The cobia (Rachycentron canadum) is a species of perciform marine fish, the only representative of the genus Rachycentron and the family Rachycentridae. Other common names include black kingfish, black salmon, ling, lemonfish, crabeater, prodigal son and black bonito.
Volvo's pedestrian and cyclist detection system, which debuted in 2013, uses a radar unit integrated into the car's grille, as well as a digital camera embedded in the interior rear-view mirror, to monitor a field of view several yards in front of the car.
Pedestrian signal timing. Pedestrian signal timing design deals with the length of the WALK and change intervals. The WALK interval is typically short (around 4 to 7 seconds). The change interval is designed to be long enough for a pedestrian to cross the street. This is typically calculated assuming a walking speed of 3.5 to 4 feet per second.