Changing the horizontal alignment of bike lanes and separated bike lanes may be accomplished with either horizontal curves or shifting tapers. Large radius curves which meet or exceed the guidance for horizontal curves of shared use paths may be used but will typically only be practical for use on shared use paths. In most applications within a roadway corridor, tapers will be easier to establish and are sufficient. Tapers should generally occur gradually, with a minimum length as calculated using the formula in .

Solid white lane lines should be used to guide bicyclists around obstructions at a taper of Length (L) = (1+ W (Width of Obstruction)) * Bicyclist Speed (S) along the roadway (e.g., drainage grates) or shared use paths (e.g., bollards) following the Section 9C.06 and Figure 9C-8. See guidance on design speed for each bikeway type throughout