11. The system was lightweight, with stations designed for trains of only a single articulated vehicle . 12. All the double-articulated vehicles , along with a further 18 of the single-articulated units, are low floor. 13. In February 2000, Muni exercised contract options to purchase an additional 20 two-axle and three articulated vehicles . 14. On several occasions lane closures have resulted as a consequence of articulated vehicles simply being blown over. 15. Unlike light rail systems with articulated vehicles , the trolley lines use vehicles closer in size to classic PCC streetcars. 16. An "'articulated bus "'( either a motor bus or trolleybus ) is an articulated vehicle used in public transportation. 17. Several years later, the operator began purchasing new two-axle trolleybuses, and these gradually replaced all of the articulated vehicles . 18. With the introduction of the latter group of vehicles, line 32 will be fully converted to bi-articulated vehicle operation. 19. It was reported that operation of the route by articulated vehicles cost around ?.6 million more per year than double-deck operation. 20. Earlier, at the start of 2006, there had been extensive test runs using a bi-articulated vehicles from the Geneva trolleybus system.
