Travel control device and travel control method

The invention provides a travel control device and a travel control method. Provided is a travel control device capable of reducing lane changes unexpected by a driver in front of and behind a non-lane section. A travel control device is provided with: a no-lane section detection unit that detects a no-lane section in which no lane exists in front within a predetermined distance from the current position of a vehicle; a position maintenance unit that controls the travel of the vehicle so as to maintain the position of the vehicle relative to the width of the entire road in the non-lane section; and a lane changing unit that, when the expected position of the vehicle at the end of the non-lane section crosses the lane marking line, controls the travel of the vehicle so as to move to a lane having a large overlap with the vehicle prior to the position maintaining unit. 本发明提供行驶控制装置以及行驶控制方法。提供能够减少无车道区间的前后处的驾驶员未设想的车道变更的行驶控制装置。行驶控制装置具备：无车道区间检测部，在从车辆的当前位置起预定距离以内的前方，检测没有车道的无车道区间；位置维持部，以在无车道区间维持相对道路整体的宽度的车辆的位置的方式控制车辆的