Originally, I thought this was a somewhat strange way to plan a street: why not reclaim that space in the first place and make the street narrower? Then I realized that the decision to add the park and do head-in parking was probably made long after the original street was laid out. This seems to be a local effort to convert an arterial street into a friendlier walking street. Instead of 5-6 lanes, cut it down to 2 traffic lanes and 2 head-in parking lanes. Add some parks on the corners which also function as pedestrian crossing helpers. It almost fools you into thinking this is a small street. And it might be the only practical solution. On the other hand, just after I took this picture, someone raced up and passed another car while honking. So the message hasn't quite gotten through to everyone.