Abstract: A mobile frame (10) for supporting an elongate flexible structure (11) such as a ground working tool assembly, the mobile frame (10) is foldable between a first position in which the elongate flexible structure (11) is supported in a working condition in relation to the ground, and a second position in which the elongate flexible structure (11) is supported in a stored condition in relation to the ground. The mobile frame comprises a first frame portion (31) supported for movement over the ground and a second frame portion (32) for supporting one end of the elongate flexible structure. The second frame portion is mounted on the first frame portion for folding movement with respect thereto about a pivot axis inclined to the fore-and-aft axis of the mobile frame such that the spacing between the ends of the elongate flexible structure (11) increases as the elongate flexible structure is moved from the first position to the second position.

Abstract: A system and method for data entry and retroactive reconstruction of the relative position of features and objects, in particular with respect to scenes such as transitory occurrences, utilizing a signal transmitting and receiving distance determining device. In a particular embodiment, the system and method disclosed has especial applicability to the on-scene recordation and subsequent ex post facto reconstruction of traffic accident scenes by law enforcement officers and may be readily and efficiently implemented in conjunction with a commercially available laser-based speed and distance determining device otherwise usable for vehicle speed traffic monitoring functions utilizing either triangulation or baseline/offset mensuration techniques.