Researched, developed and patented by Longdin and Browning. Known as Clear Cone in Europe. Enables a high precision survey of a highway surface which the Vangarde vehicle can complete while positioned on a highway hard shoulder, eliminating the need for lane closures.

• Safety - Reduces survey personnel exposure, and eliminates the 65% increase in road accidents encountered at lane closures.


• Cost Effective - As need for traffic management is reduced. Further costs associated with traffic delays are also reduced


• Accuracy - The system consistently produces pavement levels to better than +/-0.01ft. Extensively tested and approved by Caltrans, North Carolina DoT, Georgia DoT, New York DoT …