A driving cycles (DC) is a speed profile that represents the driving pattern of a given region or country. It is used to evaluate the vehicles energy consumption and emissions, as well as a tool to design vehicle powertrains and to evaluate strategies related energy management and logistics in several applications that involve the use of motorized vehicles. This book provides a comprehensive and general methodology to construct and assess DCs for motorized vehicles in a given region. Different techniques and methodologies for data collection and processing are presented, as well as new technologies and tendencies related to DCs are included and discussed. As an example, different case studies performed in Latin-American are presented and discussed.