between lübeck and hamburg regional-express trains run every twice an hour from morning to evening from monday to friday and hourly on weekends. this section has the greatest number of train passengers in schleswig-holstein. the regional-express trains stop only in reinfeld, bad oldesloe and at times in ahrensburg. regionalbahn trains operate on the hamburg–bad oldesloe section, stopping at all stations. they are almost always composed of double-decker coaches. they are propelled in push-pull mode by electric locomotives, either class 112 or 143.