Pre & Post tamping track measurement survey using Trimble gedo vorsys trolley system or similar and development of updated scale map Under the Jurisdiction of Sr. DEN/2/HWH Under HWH Division.

A-Non Schedule Items (in/c GST)

"Pre-Tamping Measurements reference points, Establishments of main GNSS (DGPS Base) Point & reference point establishment at 150 meter maximum interval along the track" Per Track

"Pre Measurement for tamping with total station & prism Gedo/ AMBERG / or similar trolley measure and store Gauge,Cross elevation, Chainage, shift and lift value at every 3m i.e. every 5th sleeper interval along the track center line and coordinates to track center line at every 3m to be submitted with track geometry (per km/Round)" Per Track

"Construct Target/Design alignment with the good points of existing pre measurment 3 profile in design software to export data in ALC format with design alignment of measured reading in M/c and to provide track adjustment file with overextension and also to provide Geo Geometry file to provide text file with slew, uplift and gauge at every 3m i.e every 5th sleeper interval for tamping machine operator during reference" Per Track

"Post Tamping Measurements with total station & prism Gedo/ AMBERG /or similar trolley measure and store Gauge, Cross elevation, Chainage, shift and lift value at every 3m i.e. every 5th sleeper interval along the track centre line and coordinates of track center line at every 3m to be submitted with track geometry" Per Track

"Reporting soft and hard copies of slew & uplift report at every 3m interval i.e. every 5th sleeper interval compared with design vs profile report of offset distance from track centre to OHE, neighbouring track centre & platform point compared with design vs pre profile report. "