So when I hear about communities in Palo Alto "viscously" blocking traffic, I wonder if perhaps they are simply attempting to return traffic levels that were present when they bought their houses to raise their children.
When should it be resolved?
It's definitely the case that most drivers gain a bit of speed going down a hill, but it's been that way forever and it's not something you're going to change. So if one of your main concerns is the speed of traffic outside, don't buy a house at the bottom of a freaking hill.
Now, there is another route, along a major roadway, with a higher speed limit and more lanes. But its not a direct route and is 0.8 miles longer. I doubt that the quality of life of this new community would be severely impacted if they were "encouraged" to take this existing route.
Anyway, take a video of people barreling down the hill and send it to a city council member. Newspapers also like this sort of thing when it's egregious enough.