Subaru Corp. aims to start selling vehicles equipped with the equivalent of "level-2" autonomous technology, which can steer, accelerate and slow down on ordinary roads, in the second half of the 2020s, company officials said Tuesday. But developing such vehicles to run on ordinary roads has been a challenge, due to the need to respond to unexpected scenarios such as pedestrians' movements in order to avoid accidents. Subaru plans to develop a next-generation system using its EyeSight Driver Assist Technology and artificial intelligence to recognize a traffic lane even when the white line on the roads cannot be seen. Level-2 technologies allow drivers to take their hands off the steering wheel under certain conditions, but drivers are still required to monitor the vehicle's driving at all times. Earlier this year, Toyota launched new models of its luxury sedan Lexus LS and hydrogen-powered Mirai that are equipped with level-2 assistant technologies.