Development and Demonstration of an In-Vehicle Lane Departure Warning System Using Standard GPS Technology

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Development and Demonstration of an In-Vehicle Lane Departure Warning System Using Standard GPS Technology

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2021-06

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Minnesota Department of Transportation

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Report

Abstract

A lane departure warning system (LDWS) has significant potential to reduce crashes on roads. Most existing commercial LDWSs use some kind of image processing techniques with or without Global Positioning System (GPS) technology and/or high-resolution digital maps to detect unintentional lane departures. However, the performance of such systems is compromised in unfavorable weather or road conditions, e.g., fog, snow, or irregular road markings. Previously, we proposed and developed an LDWS using a standard GPS receiver without any high-resolution digital maps. The previously developed LDWS relies on a road reference heading (RRH) of a given road extracted from an open-source, low-resolution mapping database to detect an unintentional lane departure. This method can detect true lane departures accurately but occasionally gives false alarms, i.e., it can issue lane departure warnings even when a vehicle is within its lane. The false alarms occur due to the inaccuracy of how the RRH originated from an inherent lateral error in open-source, low-resolution maps. To overcome this problem, we proposed and developed a novel algorithm to generate an accurate RRH for a given road using a vehicle's past trajectories on that road. The newly developed algorithm that generates an accurate RRH for any given road has been integrated with the previously developed LDWS and extensively evaluated in the field for detection of unintentional lane departures. The field test results showed that the newly developed RRH Generation algorithm significantly improved the performance of the previously developed LDWS by accurately detecting all true lane departures while practically reducing the frequency of false alarms to zero.

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Chowdhury, Shahnewaz; Hossain, Md Touhid; Hayee, M. I.. (2021). Development and Demonstration of an In-Vehicle Lane Departure Warning System Using Standard GPS Technology. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/223237.

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