Roadways represent the paved central portion of the street that allows access to and movement through an area. Most roadways are primarily designed for motor vehicle use.
Composite Pavement
Commonly known as asphalt, composite pavement is used throughout the City, consisting of a three inch layer of asphalt bitumen and stone aggregate over a nine inch concrete base. The asphalt is compacted by a roller to create a smooth and solid road surface.
Reinforced Concrete (Rigid Pavement)
Mixture comprising cement(s), aggregate(s), and water, which may include other chemical admixtures that hardens to form a solid road surface. The mixture may be poured over metal reinforcement bars.
Porous Asphalt
Asphaltic concrete with open-graded aggregate, in which the amount of fine particles is kept to a minimum, and in which the binder content is lower, allowing water to pass through into an open-graded reservoir.
Precast Porous Concrete Panel (PPCP)
Concrete mixture using minimal cementitious paste to coat the aggregate, and using little or no sand or fine aggregate, leaving substantial void content. This allows water to pass through to an open-graded reservoir underneath.
Granite Block
Historic smooth-finish granite block unit pavers often referred to as “cobblestones,” commonly used throughout New York City in the nineteenth century.