This 2005 report published by the NZ Transport Agency and authored by D. Walton, VK Dravitzki, BS Cleland, JA Thomas and R Jackett for Opus Central Labratories reports on a four-part research program undertaken between 2002-2004 to identify hazards to cyclists from features of the road network that are designed to benefit motorists.

Such features include, for example, profiled markings for wet/night visibility and flush medians that enable easy right turns but narrow the available lane width. The perspective of the research is to recognise and understand the conflicting needs of cyclists and motorists who share a road corridor. The outcome is to facilitate more informed decision-making in design, maintenance and management of the road corridor by balancing the needs of cyclists and motorists.
The four studies were: