In 1999 the 2getthere designed ParkShuttle system was opened in the Kralingen neighbourhood of eastern Rotterdam using 12-seater driverless buses. The system was extended in 2005 and new second-generation vehicles introduced to serve five stations over with five grade crossings over ordinary roads. Operation is scheduled in peak periods and on demand at other times. In 2002, 2getthere operated twenty five 4-passenger "CyberCabs" at Holland's 2002 Floriade horticultural exhibition. These transported passengers along a track spiraling up to the summit of Big Spotters Hill. The track was approximately long (one-way) and featured only two stations. The six-month operation was intended to research the public acceptance of PRT-like systems.