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. Author manuscript; available in PMC: 2014 May 29.
Published in final edited form as: J Exp Psychol Hum Percept Perform. 2012 Aug 27;39(1):23–36. doi: 10.1037/a0029716

Figure 1.

Figure 1

Aligned and rolling gap pair shown as both spatial and temporal arrangements from the cyclist's perspective. The spatial presentation (1a) shows vehicle positions at a snapshot in time. The temporal presentation (1b) shows the times that the rider's line of travel is obstructed by a vehicle. The interval when the gap is open is highlighted in purple. Note that the temporal presentation represents the progression of time for both lanes of traffic in a temporally aligned (left to right) coordinate system. In this idealized case, both types of gap pairs are composed of the same size near and far gaps.