An excavation machine that moves on tracks to assist movement on soft or rugged terrain.
Track lighting
Lighting fixtures positioned along a ceiling mounted track. The track supports the fixtures and provides the electricity.
Tracking solar array
A solar energy array that follows the path of the sun to maximize the solar radiation incident on the PV surface. The two most common orientations are (1) one axis where the array tracks the sun east to west and (2) two-axis tracking where the array points directly at the sun at all times. Tracking arrays use both the direct and diffuse sunlight. Two-axis tracking arrays capture the maximum possible daily energy.
Tract
A parcel of land, generally held for subdividing and development into residential units.
Tract home
A mass-produced house constructed within a project by the same builder, with similar style and floor plan as the other homes in the development.
Tract index
System for listing recorded documents affecting a particular tract of land.
Traction
Friction of a body on a surface while moving.
Tractor
A tracked vehicle used for a variety of construction and farming tasks.
Tractor-loader-backhoe
A multi-purpose piece of excavation equipment with a loader on one end and a backhoe on the other.
