I certainly respect our difference of opinion but I don't think that having one additional stop sign changes much traffic flow down fifth when the very next block (and every subsequent block) there is a stop. Even if people roll through stop signs, at least they slow down which is enough to prevent an accident. If you try turning onto fifth from Otis st, you'll see why I'm concerned. There is no way to see if a car is coming from either side until you are half-way into the intersection.

The proposal to make all the streets one way is interesting and worth considering, but it will only make turning onto fifth street half as dangerous as you'll only worry about traffic coming from one side.

If you want to move quickly through East Cambridge, I think you should be driving on 3rd street, not 5th street or other "internal" streets in the neighborhood.