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from New Straits Times, dated Thursday, 18th April, 2002.
SELIAGROUP took delivery of the Road Scanner costing RM3.4
million equipped with computerized system to facility its road management
and maintenance works.
The system for scanning using Global Positioning System, is integrated
to give maps output of the roads being surveyed. All roadside events
such as road furniture, lamp posts and junctions can be recorded
digitally by for channel cameras installed on the vehicle.
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The Road Scanner
A Network Survey Vehicle built on a Mercedes Benz Vito, currently
used for our road maintenance by SELIAGROUP.
Role : To capture pavement condition data, survey mapping information
and roadside asset details in one survey operation.
Operations : Collection of road data whilst travelling at normal
traffic speed through an operator working from a specially customized
computer consoles. The acquired data are later downloaded via a
removable hard-drive or to a CD to be post-processed in the office.
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TECHNICAL DATA
Components
o 13-laser Multi-Laser Profiler
o 4-Channel Digital Imaging System
o Gipsi-Trac road geometry and mapping system
o Differential Global Positioning System(DGPS)
o 4 computers connected by a 10Mbits/sec Ethernet communication
network with 2 shared monitor, keyboard and a mouse switchers
Software
o Microsoft Windows for Digital Imaging System and Gipsi-Trac
o MS-DOS for Multi-Laser Profiler computer
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Data produced by the Road Scanner includes:
1. Roughness (IRI-International Roughness Index)
2. Rutting
3. Texture Depth (SMDAT-Sensor Measured Texture Depth)
4. Visual road surface conditions
5. Visual road assets information
6. Road geometry and mapping of routes surveyed
(including grade, cross slope and position)
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Supporting
Instrument
The Walking Profiler is a precision
instrument designed to facilitate the
efficient collection and presentation of
continuous paved surfaced information,
including distance, profile, grade and IRI. It
meets the World Bank Class 1 Profilometer
requirements and it is also used for
calibration of the Multi-Laser Profiler.
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Network Survey
Vehicle
 Uses
a laser profiler to facilitate collect data on the condition of the road, roughness
and rutting.
[ read more ] |
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