This is something that is well-known in planning circles. In Seattle there have been a huge number of road diet (widening the sidewalk and redesigning the road

This is something that is well-known in planning circles. In Seattle there have been a huge number of road diet (widening the sidewalk and redesigning the road for slower traffic speeds) + protected bike lanes coming online. Pedestrians benefit from this, too, from the increased safety and the other pleasant effects of traffic calming. Here's a map: http://seattlecitygis.maps.arcgis.com/apps/webappviewer/index.html?id=a24b25c3142c49e194190d6a888d97e3 http://seattlecitygis.maps.arcgis.com/apps/webappviewer/inde... And there are a number of ongoing projects. See: https://www.seattle.gov/transportation/projects-and-programs/programs/bike-program/protected-bike-lanes https://www.seattle.gov/transportation/projects-and-programs...