Original: Efforts are under way by pedestrian advocacy groups to restore pedestrian access to new developments , especially to counteract newer developments , 20 % to 30 % of which in the United States do not include sidewalks .
Simplified: Efforts are underway by pedestrian advocacy groups to make it easy to be a pedestrian in new developments , especially to counteract newer developments where 20 to 30 percent do not include sidewalks .