N.Y.C. Admin. Code § 5-341: § 5-341 Definitions.

As used in this subchapter, unless otherwise expressly stated, or unless the context or subject matter otherwise requires, the following terms shall mean:

1. "Improvement": The laying out, widening, extending or relocating a park, public place, highway or street, or the acquisition of title to real property required for laying out, widening, extending or relocating a park, public place, highway or street.

2. "Excess lands", or "additional lands", or "additional real property": The real property in addition to the real property needed or required for laying out, widening, extending or relocating a park, public place, highway or street.