Abstract: A portable Dynamic Testing Vehicle able to test for surface friction, drag, and travel distance, through contaminates accounting for longitudinal and lateral acceleration. The DFT is completely self contained with on board power supply, control unit, and water tank. The DFT has a high profile and long chassis to facilitate ease of movement and measurement at up to 100 km/h. Data obtained is transferred through the use of a wireless data transfer to a small handheld personal computer and then to a desktop computer where data is analyzed and or archived via specifically written software.

Abstract: The present invention relates a temporary, moveable marker system for directing air or ground traffic. It relates to a marker having a shape that conveys information to air or ground traffic, such as an “X”, and being sized at least large enough so as to be seen by air or ground traffic. The marker is displayed on a generally horizontal surface in a generally horizontal fashion and may include elements for receiving fasteners to permit the marker to be fastened to the ground or other generally horizontal surface.