NZ Transport Agency research report 607 This project aimed to assist the development of understandable, cost-effective static signage to warn drivers of the potential for lower skid resistance in areas renowned for periodic slippery conditions. The research began with a literature review in which the features influencing road signage effectiveness, in terms of both conspicuity and comprehension, were identified. Based on these findings, alternative signage designs were developed and investigated in relation to the current slippery road surface (SRS) signage through a public focus group followed by an expert focus group.
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