Publications and presentations

Ashu Kedia delivered an invited online guest lecture on the Safe System Approach to Road Safety to student members of the Institution of …

Are slip lanes inherently less safe than conventional signalised left turns? This review examines Australian and New Zealand research and finds that …

What data do we really need to improve pedestrian safety? ViaStrada's John Lieswyn and Glen Koorey joined Phil Harbutt from Pivot Space to present …

As part of ViaStrada research into minimum walking data requirements to progress pedestrian safety, this Guideline and data framework spreadsheet …

This Austroads report summarises research undertaken by ViaStrada for determining the minimum data requirements to measure and improve pedestrian …

At the 2026 Transportation Conference, John, Bronwen and Tanja led an interactive Learning Cafe session, where they introduced attendees to the DOC …

At the 2026 NZ Transportation Conference, Glen presented on some NZTA research that investigated the impacts of permanent road-space reallocation on …

The Austroads’ funded project Keeping People Safe When Walking aims to help chart a path to zero pedestrian serious trauma, by establishing a …

ViaStrada undertook research for NZTA investigating the measured network vehicle-kilometres travelled (VKT) impacts of permanent road space re …

This research shows that emerging new technologies like WiFi probes and artificial intelligence processing of video feeds can help measure levels of …

How do we gather information about our streets and paths to improve them for people of all ages and abilities? John …

Our current understanding of the impacts of mode change on safety is limited, due to the complex interactions between the various risk factors plus …

John Lieswyn was recruited by the World Bank to join an international cast of subject matter experts producing a comprehensive report on ways to …

Northland is building an urban and rural network of shared pathways for people walking, biking, and scooting. In the largest city, Whangārei, …

This study investigates Christchurch residents’ preferences for different home delivery time slots for online purchases and examines whether off …

This research evaluates traffic characteristics associated with safe pedestrian crossings and develops warrants to guide crossing provision. The …

Te Mahere o te ara tawhiti ki te Raki, the Far North Trails Plan had the goal of developing a prioritised list of future routes to extend the …

We can quantify the economic impact of investing in roads for motor vehicle drivers, why not pedestrians? This presentation describes a simple …

Understanding the perceptions of walkability in Central North Christchurch for older adultsBy developing walkable streets, Christchurch can create …

This project examines electric vehicle (EV) adoption trends in Delhi, Uttar Pradesh, Karnataka, and Gujarat and estimates how many EVs must be …

There has been a surge of interest in the “10, 15 or-20-minute city” both worldwide and in Aotearoa New Zealand. This goal, which for generality, we …