Page 88 - BCCGA Best Practices Version 3.0

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5-0
MAPPING
5-1 ONE-CALL CENTRE RESPONSIBILITIES AND USE OF MAPPING
PRACTICE STATEMENT: The one-call centre uses a land base in its mapping
system that is accurate and updated when new information becomes available
from source suppliers. Facility owners/operators provide regular updates of
their notification mapping coverage to ensure the most current information is
utilized in the system. The land base used is available to the public, and is able
to produce a ticket for the smallest practical geographical area that utilizes
latitude and longitude co-ordinates to describe the location.
PRACTICE DESCRIPTION: The land base should be precise, current, and
contain the most complete coverage available. It should be geographically
correct to a reasonable degree as well as cost effective. The information from
the land base should permit for two way conversion and/or exchange of data.
The user should only need to utilize a single standard geographic reference.
The one-call centre is to have a cost effective process in place to keep the land
base current (in both graphics and attributes) with regular updates and
maintenance. This process should be as automated as possible to avoid user
errors. The land base should be updated promptly when information is
provided or becomes available from the facility owner/operator. The system
maintaining the land base should be able to accept information in a standard
file format and with minimal human intervention. The graphic database refers
to the member notification area coverage.
The mapping system should have the capacity to produce a ticket for the
smallest practical geographical area suitable to the requirements of the
member of the one-call centre. The system should also have the flexibility to
handle the various sources of information contained.
The land base should be made available for public viewing (ground disturbers,
project owners, homeowners, etc.) to validate limits of dig areas. The land base
and database should be also available to the members of the one-call centre in
order to update membership database information.
Best Practices Version 3.0