- "bulb-outs", extentions of the sidewalk at intersections, which make the distance to cross for pedestrians shorter;
- pedestrian signals;
- frequent bus stops;
- a bike box at an intersection where frequently cyclists need to make a left turn. This is a space - usually painted green - in front of the stop line for cars at a traffic light, where cyclists can wait until the light turns green, so that they more easily make the left turn.
There's more to designing streets/neighbourhoods/communities than just incorporating these kinds of elements though. Read this article from "Project for Public Spaces".