I have noticed that several of the drawings on this site appear to indicate an
allowance for the truncated domes warning strip to be placed perpendicular to
traffic on a single direction ramp when the distance of the bottom of the ramp
to the furthest distance to the curb line is less than 6-ft. This is similar
to several municipal standard drawings I am aware of. Is this typically found
to be acceptable?
I oversee a lot of installations and for ease of construction and replacement I
see a preference. However we do have concerns about it not being placed
immediately behind the curve as to performance and meeting federal
requirements. I believe the allowance for a gap is "slight" in the regulations.

This may be more a preference as an engineer to straight lines, but since the
products we typically see are square it seems to work better.
Thank you for any feedback.