Patent ID: 7733243

Claim:
A device, for moving vehicles, for signaling lateral maneuver margins comprising: means for selecting a maneuvering zone on the surface of the Earth, means for taking into account, in the selected maneuvering zone, a first type of risk region comprising regions considered to be uncrossable, separation threshold generation means for generating at least one horizontal separation threshold to be observed relative to the first type of risk region to claim a complete freedom of lateral maneuver, said separation threshold generation means taking into account, in the estimation of a separation threshold for a contour point of a region of the first type, the bearing angle of the contour point concerned seen from the moving vehicle, and means of determining, in the selected maneuvering zone, a second type of risk region made up of regions where the moving vehicle has a restricted lateral maneuvering freedom, said second type of risk region surrounding the first type of risk region over widths at least equal to the separation threshold established by the separation threshold generation means wherein the separation threshold generation means take into account, in the estimation of a separation threshold for a contour point of a region of the first type, the sine of the bearing angle of the contour point concerned seen from the moving vehicle.