Ground Traffic Control   Roads & Bridges February 2007   By Rodney Garrett
PennDOT dives into laser-guided equipment at airport job

Just drive!   Roads & Bridges April 2002   Allen Zeyher
Today, if you’re building a road, using 3-D machine guidance and machine control technology will take anywhere between 15 and 30% out of the cost of your earthmoving and preparation phases,” Mark Nichols told Roads & Bridges. “It eliminates the need to go out and put stakes in the ground, so you can significantly reduce your survey costs associated with the project.