Any suggestions on how or where to form a team?

We suggest you take advantage of the various #techLA events that will be taking place all summer to meet folks who may be interested in joining your team. Definitely check out the monthly Civic Hack Nights run by Hack for LA. They take place on the last Tuesday of every month at Impact Hub LA in the Arts District downtown. There will also be several hackathons taking place in Los Angeles around water and community engagement, not to mention CicLAvia in August where the focus will be on transportation. In addition, use the hashtags #ChallengeLA along with #transportation, #community, or #water to find other people who are working on projects for Challenge:LA!