The November issue of the Cartographer's Annual features templates and examples for a special type of symbol: Connecting catalogs that allow you to create stretches of symbols like streams, wagon tracks, etc. almost as if you were using a drawing tool. First introduced with the release of Cosmographer Pro, this Annual issue concentrates on using bitmaps and bitmap fills in these catalogs. It features a preview of the capabilities of upcoming City Designer 3.
The accompaning guide explains how to use the included CC3 and bitmap templates to create your own connecting symbols in whatever format you like: Vector, bitmap fills or full bitmap symbols.
For larger examples see the Gallery.
The symbol pack Connecting Symbols includes:
More resources on connecting symbols can be found