Digital Highway Data Vehicle (DHDV)

(To see the above image animation, you need to install Java Runtime)

The Digital Highway Data Vehicle (DHDV) includes the capabilities of the Automated Distress Analyzer (ADA), rutting survey, inertial laser based longitudinal pavement profiling and roughness measurement, pavement right-of-way imaging, and positioning data collection.  In addition, WayLink provides users a comprehensive application interface for accessing all data sets collected and analyzed with the data collection devices, the Multimedia based Highway Information System (MHIS).

Key Features

  • Full-lane width distress survey of pavements at speeds of up to 60mph (100 Km/h) and processes cracking data in real-time with ADA with laser based imaging sub-system for shadow-free image collection.  ADA can also be used offline in office environment.
  • Full-lane width Rutting Measurement, using accurate lasers that can detect ruts down to 1-mm depths.
  • Longitudinal profiling system to present longitudinal roughness, and calculate International Roughness Index (IRI), Ride Number (RN), and Macrotexture (MT) values, in accordance with the ASTM standards.
  • Pavement Right-of-Way imaging system, with multiple high-resolution, digital color cameras to capture imaginary of roadway and roadside structure.  Varying camera options are available, including 1080p High-Definition (HD) cameras.
  • Positioning System Array consisting of a differential GPS receiver, DMI, and a multi-axis solid-state Gyroscope.  User also can select high-precision Inertial Measurement Unit (IMU).
  • Multimedia Highway Information System (MHIS), a user-friendly application designed to dynamically display the DHDV-produced data sets in a descriptive, visual, and flexible user interface.  The deluxe version of MHIS allows user to manually edit and add various distresses defined through LTPP, MicroPaver, and others.

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