Does road-space reallocation affect network VKT?

Road-space reallocation (RSR) is the re-purposing of existing road space from general traffic to active or public transport modes; this could affect road corridor elements such as traffic lanes, parking lanes, cycle lanes, bus lanes, and footpaths. Recent research for NZTA by ViaStrada investigated the impacts of permanent RSR on measured network vehicle-kilometres travelled (VKTs), and associated common factors observed.

The work involved a systematic review of relevant local and international case studies and other literature, identification of factors required for successful and sustained implementation of network VKT reduction from RSR, assessment of the impact of RSR on the NZ Transport Outcomes Framework components, and determination of recommended best practice.

A paper was prepared that summarises the tasks undertaken, the resulting findings, and recommendations for best practice going forward. At the 2026 Transportation Conference, Glen Koorey also delivered a presentation on the work.

This paper was awarded Highly Commended in the Best Research Paper category!