BROOKLYN - Major construction on two subway lines begins next week, and Brooklyn straphangers are speaking out demanding the MTA accommodate their travel needs.

Local leaders and members of the group Riders Alliance met in front of Brooklyn Borough Hall. They called for the MTA to create a comprehensive plan to accommodate riders during repair work.

That work will close subway connections between Brooklyn, Manhattan and Queens on the G and R lines for more than a year. The G tunnel closures begin next week and R tunnel closures begin in August.

An MTA representative says anything made of metal in both the Montague and Greenpoint tunnels needs to be ripped out and replaced. The tunnels were flooded during Superstorm Sandy, sparking corrosion.

The MTA will go through all the suggestions it’s received from straphangers, and will work with them and elected officials to help provide alternative transportation.