Isolation of inmates would be limited — but not eliminated — under a long-fought Board of Correction plan that spurred a public battle with City Hall.

Dr. Robert Cohen of the Board of Correction alleges delay of a planned vote to limit punitive segregation is part of bid to weaken reforms.

A Board of Correction hearing on Tuesday drew calls to change New York City’s policies on solitary confinement but yielded no action.

A growing chorus of critics wants to strictly limit or ban isolation in the wake of Layleen Polanco’s death. But what are the alternatives?