ROUTEERRORS2

 

identifies potential errors in the positions and measures of the sections which make up the routes in a route system.  It is similar to the ARCPLOT ROUTEERRORS command, but instead of drawing the errors (which can sometimes be hard to make out) ROUTEERRORS2 writes the results to the SEC and RAT tables.

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ROUTEERRORS2 <cover> <route_system>

 

ARGUMENTS

 

<cover> - an existing arc coverage.

 

<route_system> - the route system within <cover> for which errors are to be detected.

 

 

OUTPUT

 

ROUTEERRORS2 creates/updates 2 items (POS-BREAK and MEAS-BREAK) in the <route_system> SEC and RAT tables.

 

In the SEC table:

 

POS-BREAK is set equal to 1 if a section's starting geographical position is not the same as the ending geographical position of the previous section in that route.  Otherwise POS-BREAK is set equal to 0.

 

MEAS-BREAK is set equal to the size of the gap/overlap between a section's starting measure (F-MEAS) and the ending measure (T-MEAS) of the previous section in that route.  A positive value indicates a gap.  A negative value indicates an overlap.

 

In the RAT table:

 

POS-BREAK is set equal to the number of position breaks between sections in the route.

 

MEAS-BREAK is set equal to the number of measure breaks between sections in the route.

 

 

NOTES

 

ROUTEERRORS2 runs from the ARCPLOT module of ARC/INFO, ver. 7.1.2.

 

ROUTEERRORS2 only processes those sections that are currently selected.  If no selections have been made on <cover> SECTION.<route_system>, then all sections in the <route_system> will be processed.