The new urban reality is that cars are both necessary and, at times, undesirable. Large, dense cities with high traffic volumes are opting for a new urban street type - pedestrian - and its close relative, managed vehicular access only. New technology comes to their aid; retractable, card activated bollards. This combination produces a fused grid (see Wikipedia and albums) regular streets for all modes and special streets that are preferential to pedestrian movement and enjoyment. Thanks to Christina Grammenos, the photographer