Adding a Lane-Line Detector to a Driving Stack
Question: A vehicle-control system can make route decisions without an explicit lane-line signal. Once you realize that a capable human driver depends on lane-line positions, what change should be made to the system design, and what are the two main advantages of making that change?
Sample answer: The design should be updated by inserting a separate lane-line detection step into the pipeline. This improves the system in two important ways: it sends the missing lane-position information to the component that chooses the vehicle’s path, and it keeps any one part of the system from having to handle too many responsibilities at once.
Key points:
- Insert a dedicated lane-line detection stage.
- Provide the downstream planner with lane-position data that was previously absent.
- Avoid overloading any one component with too many duties.
Rubric: To receive full credit, the response must identify that a dedicated lane-line detector is added, and it must explain both benefits: supplying the path-selection module with the missing lane-location information and preventing any single module from becoming too difficult to design or train.
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