Washington Heights resident David Kelso launched the group in May due to frustrations with the A train.
The group will launch an ad campaign putting pressure on de Blasio to pay for emergency repairs.
Residents of Waterside Plaza found themselves without water for several hours Wednesday morning.
The central section of the bridge was lowered Tuesday and will be taken away Wednesday morning.
The NYC Ferry system, which launched May 1, hit the 1 million rider mark Wednesday.
The plan includes standing-only subway cars, a littering crackdown and clearer communication.
New legislation from Jesse Hamilton and Tremaine Wright would decriminalize turnstile-jumping.
The borough president created a new tourism office for the island.
"7 Train: Minutes to Midtown" will be on view at the New York Transit Museum starting Aug. 3.
The mayor's 5-point plan seeks "immediate relief for riders."
Activists have been seeking changes since a cyclist was fatally hit by a turning box truck at First Ave.
For the second time this year, the MTA declined to send a representative to hear out Uptown residents.
The train derailed during Friday morning's rush, officials said.
Thirty-seven bus routes citywide will see schedule changes starting in September.
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