In the United States, rear-end collisions represent 38% of all car crashes on public roads (NationalHighwayTrafficSafetyAdministration, 2014). Two major causes for car accidents are drivers not paying attention to the traffic ahead and failing to maintain a safe distance from the car that’s ahead (J. DingusT.A., S.K.,Horowitz,A.D.,&Knipling,R., 1998). Therefore, a device that can alert drivers whenever they are not paying attention to the traffic and helping them maintain proper distance from the car ahead could be an important safety tool.
Collision Avoidance Technology (CAT) systems are sensory based devices that were designed to prevent any potential dangers during driving. Some of the recent CAT systems have automated assisted braking …show more content…
Radar-based and laser-based CAT devices use either the radar or the laser to detect the objects in front. Radar-based and Laser-based are the most commonly used CAT devices since they have a high range and can detect vehicles that are farther compared to camera-based CAT devices. They will usually have a monitor to give the visual warning. If there is a vehicle in front, the monitor will let the driver know by showing a Forward Collision Warning, usually by displaying a car symbol on the monitor. However, it can vary and depends on the type of CAT device that is being used. If the driver changes lanes without an indicator, the monitor will show a Lane Departure Warning usually by displaying which lane the vehicle goes off-route. There is another type of CAT device similar to the laser-based CAT device. It is called Lidar, which stands for Light Detecting and Ranging. The lidar-based CAT device is not that expensive and is easier to package. However, the main disadvantage with lidar-based CAT devices is that they perform poorly in snow and rain. The light beams are narrower than the rain droplets and snowflakes, which make the signal-to-noise ratio go lower during bad weather. Another big problem with lidar-based CAT devices is that accumulations of mud, dust, or snow on the car could block lidar
Collision Avoidance Technology (CAT) systems are sensory based devices that were designed to prevent any potential dangers during driving. Some of the recent CAT systems have automated assisted braking …show more content…
Radar-based and laser-based CAT devices use either the radar or the laser to detect the objects in front. Radar-based and Laser-based are the most commonly used CAT devices since they have a high range and can detect vehicles that are farther compared to camera-based CAT devices. They will usually have a monitor to give the visual warning. If there is a vehicle in front, the monitor will let the driver know by showing a Forward Collision Warning, usually by displaying a car symbol on the monitor. However, it can vary and depends on the type of CAT device that is being used. If the driver changes lanes without an indicator, the monitor will show a Lane Departure Warning usually by displaying which lane the vehicle goes off-route. There is another type of CAT device similar to the laser-based CAT device. It is called Lidar, which stands for Light Detecting and Ranging. The lidar-based CAT device is not that expensive and is easier to package. However, the main disadvantage with lidar-based CAT devices is that they perform poorly in snow and rain. The light beams are narrower than the rain droplets and snowflakes, which make the signal-to-noise ratio go lower during bad weather. Another big problem with lidar-based CAT devices is that accumulations of mud, dust, or snow on the car could block lidar