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Research Report 547 Fatigue design criteria for road bridges in New Zealand

Published: | Category: Activity management , Research programme , Research & reports | Audience: General

Road bridges are subjected to millions of cycles of heavy vehicle loading over their design lives, and the introduction of higher vehicle mass limits on New Zealand roads will significantly increase the rates of fatigue damage in bridge superstructures. The NZ Transport Agency's Bridge manual has relied on British and Australian standards for fatigue design criteria, and the aim of this project was to provide the basis for amended fatigue loadings based on New Zealand heavy vehicle characteristics, with allowances for forecast long-term growth in volumes and vehicle masses. The base fatigue loading was derived from analyses of effects on bridge spans of heavy vehicles recorded at weigh-in-motion sites between 2007 and 2011. The base fatigue loading was then adjusted for increases in legal vehicle masses permitted under a 2010 Land Transport Rule amendment (introducing HPMV – high productivity motor vehicles).

Research Report 544 New Zealanders attitudes towards drug-driving and suggested countermeasures

Published: | Category: Safety, security and public health , Research programme , Research & reports | Audience: General

This study conducted in New Zealand in 2012 investigated the attitudes, prevalence, habits and self-reported risks associated with drug-driving, along with possible countermeasures. Telephone and internet surveys were used for a general population sample. Face-to-face interviews, mainly in prisons, surveyed habitual users of four main drug types: alcohol and other drugs, cannabis, methamphetamine and benzodiazepine. Alcohol was the main substance used before driving, followed by alcohol and cannabis together and cannabis alone. Nearly half the general population respondents had driven after taking drugs or alcohol and a sizable proportion after taking drugs other than alcohol. Many respondents in the face-to-face group said they took risks when driving. Only a third had a full licence despite driving for more than 10 years. The majority had been involved in a crash, more than half being at fault.

Research Report 675 The relationship between transport and mental health in Aotearoa New Zealand

Published: | Category: Healthy and safe people , Research programme , Research & reports

Little is known about the effects of transport on mental health in Aotearoa, and there is a need to collect better information about the experiences and needs of diverse transport users and to develop a better local understanding of these interrelationships. This literature review provides some initial clues about what role the transport systems could be playing in contributing to an increase in mental distress and mental illness in our communities. Keywords: transport, mental health, cities, quality of life, tāngata whaiora

Research Note 004 Evaluating the greenhouse gas emission reduction benefits from land transport mode shift programmes and projects

Published: | Category: Environmental sustainability , Research programme , Research & reports | Audience: General

This research note identifies a variety of land transport mode shift programmes that have demonstrated reductions in greenhouse gas emissions (GHG), primarily through changes in vehicle kilometres travelled (VKT). Many interrelated factors influence GHG emissions including the level of active mode or public transport infrastructure, land use planning, government policies, parking management, public transport pricing, and urban logistics. New Zealand can learn from these international programmes in terms of policy, implementation and measurement. The most immediate applications include mode-shift plans for New Zealand cities, environmental impact modelling, and developing emission reduction plans. Keywords: greenhouse gas, emissions, transport, vehicle kilometres travelled, measurement, mode shift

Research Report 676 Latent demand for walking and cycling

Published: | Category: Inclusive access , Research programme , Research & reports

This research was undertaken to help inform network planning for walking or cycling which is commonly undertaken with limited evidence or unreliable data. The research produced a stocktake and assessment of methodologies for estimating latent demand for walking and cycling and a ‘decision tree’ that can be used to identify the most appropriate modelling approach, or approaches. Keywords: behaviour, cycling, latent demand, methods, model, walking

Research Report 674 Mode shift to micromobility

Published: | Category: Inclusive access , Research programme , Research & reports | Audience: General

The performance of the transport network can be improved by anticipating the impacts of new micro-mobility technologies and how the introduction of new modes may be managed to optimise benefits.  

In this research transport modelling, based on several assumptions about micro-mobility, suggested higher usage of shared paths and separated cycle facilities than for forecasts of push-bikes alone. The growth in availability and ownership of micro-mobility may also lead to increase in public transport patronage as a result of first mile/last mile micro-mobility use.  

Keywords: bike, e-scooter, first/last mile, micromobility, mode share, mode shift, shared mobility, sustainable transportation

Research Report 671 Developing a method for quantifying transport interdependencies

Published: | Category: Economic prosperity , Research programme , Research & reports | Audience: General

This study was carried out to get a better understanding of the interdependencies between transport and other infrastructure so that a more resilient transport network can be achieved. A method of assessing interdependencies was developed to improve decision making.  

Keywords: criticality, dependencies, infrastructure, interdependencies, lifelines, risk, resilience, transport

Research Note 002 COVID-19 transport behaviour change

Published: | Category: Inclusive access , Research programme , COVID-19 , Research & reports | Audience: General

This research gathered information from a global search to help identify how changes in behaviour resulting from COVID-19 and the response to it have impacted transport demand, and how these changed behaviours can be mitigated or maintained as desired. First published July 2020
Update 1 added August 2020
Update 2 added October 2020
Keywords: active transport, behaviour change, COVID-19, pandemic, public transport, recovery, remote working

Research Report 670 Better measurement of the direct and indirect costs and benefits of resilience

Published: | Category: Resilience and security , Research programme , Research & reports | Audience: General

This research was undertaken as currently the techniques and methodologies in the Economic Evaluation Manual relating to valuing resilience in transport appraisal are under-developed. The study describes the different techniques and methods that can be used to assess resilience in transport schemes and projects. The study will help to better assess resilience in transport schemes and projects and improve decision making. Keywords: cost–benefit analysis, hazard, resilience, risk, uncertainty

Research Report 669 Transport impacts on wellbeing and liveability

Published: | Category: Healthy and safe people , Research programme , Research & reports | Audience: General

This research set out to show how the transport sector contributes to better living conditions for all New Zealand citizens through investment in related capital. Maximum wellbeing benefits will be achieved by ensuring that everyone has access to high quality, low-carbon, transport systems that promote health and social connection and generate high levels of travel satisfaction. The built environment, especially urban density, has a significant impact on the viability of active and public transport systems. Keywords: transport, wellbeing, liveability, equity, New Zealand