Delineator posts should generally be positioned at 10m spacing, so as to minimise the possibility of loss of vehicular control if the line of posts is traversed through the spacing. In lower speed environments or when segregating cycling facilities, spacing can be more frequent. Post spacing on curves may also need to be adjusted.
There are a variety of methods by which the delineation post can be attached to the road surface. This includes pin installation, epoxy resin, bolt down systems and posts mounted onto rubber traversable islands. Experience with posts used within temporary traffic management worksites suggests that it is prudent to consider more than one method for fixing the post / footing to the road surface in locations that may experience high attrition rates.
The appropriate method for fixing the posts will be determined to a large degree by the road surface material on which the fixing is placed.