No, I'm not talking about a city-wide pedestrian zone. Even in the picture above that's not true. Except for limited and carefully considered circumstances, pedestrian-only streets tend to be mistakes. Actually, the architect behind the ubiquitous mall design, Victor Gruen, envisioned cities as pedestrian-only zones with giant parking lots on the periphery. He wound up creating the template for the suburban shopping mall. In the end, he retired a broken, bitter man back to his native Vienna.
Jacobs identified small blocks as critical to success because they offer more opportunities "to turn the corner" and make walking easier, more interesting and varied. The same principle applies here too: being able to cross at frequent intervals is just as important as being able to turn the corner frequently. So I don't think your plan would work out very well.
Since pedestrians already walk freely on bus lanes and the Green Line (I watch it every day) I don't think it's that big of a problem. Certainly, most streetcar systems were built expecting that originally. Rapid transit should be grade-separated.
check out this video
Jacobs identified small blocks as critical to success because they offer more opportunities "to turn the corner" and make walking easier, more interesting and varied. The same principle applies here too: being able to cross at frequent intervals is just as important as being able to turn the corner frequently. So I don't think your plan would work out very well.
Since pedestrians already walk freely on bus lanes and the Green Line (I watch it every day) I don't think it's that big of a problem. Certainly, most streetcar systems were built expecting that originally. Rapid transit should be grade-separated.
check out this video