Published: June 2024 | Category: Healthy and safe people , Research programme , Research & reports | Audience: General
The objective of ISA is to keep vehicle speeds within appropriate limits in the interests of safety, including reducing deaths and serious injuries by 40% by 2030 (from a 2018 baseline). This research builds on a 2013 NZ Transport Agency Waka Kotahi report on deployment of advisory ISA – a system where the speed limit on a road is displayed within the vehicle and/or verbally articulated to remind the driver of changes in the speed limit.
The research identified that the provision of ISA in the New Zealand light vehicle fleet is increasingly driven by overseas mandates. In a New Zealand context, the provision of ISA has a positive benefit-cost ratio (around 1.7) and the potential to save a total of 5,298 deaths and serious injuries over the next 40 years from 2023 to 2063. There seems to be no compelling argument to mandate ISA once 75% of new vehicles entering the fleet are fitted with ISA, but benefits may accrue from mandating earlier.
Keywords:
crash, intelligent speed adaptation, ISA, safety, speed
Authors:
F. Tate, WSP, Wellington Te Whanganui-a-Tara
B. Frith, WSP, Lower Hutt Te Awa Kairangi ki Tai
F. Thomas, WSP, Lower Hutt Te Awa Kairangi ki Tai
M. Newsome, WSP, Auckland Tamaki Makaurau
L. Malcolm, WSP, Lower Hutt Te Awa Kairangi ki Tai
