TY - JOUR EP - 673 SP - 661 UR - http://www.mdpi.com/journal/sensors JF - Sensors ID - upm13901 TI - Ultrasonic sensors in urban traffic driving-aid systems IS - 1 VL - 11 PB - MDPI N2 - Currently, vehicles are often equipped with active safety systems to reduce the risk of accidents, most of which occur in urban environments. The most prominent include Antilock Braking Systems (ABS), Traction Control and Stability Control. All these systems use different kinds of sensors to constantly monitor the conditions of the vehicle, and act in an emergency. In this paper the use of ultrasonic sensors in active safety systems for urban traffic is proposed, and the advantages and disadvantages when compared to other sensors are discussed. Adaptive Cruise Control (ACC) for urban traffic based on ultrasounds is presented as an application example. The proposed system has been implemented in a fully-automated prototype vehicle and has been tested under real traffic conditions. The results confirm the good performance of ultrasonic sensors in these systems. ©2011 by the authors. Y1 - 2011/// AV - public A1 - Alonso, Luciana A1 - Milanés Montero, Vicente A1 - Torre Ferrero, Carlos A1 - Godoy, Jorge A1 - Pedro Lucio, María Teresa de A1 - Oria, Juan P. SN - 1424-8220 ER -