Crossing Details fill

Dear users,
I have manually filled 02 crossing details in Colum "L" to Colum "W".

Start Easting Start Northing Center Easting Center Northing End Easting End Northing Before TP/IP After TP/IP Start CHAINAGE Center CHAINAGE End CHAINAGE ROW to ROW Distance


Please help me to fill in the crossing information.

The only column which I feel I understand well enough to provide a formula is W.
It seems that the formula there could be:

Formula:

Please Login or Register  to view this content.

I believe that we will need explanations for the other columns in order to help.
Let us know if you have any questions.