Streets near East 7th Street and Second Ave were blocked to cars, pedestrians and buses after the blast.
The Q103 bus, which runs along the western waterfront, will permanently have weekend service, MTA said.
The boy was struck while crossing Amsterdam Avenue near 165th Street, officials said.
One person was critically hurt and the other suffered serious injuries, but was stable, officials said.
Services changes will hit the 3, 4, 5, 6, 7, A, C, D, E and S lines this weekend.
The man was crossing Avenue M in the crosswalk when he was hit, officials said.
Tell us your thoughts on the new fare hikes, and how they will impact your monthly budget, if at all.
Reginald Prescott, 57, struck and killed 78-year-old Jean Bonne-Annee in East Flatbush Tuesday evening.
Police believe the victim was not the intended target of the Thursday afternoon shooting.
The Straphangers Campaign gave out its 2014 awards for the slowest and least reliable buses in the city.
The MTA only settled after appealing a verdict ordering the agency to pay $1.96 million to the family.
The man was struck while crossing a Claremont Village intersection Thursday night, officials said.
The unidentified victim was crossing East 147th Street and Willis Avenue when he was hit.
The anti-Jihad ads were submitted by a group headed by blogger Pamela Geller.
Buses on the M60 line are clogging Broadway and creating a safety hazard, residents said.
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