A difficult problem was reviewed by ViaStrada at the request of a road controlling authority. An urban arterial road with a 50 km/h speed limit intersected a 100 km/h rural arterial at a large (60 m diameter) roundabout with two circulating lanes of traffic. A range of options was considered.
This technical note discusses a suggested solution where the roundabout would be signalised so that pedestrians and cyclists are able to cross onto the central island and off again to provide a direct and safe crossing of the rural arterial road. The paper also highlights the tensions within the five objectives of the NZ Transportation Strategy.
2008 IPENZ Transportation Conference, New Plymouth