Abstract: Systems (100) and methods (300) for automatically generating a quality metric for a specified surface area of a terrain (104). The methods involve acquiring mobile LIDAR data defining a geometry of the specified surface area of the terrain. The mobile LIDAR data is acquired by LIDAR equipment (106) disposed on a vehicle (102) traveling along the terrain. The methods also involve automatically determining a quality metric defining a quality of the specified surface area of the terrain using the mobile LIDAR data.

Abstract: A door hook including a U-shaped bracket having a top member and a front side and back side attached to the top member. The front and back sides are separated by a first distance, which corresponds generally to the thickness of a door over which the door hook is to be placed. A hook is attached to the front side, while a spacer portion is attached to the back side or top. A frangible joint is formed in the back side or top such that the spacer portion can be detached and then reattached to the back side. With the spacer portion in this reattached position the spacer portion and the front side are separated by a second distance, different from and typically less than the first-distance. The second distance corresponds generally to the thickness of a thinner or thicker door, over which the door hook may be placed after removal or removal and reattachment of the spacer.

Abstract: A door hook including a U-shaped bracket having a top member and a front side and back side attached to the top member. The front and back sides are separated by a first distance, which corresponds generally to the thickness of a door over which the door hook is to be placed. A hook is attached to the front side, while a spacer portion is attached to the back side or top. A frangible joint is formed in the back side or top such that the spacer portion can be detached and then reattached to the back side. With the spacer portion in this reattached position the spacer portion and the front side are separated by a second distance, different from and typically less than the first-distance. The second distance corresponds generally to the thickness of a thinner or thicker door, over which the door hook may be placed after removal or removal and reattachment of the spacer.