[Charlie Komanoff is an economist who has performed numerous cost analyses over the past two decades. Note that his estimate here is conservative, in that it excludes the enormous personnel, legal, and settlement costs associated with the August 2004 Critical Mass held prior to the RNC.]
With the City Hall steps as backdrop, the grassroots environmental group [Time's Up] released a report I helped prepare, estimating that police and other agencies spent $1,320,000 harassing and arresting Critical Mass riders from September 2004 through August 2006.
[snip]
During the same two-year period the city spent less than $700,000 planning, engineering, and installing bike lanes in the five boroughs. Thus, over the past two years New York City spent twice as much suppressing two dozen bicycle rides as it spent creating a safe bicycling infrastructure that hundreds of thousands of New Yorkers could be using every day.
[snip]