|Large, granite blocks can be used as a barrier element and have the added benefit of doubling as seating, depending on use / placement.
|36 in. long x 18 in. high, x 1.5 ft. wide.
|Varies — typically sourced from existing city inventory (reused).
|Pilot: 1 month to 1 year installation / Interim: 1 year to 5 year installation.
|Place along edge plaza area to visually define the plaza space. Strong case study example of this is NYCDOT’s use of granite blocks (along with planters) in and around plaza spaces to create a sense of enclosure and to buffer the plaza from motor vehicle traffic (see page 32 for more info). Blocks have also been used in Philadelphia for this purpose.
|Highly durable and long-lasting.
|Use regionally-appropriate, locally sourced blocks whenever possible.
|Extremely heavy, requires trained staff and special equipment to transport.
|Concrete blocks are a good alternative.
|Borrow from city public works or parks department.
|Purchase from local stone quarry or landscape vendor.