Transportation engineering

ViaStrada provides a range of traffic and transport engineering services, with a particular emphasis on safe and sustainable solutions. Some of our areas of expertise include: A selection of recent relevant projects is shown below:

Preliminary design stage safety audit of a proposed roundabout at the intersection of a local road and a collector road. The roundabout is to replace the existing priority controlled crossroads.

ViaStrada recognise the need for careful horizontal and vertical geometric design to make roundabouts safer for all road users and bring this expertise to safety auditing of roundabouts.

The audit was carried out in accordance with Austroads and NZTA guidelines.

ViaStrada undertakes a detail design stage safety audit of a new traffic signals for the “Noble Village” subdivision access to the southern side of Yaldhurst Road (State Highway 73).

ViaStrada has specialised traffic signals auditing skills that were utilised with this project. 

The audit was delivered promptly and was carried out in accordance with Austroads and NZTA guidelines, receiving designer acceptance and NZTA approval.

signalised scheme design

ViaStrada was engaged by Auckland Transport to undertake a scheme design stage road safety audit of a proposed new signalised intersection on a strategic arterial route in the Auckland suburb of Massey.

ViaStrada was commissioned by Christchurch International Airport Ltd to conduct a review of a proposed roundabout at the airport.

The objective of the review was to determine if the land required for the proposed roundabout was appropriate and whether the proposed design was safe and had capacity for the future.

ViaStrada was commissioned by the Tautuku Trust to assess the current access road to the Cathedral Caves.  The caves are in an isolated location off the Southern Scenic Route SH92 in Otago.  The access road is a private road that leads to the car park at the start of the cave walk. The access road is steep, winding, and narrow. The caves can be visited at low tide, which puts pressure on the access road at these times. 

The ViaStrada assessment looked at access road issues and operational measures for the Trust to consider.

ViaStrada was commissioned to undertake a series of post construction safety audits for Waitaki District Council. Three audits were carried out: two looking at urban intersection treatments in Oamaru and one looking at five rural pavement rehabilitation projects in the Waitaki District.

The Hamilton City Council commissioned ViaStrada to undertake a review of physical barriers to cycling in the Hamilton central city, as well as identification of current and potential cycle routes.

The Christchurch City Council now has a record of all the markings and signs on the Peninsula. All traffic control devices requiring a Council resolution have now gone through the correct legislative process. The signs and markings are scheduled in the RAMM database with the respective resolution. The signs were photographed and the condition noted for the maintenance team.

As part of the Westfield expansion of Riccarton Mall, the intersection of Clarence Street and Dilworth Street was converted from a give way intersection to traffic signals. ViaStrada was commissioned by Westfield to design the new layout, undertake the community consultation and prepare final design plans for construction. Finalising the layout required working closely with the Christchurch City Council, the traffic signals contractor and the client. The new intersection with traffic signals was constructed in June 2009.

ViaStrada undertook and analysed counts of cycle traffic on the two existing sections of the Little River Rail Trail - between Prebbleton (on the south-western edge of Christchurch) and Lincoln; and between Motukarara and Little River (on Banks Peninsula, halfway to Akaroa). This was done on behalf of the Christchurch City and Selwyn District councils. 

We estimated the yearly use of the Birchs Road site to be 42,700 cyclists. For the Motukarara to Little River section of the rail trail the annual use was estimated to be 10,200 cyclists.