Driving simulator testing for determining the functional impact of peripheral optical errors
A method of quantifying the effect of peripheral optical errors on driving includes displaying, on a central portion of a display, a visual representation of a vehicle on a dynamic roadway; intermittently displaying a curve in the dynamic roadway; intermittently displaying, on a peripheral portion of the display, a target object; receiving a signal in response to a participant viewing the target object; determining a reaction time and determining target detection accuracy. Another method includes displaying a participant vehicle and a lead vehicle in front of the participant vehicle on a roadway; signaling an alert when the participant vehicle is outside of a distance range to the lead vehicle; intermittently displaying, on a peripheral portion of the display, a target object; receiving a signal in response to a participant detecting the target; and quantifying the effect of the peripheral optical errors based on reaction time and target detection accuracy.
1 . A method of quantifying an effect of peripheral optical errors on driving, the method comprising:
displaying, on a central portion of at least one display of a driving simulator, a visual representation of a vehicle on a dynamic roadway;
intermittently displaying, on the central portion of the at least one display, a curve of a plurality of curves in the dynamic roadway and at least one character at each curve of the plurality of curves and further comprising displaying, on the central portion, a numerical countdown at each curve of the plurality of curves prior to the displaying of the at least one character;
intermittently displaying, on a peripheral portion of the at least one display of the driving simulator, a target object of a plurality of target objects, wherein the target object comprises moving the target object laterally toward the central portion of the at least one display;
receiving, from an indicator in the driving simulator, a signal in response to a participant viewing the target object in the peripheral portion of the at least one display;
determining, by a processor of the driving simulator, a reaction time between the displaying of the target object and the receiving of the signal;
determining, by the processor of the driving simulator, target detection accuracy as a ratio of a number of target objects correctly detected by the participant to a total number of the plurality of target objects displayed; and
quantifying the effect of the peripheral optical errors on driving based on the reaction time and the target detection accuracy.
2 . The method of claim 1 , further comprising obtaining a participant's identification of the at least one character.
3 . The method of claim 2 , further comprising discarding the reaction time in response to the participant not accurately identifying the at least one character.
4 . The method of claim 1 , further comprising disregarding the reaction time in response to the vehicle not remaining in a lane of the dynamic roadway during the curve in the dynamic roadway.
5 . The method of claim 1 , wherein the intermittently displaying the target object comprises moving the target object laterally toward the central portion of the at least one display.
6 . The method of claim 1 , wherein the target object is a visual representation of a pedestrian.
7 . The method of claim 1 , wherein the target object is a visual representation of a cyclist.
8 . A method of quantifying an effect of peripheral optical errors on driving, the method comprising:
displaying, on central portion of at least one display of a driving simulator, a participant vehicle and a lead vehicle in front of the participant vehicle on a roadway;
signaling an alert, with the driving simulator, when the participant vehicle is outside of a distance range to the lead vehicle;
intermittently displaying, on a peripheral portion of the at least one display of the driving simulator, a target object of a plurality of target objects, wherein the intermittently displaying the target object comprises varying a position of the target object between a plurality of discrete peripheral locations, wherein the plurality of discrete peripheral locations are selected from the group consisting of 20 ° left of the participant's visual axis; 30° left of the participant's visual axis, 40° left of the participant's visual axis, 20° right of the participant's visual axis; 30° right of the participant's visual axis, and 40° right of the participant's visual axis:
receiving, from an indicator in the driving simulator, a signal in response to a participant detecting a target in the peripheral portion of the display;
determining, by a processor of the driving simulator, a reaction time between the displaying of the target object and the receiving of the signal;
determining, by the processor of the driving simulator, target detection accuracy as a ratio of a number of target objects correctly detected by the participant to a total number of the plurality of target objects displayed; and
quantifying the effect of the peripheral optical errors on driving based on the reaction time and the target detection accuracy.
9 . The method of claim 8 , wherein the intermittently displaying the target object comprises varying the target object between a first visual representation of the target object and a second visual representation of the target.
10 . The method of claim 9 , wherein the first visual representation is a cyclist and the second visual representation is a pedestrian.
11 . The method of claim 8 , wherein the alert comprises a light having a first color on an instrument panel of the participant vehicle in response to the participant vehicle being too far from the lead vehicle.
12 . The method of claim 8 , further comprising intermittently changing a speed of the lead vehicle.