Maintenance Planning Systems for road, rail and

Maintenance Planning Systems for
road, rail and airport authorities
ViaTech
ViaTech is a Norwegian company with a comprehensive range of tailor-made products and
services aimed at road, rail and airport authorities.
ViaTech is an independent share holding company
established in 1996, which is mainly owned by the
employees.
The company develops, manufacturers and
services maintenance planning systems.
Our products include a Pavement Profile
Measuring System, Texture Measuring System,
Photographic System, Friction Measuring Systems,
Distance Measuring System and Data Management
Systems. The company employs a unique, highresolution laser and inertial motion technology
used in its pavement profile scanner. All of these
products have been developed in close cooperation with the users, in order to meet their
stringent demands.
ViaTech AS is constantly involved in developing
solutions through state of the art technology.
The shaping of future maintenance planning and
measurement systems requires a process involving
close cooperation with our customers. By understanding their challenges, we are able to define our
mission and better support our customers.
ViaTech is located in Kongsberg, 80 km west of the
capital Oslo.
Travelling by car or train will take approximately
1.5 hour from Oslo and 2.5 hours from Gardermoen (Oslo Airport)
Products
Pavement Profile Measuring System .........
Texture Measuring System.........................
Photographic System..................................
Friction Measuring Systems........................
Distance Measuring System........................
Downloading
Data Management Systems........................
Processing
Map Database
Pavement Profile Scanner (ViaPPS)
Drivers workplace
The Pavement Profile Scanner is used for detailed measuring
and inspecting a whole range of surfaces. It is used for inspecting and measuring the pavement profile, such as rut depth,
unevenness, cross fall, height of the road shoulder etc.
The system will also include crack detection and quality of
road markings. In order to achieve this, ViaTech employs safe,
unique, high-resolution class 3B laser technology in its scanner product. The Pavement Profile Scanner can measure the
entire width of the road with a great degree of accuracy and
resolution. The Pavement Profile Scanner is often combined in
ViaStudio with The Digital Photo System (ViaPhoto) presenting
high resolution images.
The scanner is made as a mobile unit that can be conveniently
mounted and dismounted on any vehicle. ViaTech’s integrated
Inertial Motion Unit will automatically compensate for the
motion of the vehicle.
This means that the Pavement Profile Scanners does not
require a custom made vehicle in order to operate. The high
resolution of the scanner provides increased operational safety
since the vehicle of your choice can operate at normal traffic
speed.
Drivers operator interface
Office program for analyzing measured data
All measuring and inspection data will be stored and marked
with the road data as well as the exact position from the GPS,
trip position or both.
The Pavement Profile Scanner (ViaPPS) has the following
accuracy:
• 600 measuring points over the width of the road
• 16 cm between each scan at a vehicle speed of 80 km/h
• vertical accuracy +/-1,2 mm
• horizontal accuracy +/-2,0 mm
• measurement width 4 meters
Pavement Profile Scanner detecting road marking
Laser scanner
Pavement
Pavement Profile Scanner princip
Pavement Profile Scanner detecting rutting
Texture Scanner (ViaTSC)
The Texture Scanner is measuring the pavement texture with
a high degree of accuracy.
By combining the height information from the texture Scanner
with the Inertial Motion Unit the International Roughness Index
(IRI) is calculated.
The Texture Scanner has the following accuracy:
• one line measurement
• vertical accuracy 0,045 mm
• 0.35 mm between each point at a vehicle speed of 40 km/h
Digital Photo System (ViaPhoto)
ViaTech’s Digital Photo System is mainly used for inspection
and maintenance planning of road, rails and airport runways.
Maintenance planning is based on the information gathered
about pavement surface and vegetation growth as well as the
status of such factors as all signs, markings and safety barriers.
The Digital Photo System is also highly suitable to document
sub suppliers’ maintenance work and the drivers’ view distance.
The Digital Photo System automatically produces high quality
digital images from a vehicle of your choice. All pictures are
marked with information such as road data and time.
The user interface includes a measuring device “ruler” for
horizontal and vertical distances.
Both GPS and trip positions can be noted by the system.
In addition, spoken messages, comments and other necessary
information can be recorded while driving. Information from
other measuring systems, like Pavement Profile measurements,
Texture measurement, Friction measurements etc, is integrated
into the ViaStudio user interface of this product.
Additional information, such as temperature, humidity etc. can
be included.
The system allows data to be analysed at a later stage and our
viewing program permits the information to be shared between
several users simultaneously.
The two cameras installed in the vehicle
ViaPhoto has the following characteristics:
• the recommended minimum time between pictures is 0,5 seconds.
• the normal shutter time outdoor is 1/5000 sec. At 80 km/h the vehicle travels only 5 mm while the picture is taken, ensuring that even the smallest details are visible.
• in tunnels the normal shutter time is 1/25 sec allowing sufficient information to be recorded. This precision is available with normal dipped headlights, which means no disruption to the flow of traffic.
• the horizontal and vertical ruler resolution: 1cm at a distance of 10 m.
ViaPhoto viewing program
Drivers operator interface
ViaFriction
ViaFriction is a one-wheel trailer, measuring the degree of
friction of the pavement surface. ViaFriction is developed for
both winter and summer conditions.
A unique measuring technology has been developed for
ViaFriction, continuously measuring the real friction in between
the tire and the road surface. The technology gives stable
results in various conditions, reducing the need for calibrations.
ViaFriction has few moving parts. This ensures that the unit is
almost maintenance free. ViaFriction is using an electric break
in order to break the measuring wheel. The generated power
is used to keep the unit free from snow and ice during winter
conditions.
Measurements during summer conditions requires a water film
in between the road surface and the test tire. ViaFriction units
delivered for both summer and winter conditions will include
a system to apply the water film. The watering system includes
a water tank in the back of the vehicle. ViaFriction and the
water tank can also be installed on a trailer allowing more
water to be stored.
ViaFriction will run freely behind the vehicle during transport
distances, but the unit may also be fitted with a device lifting
the unit off the road.
ViaFriction is suitable for all type of cars
Electrical connection between the car and ViaFriction
ViaFriction without the lifting device
ViaFriction has the following characteristics:
• weight approximately 60kg
• fixed and variable slip measurements
• watering system
• optional lifting device
• maximum measurement speed, road version: 80 km/h
• maximum measurement speed, airport version: 130 km/h
The Friction data is analyzed in ViaPlot
analyzing program
ViaFriction with lifting device and support wheels for balancing the
device prior to installation on the vehicle
Drivers operator interface
Friction Measuring System (ViaTrip µ)
Drivers operator interface
ViaTrip µ is a low cost Friction Measuring System,
measuring the degree of friction of the pavement
surface, in all winter conditions.
The Friction Measuring System is an extension to
the Distance Acquisition System. It can be installed
in a standard car without any additional mechanical
components.
The car is then equipped with the necessary
sensors, display and data logging equipment.
The driver follows a procedure using the car
brakes to initialise the logging of the friction data.
If the correct procedure is not followed, the
system will automatically warn the driver and the
measured data will be cancelled. This ensures a
quality control of the friction measurement.
All data can then be sent from the vehicle to a
server. The server contains programs for sharing
data with several users simultaneously.
Distance Acquisition System (ViaTrip)
The Distance Acquisition System unit performs
accurate measurements of the actual distance
driven by the vehicle. It can be installed in a
standard car without any additional mechanical
components. A distance calibration procedure
ensures the accuracy of the system.
The system obtains the distance information using
a tachometer. Additional sensors, such as GPS,
temperature sensor and humidity sensor can also
be included.
The Distance Acquisition System has a simple easy
to learn user interface.
Drivers operator interface
ViaStudio
ViaStudio integrates several applications such
as ViaPPS, ViaTSC, ViaPhoto etc, into a single
application. ViaStudio has a consistent and simple
user interface that makes it easy to operate several
measurement systems simultaneously. ViaStudio
may be operated by use of a touch screen.
This ensures that the operator keep his focus on
the traffic.
ViaStudio monitors all the subsystems and sensors
and gives the operator feedback if any errors are
detected.
Drivers operator interface
10
Data Distribution System (ViaLink)
Antenna
Camera System
Sensor
Collection/
Control
Texture
Scanner
Internal
Motion
Unit
System installation princip
Profile
Scanner
The Data Distribution System’s task is to share
data from measurement systems in the vehicle
with the relevant groups. Examples of such shared
information are the friction measurements.
The logged measurements are tagged with
information from the trip sensor and verified with
the GPS. The information is then sent to a central
server using mobile communication.
This information is encrypted and compressed in
order to achieve a fast and failsafe transfer.
The central server immediately distributes the
data using standard email to one or more
recipients. This dramatically reduces the time
taken for the friction measurement results to
reach the road maintenance authorities, allowing
an immediate response to sub-standard road
conditions.
Downloading
Processing
Map Database
Data Distribution System in the office
11
Tech
ViaTech AS
Dyrmyrgata 35, P. O. Box 790, N-3606 Kongsberg, Norway
Telephone: +47 32 73 66 32, Fax: + 47 32 73 51 51
www.viatech.no, [email protected]
Industriell Dokumentasjon as - 9267 - 09.07
Via