Otherwise bikes get an extra hill :).  And then you get extra speed when you don&#x27;t need it.  Down and then up is easy.  Although for typical intersections I&#x27;m not sure either is a particularly good idea most of the time.  Other options are separate signals or giving priority to cyclists (Hembrow has a bunch of pictures of this stuff), or, as someone else mentioned, for high density areas having a separate fully elevated bike path could work too.