| Article ID: | iaor1989605 |
| Country: | United States |
| Volume: | 23A |
| Issue: | 4 |
| Start Page Number: | 301 |
| End Page Number: | 315 |
| Publication Date: | Jul 1989 |
| Journal: | Transportation Research. Part A, Policy and Practice |
| Authors: | Dingus Thomas A., Antin Jonathan F., Hulse Melissa C., Wierwille Walter W. |
The objective of this research was to assess the driver visual attentional demand requirements of an operational in-car navigation system. Thirty-two driver subjects ranging in age from 18 to 73 drove a specially instrumented vehicle on various types of public roadways with varying traffic conditions. Drivers performed both specific navigation system tasks and conventional tasks using dashboard instrumentation. Comparisons were then made between the two types of tasks. Results show that the demand of most of the navigation tasks was comparable to that of one or more conventional tasks. Modifying the remaining navigation tasks to make information more readily available would reduce their demand.