needing these specialised machines. The market for these machines is known to be marked by especially strong boom and bust cycles, and after a great demand in the 1990s the market crashed in 2001, leading to a strong contraction amongst the manufacturers. The industry began a strong growth period again in 2003 that resulted in peak shipments in 2007 prior to the economic crash in 2008. The 2008 crash has caused a strong consolidation amongst rental companies and the industry reached high unit shipment levels again in 2018. See also Early aerials Forklift truck Lift table Long reach excavator Helix tower References External links International Powered Access Federation 1944 introductions American inventions Vehicles by type Vertical transport devices Articles containing video clips ru:Автомобиль-вышка