What does your residential street look like? My guess is that is is wide and has no physical traffic calming features to make it uncomfortable to drive fast. If

What does your residential street look like? My guess is that is is wide and has no physical traffic calming features to make it uncomfortable to drive fast. If you and your neighbors want to slow people down on the street, you should fight for measures that make people feel like they should go slow naturally. Studies have shown [1, 2] that drivers often base their speed more on the "design speed" of the road more than the posted speed limit---and this likely resonates with most drivers. Certainly software limits on self-driving cars would solve the speed issue, but I don't think that is the only hope---nor do I think it (or self driving cars in general) is the best answer. [1]: https://pdfs.semanticscholar.org/9354/17c4dca8e52a2a4920bd9eaa156f66b27556.pdf https://pdfs.semanticscholar.org/9354/17c4dca8e52a2a4920bd9e... [2]: https://www.mdpi.com/2071-1050/12/19/8143 https://www.mdpi.com/2071-1050/12/19/8143