treads or rollers to facilitate transportation and orientation wheels 32 may be used in conjunction with trailer hitches goose neck attachments or fifth wheel style attachments wheels 32 may be affixed using axle 34 or using independent axle tandem axle removable or hinged wheels in this and other aspects bollard 2 and flange 14 may be raised and or lowered using a raising lowering device 40 and hinge 6 as shown in fig1 a raising lowering device 40 may be for example an electric rotary motor having a tab 42 that interfaces with a slot 44 in hinge 6 raising lowering device 40 may activate and turn tab 42 in a direction u2018 r u2019 which applies force to slot 44 of hinge 6 and causes bollard 2 and flange 14 to pivot between raised and lowered positions in one aspect raising lowering device may be immovably fixed and tab 42 and slot 44 may be arranged so that when bollard 2 and flange 14 are in a raised position tab 42 and slot 44 may become disengaged as bollard 2 flange 14 and hinge 6 travel away from an original position and away from raising lowering device 40 in a direction u2018 t u2019 as shown in fig1 b in another aspect raising lowering device 40 and locking mechanism 12 may be controlled by a computer.