Substance Impaired Driving Project

Substance Impaired Driving Project

Substance impaired driving (SID) is when a person’s ability to drive a car is affected because they have taken a drug or medication, a combination of these, or combined them with alcohol. Road crashes caused by substance impaired driving occur much more often in New Zealand than previously thought. People are uninformed about how medication and drugs can affect their driving and the fact that it is illegal to drive while impaired in any form.

The Substance Impaired Driving Project aims to enhance understanding of substance impaired driving, demonstrate solutions and ultimately decrease the impact of substance impaired driving by reducing serious injuries and deaths on New Zealand roads.

This project is being led by NZTA in partnership with the Ministry of Transport, the Ministry of Health, Police, ACC, the Ministry of Justice and in collaboration with NZ Medical Association, the Royal New Zealand College of General Practitioners, the Pharmaceutical Society, ESR, New Zealand Drug Foundation, Safe and Sustainable Transport Association, AA, Insurance Council of NZ and Students Against Dangerous Driving. RTF is fully supportive of the project.


A key focus of the SID project is supporting change in the road freight transport sector and involves confidential surveys of road transport organisations and drivers to better understand the sector’s needs. Each participating organisation will receive a report that profiles the current level of awareness of SID within their organisation. This information is then collated and used to develop driver information resources specific to the sector’s needs.

RTF strongly encourages transport companies, their drivers and staff to undertake the online surveys below. Please contact Anne Dowden (Principal, REWA – Researcher contracted to NZTA), if you have any questions about this survey or your participation (

Survey for Drivers and Staff

Survey for Organisations and Companies