The army is investigating how a box of ammunition fell off the back of one of its trucks and was run over by a car.

Long diversions remain in place for heavy vehicles travelling on State Highway One south of Kaikoura, after a major slip on Friday night.

SH1 north of Christchurch remains closed following a major slip near Kaikoura on Friday night.

Eric Thompson writes that testosterone level has a direct bearing on driving skill - it seems to make it worse.

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

As the focus turns from bridging the infrastructure deficit to building the 'nation for the future', there are gritty issues to be addressed, writes Stephen Selwood.

Freight matchmaking service is the sort of thing the internet might have been invented for.

The Green Party says Auckland's $2 billion Waterview connection won't solve the city's transport problems.

Motorists looking to register their vehicles are in for a shock from Thursday.

Selfish drivers with a "me first" attitude are the top frustration for Kiwi motorists, an AA Insurance survey finds. nzherald.co.nz readers respond.

Two cars belonging to one person have made almost 700 trips on the Northern Gateway motorway without paying the $2-a-trip toll - and the owner now faces fines of more than $26,000 if the fees are not paid.