User's Manual

IDS Ingegneria Dei Sistemi S.p.A. N doc: MN/2009/028 - Rev. 1.1

DETECTOR DUO SYSTEM – User manual

The most important types of utilities (which may be managed by

different agencies) to be considered are:



Public Street Lighting



Low, Medium and High Voltage Electricity Cables



Water supply



Gas



Telephone Cables



Sewers

Even though they may be very generic, these maps represent an

important support during the extraction and data interpretation phases,

since they give the user a first idea, if not an exhaustive one, of the

utilities that are present.

For this reason, it is important that the user activates the procedures

for obtaining these maps well in advance to make sure that they will

be available during the data extraction phase.

APPENDIX C - OPENING MANHOLES

This phase is normally performed once the acquisition phase has been

completed, and consists in opening the manholes present in the

investigated site.

The data regarding the depth, diameter, and direction of the utility

should be saved on the work sheet: this will provide you with further

reference data during the interpretation phase, and will allow

propagation velocity estimates to be performed in order to calculate

the depth of the identified utility as precisely as possible.