Welcome to the OAC. Thanks for joining Urban Anthropology. Please feel free to comment, introduce yourself or start a new discussion.
The two groups you've created look interesting. I can't say I've heard of the anthropology of roads before, and it's always nice to be introduced to new things here. Once you've added a description for each group, I'll add them to the OAC Group index (http://oac.collected.info). All new discussions and comments will then appear on that page so that everyone can contribute.