RUNNING PRECISION SURVEYS WITH LONG SPEEDS OVER THE HIGH STREAM WATERS OR OVER VARIOUS OBSTACLES
The practice of surveying requires often times that the levelling be made over wide
water or other obstacles areas. In case of existing resistent bridges (from steal or reinforcedÂ concrete) the levelling should be done on these, but in their absence the proccessÂ will be carried out using long points.
One such levelling is necessary also in connection to the main survey networks (ord
I) with the isles near to the beach or with the mareographs forseen on the isles.
The present study demonstrates this aspect.