chaos next weekend when the country's busiest highway closes to south-bound traffic.

That never-ending Chinese traffic jam.

North Shore commuters will face extra delays driving home from Auckland for three months from this afternoon.

Auckland's Southern Motorway has up to a dozen points too weak to support new, extra-heavy trucks already plying the roads.

Auckland's latest gadgets to ease motorway congestion are proving remarkably accurate - and a hit with motorists.

Legislative roadblocks hindering the efficient operation of public-private partnerships are being removed, writes Michael Weatherall.

Bill English and his infrastructure team are looking forward to a single Auckland council.

Chinese firms are eyeing local roading contracts, but some builders are voicing concern, report Anne Gibson and Fran O'Sullivan.

Case study: Denmark

Our transtasman neighbour has the jump on us when it comes to public-private partnerships, writes Graeme Hunt.

Is Fletcher Building's forward workload too heavy on Government jobs?

Fletcher Building's construction book is 84 per cent Government-led and that won't change any time soon.

As the Government steams ahead with infrastructure project plans, engineering firms are finding the need to catch up.