The MnRoad facilities were used to develop and test the Head Up Display system.
Figure 1. MnRoad test facilities
The MnRoad facilities are maintained by the Minnesota Department of Transportation (MnDot).
The Mn/Road is the world’s largest and most comprehensive outdoor pavement laboratory, distinctive for its electronic sensor network embedded within six miles of test pavements. It is located 40 miles northwest of the Minneapolis / St. Paul along the I-94 highway, its design incorporates 4,572 electronic sensors. The sensor network and extensive data collection system provide opportunities to study how heavy commercial truck traffic and the annual freeze/thaw cycle affect pavement materials and designs.
I have used the digital map of the MnRoad test track which was sampled using the DGPS by the Robotics Lab. of Mechanical Engineering Department of University of Minnesota.
The digitized test track is total 2 miles long.
References
Minnesota
Department of Transportation (http://www.dot.state.mn.us)