Stringline Setup
Topcon Paver System Five Operator’s Manual
3-10
Setting Projected Slope Stringline
Jobs with slope transitions or super-elevations will have the
stringline set to the “projected slope.” As the profiler cuts, the Sonic
Tracker and mill follow the slope of the job, preventing elevation
errors at the edge of the road as the slope changes.
To set the stringline to the projected slope,
1. Set up the string at the desired elevation as shown in “Setting
Elevated Stringline” on page 3-5.
2. Raise or lower the stringline to compensate for the percentage
of slope and the distance from the edge of the road to the
stringline:
• If the road rises away from the stringline, the stringline will
need to be lowered (Figure 3-14).
Figure 3-14. Lower Stringline: 2% Cross Slope with 2 Foot Offset
Rise Run SlopePercentage×=
2.0' OFFSET
2.0'
2.0%
PROJECTED SLOPE
2.0% SLOPE X 2.00' OFFSET = .04'
LOWE
.04'