Fabrizio kind reply -
The road direction is based on the polyline orientation (I mean it depends on the way you draw the polyline). BTW if you used a grouped set of entities to create the middle line, instead of using an ArchiCAD polyline, this direction unfortunately can be random: due to the ArchiCAD way to handle the grouped entities.
Please, pay attention: once you create the Road preview the direction cannot be changed (as you already realized)......
In order to better help you, I'm going to upload a new maintenance update at www.cigraph-store.com
(please, look at the date to verify if the version has been uploaded today, I will write 9/16/04 in order to distinguish it from the previous one uploaded yesterday).
Jay A. Garbarino - Cornerstone Engineering
Windows 10 Pro
Dell XPS 8930 - 3.20GHz Intel Core i7-8700- 32GB RAM - 6GB NVIDIA GeForce GTX 1060
AC23 USA Full