Ecological interface design, the proximity compatibility principle, and automation reliability in road traffic management

Research output: Contribution to journalArticlepeer-review



In this paper, two user interfaces (UIs) are compared for supporting decision making in a road traffic management activity. Both UIs provide the information needed to make critical decisions related to traffic management and are designed according to ecological interface design (EID) concepts. One user interface design also incorporates concepts from the proximity compatibility principle (PCP). In addition to comparing the two UI designs, this paper considers the impact of the reliability of automation on user decision time and accuracy. It is shown that the UI designed with a combined of EID and PCP leads to significantly faster total task time, due to faster performance on the information gathering phase of the task. Contrary to expectations, time to gather information is not affected by automation reliability. Participants adapted their decisions according to automation reliability, even without explicit feedback to indicate reliability. Implications for UI design and decision making are discussed.


Original languageEnglish
Pages (from-to)241-249
Number of pages9
JournalIEEE Transactions on Human-Machine Systems
Issue number3
Early online date27 Feb 2019
Publication statusPublished - 1 Jun 2019


  • Automation reliability, decision support, ecological interface design (EID), road traffic management