Abstract: A method for traffic congestion detection for a roadway facility having a plurality of segments includes receiving travel time data from at least one travel time data source for a plurality of predetermined time intervals and determining a travel time index (TTI) for each time interval based on the travel time data associated with the time interval. The method further includes determining a change in travel time index (TTI) intensity between two successive time intervals for each pair of successive time intervals in the plurality of time intervals, applying a signal processing filter to the determined change in travel time index intensity to generate a filter value for each time interval; and determining a congestion level for each time interval based on the filter value for each time interval and a predetermined set of congestion level thresholds.

Abstract: Systems and methods are described herein to automatically detect objects and other debris located in the road. The lateral movement of a vehicle is monitored to detect lane changes. When a lane change is detected, information about the lane change including geographic coordinates of the lane change are collected. The information collected from various vehicles is correlated to identify possible locations of debris and other objects in the road. The identified locations may be provided to other vehicles for use in one or more navigation or collision detection systems or provided to one or more authorities who may use the information to address the identified objects or debris.

Abstract: Systems and methods are described herein to automatically detect objects and other debris located in the road. The lateral movement of a vehicle is monitored to detect lane changes. When a lane change is detected, information about the lane change including geographic coordinates of the lane change are collected. The information collected from various vehicles is correlated to identify possible locations of debris and other objects in the road. The identified locations may be provided to other vehicles for use in one or more navigation or collision detection systems or provided to one or more authorities who may use the information to address the identified objects or debris.