Road

Mandli's Pavement Profile Scanner (PPS) system collects pavement testing data from a vehicle traveling at highway speeds using a phase measurement Laser Radar for unparalleled precision, range, and sample rate. The pavement scanner is mounted to the rear of the data collection vehicle with no hardware extending beyond the vehicle width. Full-lane transverse and longitudinal profiles can be collected safely and unobtrusively.

Features Data collection at highway speeds 14 feet (4.3 meter) wide continuous coverage of the pavement 940 points in one transverse scan Each scan collected in 1/1000 of a second Accurate, repeatable results Non-obtrusive system contained within width of vehicle Software with robust graphical user-interface

Pavement Profile Scanner
The PPS consists of a rotating polygon that directs a Laser radar beam rapidly along a line of the pavement orthogonal to the vehicle's direction of travel. The core of the optical mechanical system is a rotating 6 sided polygon which synchronizes the modulated laser beam and receiver field-of-view as it sweeps the measurement spot through a 90º arc at a constant 1,000 times per second. The resulting profile width is twice the height at which the polygon is mounted. The design point is for a 14 feet (4.3 meter) profile, but this may be adjusted by moving the scanner up or down. The separation between each new profile depends on the vehicle speed.

Scanner Mount
The scanner mount can be customized for the rear of most full-size vehicles.

Distance Measurement Instrument
The system incorporates a high-resolution DMI which is used to process transverse scans into longitudinal profiles, to link pavement data to GPS, and to create continuous pavement images. The DMI provides a measure of the vehicle's linear distance travelled and is able to measure distances accurate to within +/- one-thousandth (0.001) mile per mile. It outputs pulses representing incremental revolutions of the wheel of the data collection vehicle.

System Controller and LCD Monitor
Data collection is controlled by a rack-mounted CPU with necessary processing speed, storage, and software to collect data in a real-time environment. The LCD monitor is located in the front of the vehicle and secured with an ergonomically placed shock-absorbing mount featuring a spring-loaded rubber-coated hold-down with side locks.

The PPS provides full-lane and shoulder pavement scans with up to 940 points per profile spaced one inch apart at 55 mph. It collects continuous longitudinal and transverse pavement profiles which can be used to calculate Rutting, IRI and more. When integrated with Mandli's digital downward imaging, results can be used in automated distress analysis.

The PPS produces a binary data file to be loaded into Pavement 3D software. Alternately, data from the PPS can be used to create an ERD file to load into ProVal, the industry standard pavement profile viewing software.

• Pavement 3D
• Roadview Player
• Roadview 6
• Roadview Explorer

Customized systems can be built for purchase, or data can be delivered as part of a service package.