Signals / Object
Prison
in Boston, MA
A secure facility for confining people, typically surrounded by walls, fences, controlled gates, and guarded buildings.
Where it is
All-time count by city.
- COUNTED
- 3
- all time in Boston
- RANK
- #10
- among cities worldwide
- SHARE
- 6.1%
- of the top 15 cities
- DENSITY
- 0.45
- per 100k residents
Other objects in Boston
Things that physically exist: street furniture, signs, buildings. All-time counts.
- 01Street Sign6.5K
- 02Tactile Paving5.8K
- 03Barrier Kerb5.2K
- 04Crossing Markings Ladder5.1K
- 05No Crossing Markings4.8K
- 06Crossing Markings3.6K
- 07Park Tree3K
- 08Uncontrolled Crosswalk2.9K
- 09Lowered Kerb2.3K
- 10Deciduous Leaf Cycle2.3K
- 11Climate Resilience2.3K
- 12Public Transport Platform2.1K
- 13Walkable Neighborhood2.1K
- 14Street Light2K
- 15Wheelchair Accessible1.9K
- 16Cars Parked on Sidewalk1.9K
- 17Terraced Homes1.5K
- 18Graffiti1.4K
- 19School Zone Congestion1.4K
- 20Underpass1.3K
- 21Bicycle Parking1.3K
- 22Corner Townhouse1.3K
- 23Barrier Gate1.2K
- 24Urban Mobility1.2K