The improvements are the first phase of redesign plans for the roadway, nicknamed "Boulevard of Death."
Transportation advocates have pushed for safety upgrades on 21st Street for the last few years.
Raymond Ramos hit the victim early Monday at the corner of Nostrand Ave. and St. Johns Pl., police said.
Councilwoman Karen Koslowitz set aside funds for a study to determine how to make the street safer.
The DOT wants to increase pedestrian and cyclist access to the High Bridge, which will reopen in July.
The event, scheduled for March 7, will begin in Forest Hills.
The area around Hillside and Jamaica avenues is among the most crash-prone sections of Queens.
The city plans to bring more speed limit signs and lights timed for pedestrians to the priority areas.
Parents at WHEELS Elementary in Fort George said the school needs more traffic-safety measures.
The DOT wants to designate a slow zone in Hudson Heights and install a crosswalk on Bennett Avenue.
Jorge Rios died at 47 while driving on a motorcycle on Manhattan Avenue at Green Street.
Former M.S. 51 student Alison Collard de Beaufort wants kids to get involved in pedestrian safety.
The city plans to close Waverly Place to traffic between Seventh Avenue South and Charles Street.
The announcement follows the death of a 14-year-old boy at Caton Avenue and East Seventh Street.
From pedestrian deaths to Columbia's sexual assault protests, we looked back at the year's big events.
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