TM 5-6675-348-13&P
b.
Definitions of Technical Terms.
Actual Blade Slope The monitored slope of the blade, which is used to calculate desired cross-slope.
Actual blade slope and desired cross-slope are equal only when the blade is perpendicular to the
machine's direction of travel.
Benchmark A point of reference from which measurements may be made.
Calculated Cross-Slope The cross-slope is calculated by using the information provided by the
machine-mounted sensors and calculated with the Blade Pro Motor Grader Control System.
Desired Cross-Slope The slope that is marked on the job plans. This may be referenced from the
centerline of the road to the 1/4 crown, from shoulder to shoulder, or from shoulder to ditch, depending
on the plans. This is the slope entered into the Blade Pro Motor Grader Control System's Operator
Interface Box.
Elevation The height above or below a set point.
Mainfall The slope of the machine in the direction of travel.
Percent Slope The change in elevation between two points divided by the distance between the
points and multiplied by 100.
Elevation A Elevation B
-------------------------------------------------------------- 100 = Percent (%) Slope
Distance
Plane A flat or level surface.
Resultant Cross-Slope The measured slope perpendicular to the direction of the machine's travel.
Slope The change in elevation between two points in relation to the measured distance between the
points (e.g., 1/4 in. per 1 ft [6.4 mm per 30.5 cm]).
1-5/(1-6 Blank)
