A method for determining a risk boundary in response to the plurality of indications of hard braking events wherein the risk boundary is indicative of a plurality of speed flow pairs at which a risk of a hard braking event is below a threshold value, determining, at a road segment level, a set of speed flow pairs of average speed and vehicle count and a plurality of indications of hard braking events , determining a host vehicle speed, and performing at least one of reducing the host vehicle speed and increasing a host vehicle following distance in response to the host vehicle speed exceeding the risk boundary for the vehicle flow density.

A vehicle window plate has a maximum value of a variation of a curvature in a vertical direction being ±7.6E-6 mm.sup.−2 or less at least within a HUD display area. The curvature preferably increases monotonically from a lower side to an upper side at least within the HUD display area.

An aspect of the disclosure provides an apparatus and a method for assisting driving capable of calculating a speed limit of a vehicle using curvature information of a road and accurately recognizing a traffic sign through this. The apparatus for assisting driving of a host vehicle includes a front sensor mounted to the host vehicle and having a field of view in front of the host vehicle, the front sensor configured to obtain front image data; and a controller including a processor configured to process the front image data. The controller may be configured to detect a speed displayed on a sign based on the front image data, to calculate a limit speed of the host vehicle on a driving road based on the front image data, and to display a sign speed smaller than the limit speed on a display of the host vehicle.

Provided is a vehicle travel control apparatus including: a vehicle controller configured to execute constant speed travel control for causing a vehicle to travel at a target speed, and configured to execute a target speed increasing process of increasing the target speed by a predetermined speed increase amount; a display device configured to display a setting screen which allows a driver to change at least the speed increase amount; and a memory configured to store the speed increase amount changed on the setting screen, the vehicle controller being further configured to execute the target speed increasing process in accordance with the speed increase amount which has been stored in the memory.

To reduce the effects of traffic jams, a traffic reduction system identifies road segments having more a threshold amount of traffic. The traffic reduction system also receives an indication of a current location of a client device operating in a vehicle and compares the current location to the locations of the identified road segments to determine whether the vehicle is on or approaching the road segment. If the vehicle is on or approaching the road segment, the traffic reduction system determines a target speed for the vehicle to maintain an equal distance between the vehicle and the vehicle in front of the vehicle and the vehicle and the vehicle behind the vehicle. The traffic reduction system then provides the target speed to the client device for display on a user interface. By maintaining equal distances between vehicles in front of and behind each other, the amount of traffic dissipates.

The disclosure provides a display device, a display control method, and a non-transitory computer-readable recording medium. The display device of an embodiment is mounted on a vehicle and includes: a display part; and a display controller displaying a first image showing a speed range controllable by a driving controller that controls a speed of the vehicle to a constant speed, a second image showing a target vehicle speed of the vehicle, and a third image showing the speed of the vehicle on the display part. The display controller displays the second image in association with an upper limit or a lower limit of the first image on the display part when the speed of the vehicle deviates from the speed range.

(Object) To provide an image control technology that enables an occupant of a moving body to recognize the difference between the present traveling speed and other speed related information, with good visibility. (Means of Achieving the object) An image control apparatus installed in a movable body, includes a controller configured to generate data of a display image in which a present moving speed of the movable body is indicated together with other speed related information, and change a display mode related to a difference between the present moving speed and a speed indicated by the other speed related information, upon detecting that a predetermined condition is satisfied.

An automatic driving system includes: an information acquiring device configured to acquire driving environment information indicating a driving environment of the vehicle; a running control device configured to execute lane change control from a first lane to a second lane during automatic driving of the vehicle based on the driving environment information; and a display device configured to display an upper limit value of a running speed of the vehicle which is set by a driver of the vehicle during automatic driving. The display device is configured to display a deviation value which is calculated based on a target value of the running speed and the upper limit value along with the upper limit value during a speed-deviation running in which the running speed is higher than the upper limit value.

A method of controlling a driving speed, which controls a working vehicle at a remote location to be driven on a route at an optical driving speed, is provided. The method includes: calculating terrain data based on a terrain scan image of the route acquired by a terrain scanner of the working vehicle; calculating the optimal driving speed according to the calculated terrain data; generating a driving control signal controlling the working vehicle to be driven on the route at the calculated optimal driving speed; calculating a vibration value of the working vehicle being driven on the route at the calculated optimal driving speed based on a sensing value acquired by a sensor of the working vehicle; adjusting the calculated optimal driving speed according to the calculated vibration value; and regenerating a driving control signal controlling the working vehicle to be driven on the route at the adjusted optimal driving speed.

Provided is a vehicle travel control apparatus including: a vehicle controller configured to execute constant speed travel control for causing a vehicle to travel at a target speed, and configured to execute a target speed increasing process of increasing the target speed by a predetermined speed increase amount; a display device configured to display a setting screen which allows a driver to change at least the speed increase amount; and a memory configured to store the speed increase amount changed on the setting screen, the vehicle controller being further configured to execute the target speed increasing process in accordance with the speed increase amount which has been stored in the memory.