Abstract

Describes two decision making strategies of the lane departure warning system for a vehicle and provides experimental results to assess the performance of each strategy. The overview of the lane departure warning system mounted on the vehicle is presented. A lateral offset (LO) based strategy and a time to lane crossing (TLC) based strategy are proposed to be used in the warning module which detects unintended lane departure so as to warn the driver. The performance criteria of the warning strategies are defined as: 1) false alarm rate, 2) alarm triggering time. The proposed strategies are incorporated in our lane departure warning system to be tested in real expressway experiments. The experimental results for the performance optimization of both strategies are discussed and compared with each other.

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