Description
The Callisto Hy-Rail track geometry measurement system allows for simplified track geometry measurements to be made from most standard hy-rail vehicles. This compact system measures all FRA required track geometry channels, and generates reports containing strip charts, curve tables and defect list, according to FRA track class. Callisto is an independent system that can be installed on almost any vehicle by utilizing a standard receiver hitch or by a custom mounting design.
Callisto track geometry measurement systems incorporate an inertial measurement unit (IMU), a laser/camera based gage reference system, and GPS within a rugged, compact package to accurately locate and measure the geometry of the track. Typical geometry channels are recordedbased on the application and can include: gauge, alignment, curvature, surface, cross-level, super-elevation, warp and twist. For inspection applications, track geometry channels are processed to produce exceptions in real-time.
FRA Compliant Exception Processing
SPECIFICATIONS
Measured Track Geometry Data
Gauge
Alignment (Left/Right)
Curvature
Surface (Left/Right)
Crosslevel
Superelevation
Warp
Twist
Defect List generated in Real-Time
01
Type of defect
02
Start and end milepost location
03
Milepost of defect’s highest deviation
04
Maximum defect value
05
Safety or maintenance defect classification
06
Defects generated according to track class selected
07
Defect list can be based on customer-specific thresholds
System Features
- High value, low cost, accurate measurement solution
- Exceptions processed in real-time based on FRA track
class threshold limits - Measurements can be made at 10-30 mph
- Average precision of 1.5mm/0.1°
- Minimal retrofit requirements for existing vehicles
- Metric or Imperial units
- Independent system that can be installed on almost any
vehicle by utilizing a standard receiver hitch or
by a custom mounting design
Callisto has enabled UTA to increase tamper productivity. By using the inspection data, it eliminates the need for pre-runs with the tamper prior to surfacing. Now UTA can start tamping as soon as the machine reaches the work site, significantly increasing productivity. Callisto’s multi-channel measurement system has allowed us to quickly access geometry data for our operations with pinpoint accuracy. We can validate our track charts are accurate to ensure curves and super-elevation are appropriate for operating track speeds. The result is sustainable track conditions and ride quality for each of our passenger trains.
David Filby
Manager of Right of Way Assets
Utah Transit Authority
