| | Category | EN | P19 | Linear Analysis of Times Series to Identfy Optimal Time Parameters |
| | for Lane De |
| | Abstract | The goal of this project is to determine the time parameters for the two- |
| | second rule first developed by Delphi and implemented by Ford Motor |
| | Company to control the trigger of the adaptive Lane Departure Warning |
| | System (LDW). The two-second rule states that the hypothetical driver |
| | must be in the 'pose not forward' position for two minutes and in a state of |
| | distraction for one minute inside the lane. 'Pose not forward' means that |
| | the driver is not facing forward; this is detected by a camera focusing on |
| | specific facial features, such as a nose or ears. If the time limits are met |
| | by the driver then the LDW system assumes that the driver is exiting the |
| | lane unintentionally and is triggered. However, in Ford VIRTTEX lab's study |
| | of the LDW several of the subjects were not warned about the time or |
| | were warned at the wrong time. Six of the total subjects received a |
| | delayed warning because of the two-second rule. In order to identify the |
| | optimal time parameters for the LDW system several MATLAB scripts will |
| | be coded and utilized. The first script will analyze the variables of each of |
| | the forty subjects to identify the amount of time that the subject was 'pose |
| | not forward', the amount of time that the subject was in a state of |
| | distraction and the time difference between when the LDW was triggered |
| | and when the subject actually exited the lane. The second MATLAB script |
| | will identify the 'noise' of the LDW system. 'Noise' is similar to percent error |
| | of fractional error; it represents the technological faults. While identifying |
| | the optimal time range for the LDW to be triggered might be finding a |
| | specific number, it might not be the perfect trigger rule. Therefore, this |
| | project will also entail a third script that identifies the cumulative sliding time |
| | window. The cumulative rule will combine all of the driver's 'pose not |
| | forward' time to account for technical or behavioral mistakes. While the |
| | goal of this research project is to utilize MATLAB to identify the optimal time |
| | parameters for the LDW trigger, the purpose of this project is to determine |
| | the safest and most accurate method of applying the LDW technology to |
| | everyday life. |
| | Bibliography | Ihttp://www.volpe.dot.gov/hf/roadway/saveit/docs/datafus_rep.dochttp:// |
| | www.fmcsa.dot.gov/facts-research/research-technology/report/lane- |
| | departure-warning-systems.htm |