According to a local Mission resident, the streets on South Van Ness are full of maniac drivers that must be stopped. Although the local speed limit is 25 mph, most people go much faster than that. In other words, traffic calming is needed to keep 13th to Cesar Chavez on S. Van Ness safer.
If you agree with this claim, you can go online to show your support. The local 311 is well known for taking on issues posted to the site that seem to have resident support. If you would like to leave your details, it will become part of the 311 report about the area. 311 will then distribute it to the correct SF agency that covers your issue.
To start, simply go here and vote on the issue. If you have another concern about the Mission neighborhood, you can create a separate ticket.