Her e ’ s how i t wor ks
Step 1 The user takes a pavement survey with an MFV, RSP, and LCMS.
Step 2 DDC software collects the survey data from the survey and exports it into the DE pavement analysis program.
Step 3 Dynatest Explorer evaluates the functional pavement condition, giving the user access to all information, including PCI values.
Step 4 The system can display PCI values or export them to a spreadsheet or Google Earth map.
Dynatest’s PCI Calculation Tool The U.S. Army Corps of Engineers Research Lab developed in 1976 an empirical metric for rating a pavement’s condition taking all types and severities of distresses into consideration. The international standard ASTM D643320 (and ASTM D-5340-20 for airports) uses the resulting pavement condition index (PCI) to determine the current condition of a pavement network, but the calculations of the PCI value can be time consuming and difficult to perform. To do all the PCI calculations based on ASTM D6433-20 and with the functional pavement condition data within the sam-
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58 MAY 2022
ple unit that a user defines, Dynatest A/S, headquartered in Denmark, has launched its automated PCI calculation function as a licensed module within the Dynatest pavement analysis program, Dynatest Explorer (DE). Here’s how it works: Because the PCI calculation tool is a module of DE, the user first takes readings of the pavement in question with the Dynatest Multi Functional Vehicle (MFV) equipped with the Road Surface Profiler (RSP) system and Laser Crack Measuring System (LCMS®), which collect pavement data. Dynatest Data Collection (DDC) software stores and controls the data from the
MFV’s survey. The data is displayed while testing or stored for export into the DE program. The DE program analyzes the data, evaluating the functional pavement condition. DE then gives the user access to all the data, images and distresses acquired during the survey, allowing for visualization, verification, calculation and reviewing of results, which now include the PCI values. The system can display the PCI values on a table or a graph, export them to Excel, or show them on a map exported to Google Earth. For more information, contact Dynatest through Oline Westerdahl at owl@dynatest.com.
