Validate Alignment

(This functionality is available with the Computations module)

Checks and reports on an alignment object for consistency errors and non tangency.

Validate Alignment dialog box

Item	Used to
Alignment	Select the alignment to be validated.
Validate Internal line points	Include all vertices in the validation check. If this is not selected, only the vertices at the join of linear objects making up the alignment will be validated.
Length Tolerance	Enter the shortest line segment length desired in the alignment. Segments shorter than this length will be reported.
OK	Carry out the validation check. Any errors or warnings will be reported.

Explanation of messages

Message	Explanation
Warning - no tangency at point	The alignment components meeting at the point are not tangential.
Warning - Radius changes at point	The alignment components meeting at the point are of different radius. (Note: This warning will also show up at points where the alignment changes from a straight to an arc or spiral of non infinite radius, on the basis that a straight has an infinite radius. Do not be concerned with this warning at such points.)
Point is no longer a valid IP	The IP point is not in the correct IP position. You should re create the IP.
Intersects itself.....	The alignment intersects itself at the coordinates shown.
Between Point .... Segment distance too small	The line segment between the points is smaller than the entered 'Length Tolerance'.