Abstract
Navigation systems may encounter routing anomalies when one side of a divided highway is closed, for example for construction, and traffic is temporarily rerouted into a two-way flow on the remaining side. In such situations, detecting the temporary traffic pattern can allow a navigation system to avoid providing erroneous instructions, such as "make a U-turn" or undesirable detours. A disclosed method relates to using aggregated geospatial data, such as Global Positioning System (GPS) data, and traffic flow data to detect these temporary traffic patterns. A system can identify anomalies such as a threshold number of vehicles traveling on the "wrong" side of a highway, a high frequency of "U-turn" instructions issued at high speeds, and recommended detours that are ignored by a general flow of traffic. This detection can allow the navigation system to adjust its routing logic, which can reduce incorrect instructions and provide adjusted guidance through certain construction zones.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Klein, Daniel, "Techniques for Detecting Contraflow on Divided Roadways and Adjusting Vehicle Routes", Technical Disclosure Commons, (July 14, 2025)
https://www.tdcommons.org/dpubs_series/8351