Chestnut Walk   The creation of Chestnut Walk, a meandering mid-block promenade stretching from Market Street and eventually through to Chestnut Street, open up the interior of the site to the public. Seldom used Ludlow Street and Clover Street are opened up to one-way vehicular traffic as cobblestone streets and life will be brought back to the center of what was a super block. This open space is filled with mix of restaurants with lively outdoor dining, retails and office space. This walk was part of East Market Development. (phillymag)