Laser Profiling of Switches and Crossing.

Descriptions

Network Rail requires an automated system to take gauge measurements at a minimum of 10 prescribed points through an S&C unit. It must additionally be capable of continuous measurement of both the stock and switch rail profiles within the S&C unit and be able to identify any exceedances of predetermined limits in the rails' profiles.The system must be self-propelled with the following characteristics:— transportable in a transit size van or flat-bed vehicle,— able to be lifted by 2 people,— operable by a maximum of 2 people,— able to operate in all weathers and in a temperature range of -10 to +40 degrees centigrade,— be compatible with 1435mm and 1432mm gauge S&C units,— be capable of measuring flat bottom and bull head rail sections,— be capable of measuring inclined and vertical S&C units.It must also be capable of measuring crossing profiles, including the nose, wing rails, vee rails and check rails, and comparing these against previous measurements to calculate wear.