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Under certain conditions, if the PCAM systems determine that the possibility of a frontal crash with a pedestrian or bicyclist is high, it prompts the driver to take evasive action and brake by using an audio and visual alert. If the driver notices the hazard and brakes, the system may use some sort of brake assist to provide additional braking ...
The sequence of events in a car-pedestrian crash. Many pedestrian crashes involve a forward moving car (as opposed to buses and other vehicles with a vertical hood/bonnet). In such a crash, a standing or walking pedestrian is struck and accelerated to the speed of the car and then continues forward as the car brakes to a halt.
Pedestrian detection Pedestrian detection. Pedestrian detection is an essential and significant task in any intelligent video surveillance system, as it provides the fundamental information for semantic understanding of the video footages. It has an obvious extension to automotive applications due to the potential for improving safety systems.
Automakers have been adding pedestrian crash avoidance technology to the safety packages offered in many vehicles, but as of now, these systems are not mandatory in all vehicles.
Collision avoidance by braking is appropriate at low vehicle speeds (e.g. below 50 km/h (31 mph)), while collision avoidance by steering may be more appropriate at higher vehicle speeds if lanes are clear. [3] Cars with collision avoidance may also be equipped with adaptive cruise control, using the same forward-looking sensors.
In pedestrian areas, speed bumps are often placed to slow cars, preventing them from going too fast near pedestrians. Poor road surfaces can lead to safety problems. If too much asphalt or bituminous binder is used in asphalt concrete, the binder can 'bleed' or flush' to the surface, leaving a very smooth surface that provides little traction ...
Steps used in collision avoidance. A blind-spot monitoring system searches the spaces near the car with radars or cameras to detect any cars that may be approaching or hiding in blind zones. The relevant side-view mirror will display an illuminated symbol when a vehicle of that type is recognized.
The terms "active" and "passive" are simple but important terms in the world of automotive safety. "Active safety" is used to refer to technology assisting in the prevention of a crash and "passive safety" to components of the vehicle (primarily airbags, seatbelts and the physical structure of the vehicle) that help to protect occupants during a crash.