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Type: Report
Title: Intelligent Speed Adaptation (ISA): benefit analysis using EDR data from real world crashes
Author: Doecke, S.
Raftery, S.
Elsegood, M.
Mackenzie, J.
Publisher: Centre for Automotive Safety Research
Publisher Place: Adelaide, Australia
Issue Date: 2021
Series/Report no.: CASR research reports; 176
ISBN: 9781925971095
ISSN: 1449-2237
Assignee: Victorian Transport Accident Commission
Statement of
SD Doecke, SJ Raftery, ME Elsegood, JRR Mackenzie
Abstract: Intelligent Speed Adaptation (ISA), sometimes also referred to as Intelligent Speed Assist, is a technology that is designed to reduce the amount of time vehicles are driven above the speed limit and reduce the degree to which the speed limit is exceeded. ISA has three forms; limiting, supportive and advisory ISA. Previous studies have calculated a reduction in crashes by focussing on changes in speed profiles and the influence of travel speed on risk of injury. The aim of this study was to determine how ISA would directly affect the severity of a crash using information from event data recorder (EDRs). This study also included a literature review focused on previous ISA trials that examined factors that influence compliance with advisory and supportive ISA. It was found that ISA can result in substantial reductions in impact speed in a crash, and if all vehicles were fitted with ISA fatal and serious injuries would be reduced by 17.6% with limiting ISA, 8.1 to 12.3% with supportive ISA, and 5.1 to 9% with advisory ISA.
Keywords: Intelligent Speed Adaptation (ISA); Speeding; Injury Severity
Rights: © The University of Adelaide 2021
Published version:
Appears in Collections:Aurora harvest 8
Centre for Automotive Safety Research reports

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