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Abstract:
In a laboratory experiment, visual thresholds were determined for change in heading angle and change in lateral position during simulated straight road driving. These thresholds differ for different delineations, forward speeds and exposure durations. The thresholds as found are low enough to be compatible with the precision with which a driver actually keeps course on a straight road. Therefore, they are likely candidates as visual cues for course control by a driver. Some implications for future research are discussed.