A vehicular low profile, self propelled aerial work platform having an articulated parallelogram boom assembly (5) including a lower boom assembly having pairs of compression (9) and tension arms (10) pivotally connected between a support frame (1) on the vehicle and a floating frame (11), and an upper boom assembly having pairs of compression (16) and tension (17) arms pivotally connected between the floating frame (11) and a riser (6) connected to the proximate end of a telescopic boom assembly (7) having a work platform (8) connected to the distal end thereof. The ends of the tension arms (17, 10) in the upper and lower boom assemblies which are pivotally connected to the floating frame (11), share the same pivot connection (15) so that when the articulated parallelogram (5) is in the folded position the tension arms (17, 10) are inter-digitated and lie in the same common plane so that the vehicle can be maneuvered through a low doorway, in the order of six feet, seven inches. A synchronization linkage (33) is mounted in the floating frame (11) and connected between the pairs of compression arms (16, 9) in the upper and lower boom assemblies for maintaining the floating frame (11) in a vertical orientation during the elevating and folding of the articulated parallelogram boom assembly (5). IMAGE
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