Path-based URLs can be either context root URLs, or a combination of context root and directory paths. Path-based URLS share the same domain name, but are identified with the context root component of the path, which start with a / (forward slash). For example:

www.site.com/SiteA
www.site.com/SiteB

Because both the context root and path values remain constant per site, there is no need to create URL transformation rules.