uniSURVEY offers the following features
- Scheduling, surveying, and displaying distress data
The database can be embedded into an integrated GIS system that
will allow the user to access and manipulate the data
interactively on a digital map. This makes scheduling and
surveying a fast and simple process. uniSURVEY also displays
distress data on the digital map. Figure 1 shows the survey plan
on a digital map.
Figure 1. Survey plan map dialog box
- DMI Triggered Digital Camera
uniSURVEY uses a Distance Measuring Instrument (DMI) to obtain distance
information as the vehicle travels along the
road. uniSURVEY triggers the
camera to take successions of snapshots of the pavement, sidewalk, or
bridge at a pre-defined distance interval, and save the image files,
DGPS information and other related information into a database. Figure 2
shows a device setup dialog box.
Figure 2. Device setup dialog box
- Inventory & Condition Data input
uniSURVEY can receive information on a wide range of road distresses and
asset data via an external keypad. It is specifically designed to
operate on a portable PC. It also provides a user interface that helps
the user to define collection rules, and distress types. Manual data
entry is standard; automatic data entry is possible directly from the
road surface into uniSURVEY when using standard measurement equipment.
Figure 3 shows the electronic keypad layout configuration dialog box.
Figure 3. Keypad layout configuration dialog box
- Pavement Distress Index
The PDI (Pavement Distress Index) rating is based upon visual inspection
of pavement distress. Although the relationship between pavement
distress and performance is not well defined, there is general agreement
that the ability of pavement to sustain traffic loads in a safe and
smooth manner is adversely affected by the occurrence of observable
distress. The rating method provides a mathematical formula for (PDI)
and provides an index reflecting the composite effects of varying
distress types, severity, and extent upon the overall condition of the
pavement. Figure 4 shows the PDI calculation dialog box.
Figure 4. Pavement distress index calculation dialog box
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Systems Inc. All Rights Reserved