via Streetsblog: Prepare to be mesmerized. Betsy Emmons has mapped the history of New York City’s bike network using the platform MapStory, where she’s currently a summer fellow. Watch the city’s greenways, bike lanes, and bridge paths expand over 120 years.
You can see the first designated bike routes — promenade-style parkways designed by Olmsted and Vaux in the pre-automotive era — crop up on Ocean Parkway and Eastern Parkway. Bike access via bridges and ferries is visible early on — these are labeled “Class L” in the data, says Emmons, which means they were designated as bike routes but did not necessarily include dedicated space for cycling.
view at MapStory.org