You might want to build a chase with multiple paths that split and rejoin so you can have a shortcut (with easier DCs or fewer obstacles) or paths that appeal to different types of characters. For instance, one obstacle might allow a PC who critically succeeds at a Perception check to find a faster path through an air duct, without the obstacles of navigating a busy nightclub. This can be fun, but it can also split up the group. Familiarize yourself with the
Solo Chases sidebar to make similar adjustments for a divided group.